publicationDate stringlengths 10 10 | abstract stringlengths 0 37.3k | title stringlengths 1 5.74k | doi stringlengths 11 47 ⌀ |
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2022-06-06 | This paper deals with initial-boundary value problems for a damped thin quasilinear plate. With restriction on the norms of the initial data, it will be established global weak and global strong solutions. It will also be shown that the strong solution is uniformly stable and unique. Furthermore, using a weak internal ... | Remarks on thin quasilinear plates with mixed boundary conditions | 10.1007/s00028-022-00810-w |
2022-06-06 | This paper aims to study the stability of solutions for a double-Kirchhoff type viscoelastic inverse source problem with nonlocal degenerate damping term and variable-exponent nonlinearities. Proving of existence and stability of solutions to inverse problems is of high importance because inverse problems are nonlinear... | Stability result for a variable-exponent viscoelastic double-Kirchhoff type inverse source problem with nonlocal degenerate damping term | 10.1007/s11587-022-00713-5 |
2022-06-01 | In this paper, the five-percent maximum overshoot design of uniformly damped binomial filters (transfer functions) is introduced. First, the Butterworth filter response is represented as a damped binomial filter response. To extend the maximum overshoot response of the second-order Butterworth to higher orders, the bin... | Uniformly Damped Binomial Filters: Five-percent Maximum Overshoot Optimal Response Design | 10.1007/s00034-021-01931-2 |
2022-06-01 | Purpose The present study lies on an in-depth experimental investigation in evaluating the performance of MR damper on structure subjected to dynamic load. A novel placement, orientation and working mechanism of MR damper has been chosen for its optimal performance in reducing the dynamic response of the frame structur... | Investigation of a Diagonal Magnetorheological Damper for Vibration Reduction | 10.1007/s42417-022-00458-3 |
2022-06-01 | In non-ideal vibratory system, the excitation is a nonlinear function of system response. The dynamic behavior of such system is often characterized by an energy source with limited power. The study of instability phenomena in non-ideal rotor driven through a non-ideal energy source is of considerable current interest.... | Instability attenuation and bifurcation studies of a non-ideal rotor involving time-delayed feedback | 10.1007/s11071-022-07367-w |
2022-06-01 | Identification of rotor unbalance and support dynamic coefficient plays a critical role in operation safety of large rotating machineries. In this paper, aiming at single-disc and single-span rotors, a novel algorithm called Fine-tuning Rotating Speed and Frequency Domain Fusion Identification (FRS-FDFI) is proposed to... | Theoretical and Numerical Studies on Simultaneous Identification of Rotor Unbalance and Sixteen Dynamic Coefficients of Two Bearings Considering Unbalance Responses | 10.1007/s12555-021-0340-5 |
2022-06-01 | This paper presents the nonlinear dynamics of a complex 2-DOF (two degree-of-freedom) system including nonlinear stiffness and damping elements, friction as well as impact, and the purpose of study is to give an original and deep investigation on the discontinuous dynamical behaviors for such a 2-DOF system through str... | Nonlinear dynamics for a class of 2-DOF systems with viscoelastic limit devices on a curved track | 10.1007/s11071-022-07375-w |
2022-06-01 | Abstract Non-ideal high-speed rotors often exhibits nonlinear jumps driven through a power drive with limited capacity. The study of nonlinear jump in such rotor system is of considerable current interest. These systems often get destabilized on exceeding a critical input power proximity to resonance. This phenomenon i... | Dynamics of a Non-Ideal Gyroscopic Rotor System with Translational-Rotational Coupling Effect of External and Internal Damping | 10.3103/S0025654422030116 |
2022-06-01 | The simulation of complex engineering applications often requires the consideration of component-level dynamics whose nature and time-scale differ across the elements of which the system is composed. Co-simulation offers an effective approach to deal with the modelling and numerical integration of such assemblies by as... | Energy-based monitoring and correction to enhance the accuracy and stability of explicit co-simulation | 10.1007/s11044-022-09812-5 |
2022-06-01 | In this paper, we propose in a Hilbertian setting a second-order time-continuous dynamic system with fast convergence guarantees to solve structured convex minimization problems with an affine constraint. The system is associated with the augmented Lagrangian formulation of the minimization problem. The corresponding d... | Fast Convergence of Dynamical ADMM via Time Scaling of Damped Inertial Dynamics | 10.1007/s10957-021-01859-2 |
2022-06-01 | In nanoresonators, thermoelastic damping (TED) is a primary energy dissipation mechanism. As a result, when designing nanoresonators, it is critical to limit this type of dissipation. This paper investigates the nonlocal TED of circular single-layered graphene sheet (SLGS) nanoresonators in axisymmetric out-of-plane vi... | Surface and Nonlocal Effects on the Thermoelastic Damping in Axisymmetric Vibration of Circular Graphene Nanoresonators | 10.1007/s10338-021-00276-2 |
2022-06-01 | We consider a simple frictionally constrained lap joint. Two identical beams were joined by a constant normal load. A periodic bending moment was applied on each beam to investigate the contact tractions at the joint interface. Predicting the dynamic behaviors of a frictionally constrained lap joint under periodic load... | Dynamic response predictions of frictionally constrained lap joints subjected to cyclic loading | 10.1007/s10999-021-09580-8 |
2022-06-01 | The moisture ingression into photovoltaic module has significant impact on the reliability as it participates in multiple degradation pathways. Damp heat test is performed at a temperature 85°C and relative humidity of 85% for 1000 h to assess the ability of a photovoltaic module under humid conditions. In this paper, ... | Analytical Modeling of Diffusion of Moisture in Silicon Photovoltaic Module under Damp Heat Testing Condition | 10.1007/s12633-021-01156-7 |
2022-06-01 | In practical engineering, we usually hope to find equivalent models for complex structures to simplify their mechanical analysis. Honeycomb structure has the characteristics of light weight, high stiffness and good energy absorption, etc., and is used in the anti-collision structure. However, As a continuum, the equiva... | Equivalent damper model for honeycomb structures | 10.1007/s10999-021-09578-2 |
2022-06-01 | Abstract The possibility of parametric control of the oscillation characteristics (amplitude and frequency) of a symmetrical thin extended flat float oscillating near the interface of two heavy ideal liquids by changing its shape (relative height) is studied. An analysis of the influence of the body shape on the charac... | PARAMETRIC CONTROL OF FLOAT OSCILLATIONS | 10.3103/S0025654422030049 |
2022-06-01 | In recent years, energy dissipative systems have been used as effective devices in structures subjected to earthquake loads. The optimal design of dampers has gained popularity as a research topic during the last four decades. That is widely notable that dampers can contribute a unique function in dynamic structures by... | An Overview of Optimal Damper Placement Methods in Structures | 10.1007/s40996-021-00752-2 |
2022-06-01 | Micro/nanobeam-based resonators have found extensive applications in the micro/nanoelectromechanical system industry. Thermoelastic damping (TED) is a major energy loss issue in micro/nanobeam resonators that limits their important performance parameter, namely, the TED limited quality factor (Q_TED). The critical leng... | Material-dependent thermoelastic damping limited quality factor and critical length analysis with size effects of micro/nanobeams | 10.1007/s12206-022-0533-8 |
2022-06-01 | Contemplating the global concern towards the environment, the current research is intended for finding out an effective way for curbing of the undesired industrial–agro residual waste which poses a serious threat to human and environment. Extensive research is carried out in developing materials systems with elevated e... | Energy Dissipation Behaviour of Bamboo Leaf Ash reinforced Aluminium Metal Matrix Composites | 10.1007/s40033-021-00310-0 |
2022-06-01 | A phenomenon called “beat” occurs in bell structures with slight asymmetry, wherein the vibration and the sound periodically fluctuate with respect to strength. In oriental bells, beat makes the bell sound grand and lively. The audience wants to hear the bell sound with a strong beat for as long as possible. The modal ... | Extraction of the damping ratio of a beat wave using envelope logarithmic decrement | 10.1007/s12206-022-0506-y |
2022-06-01 | Beneficial effects of nonlinear damping on energy harvesting and vibration isolation under harmonic inputs have been investigated showing that the introduction of nonlinear damping can increase the harvested energy and reduce the vibration over both the resonant and higher frequency ranges. However, the scenario become... | Beneficial effects of antisymmetric nonlinear damping with application to energy harvesting and vibration isolation under general inputs | 10.1007/s11071-022-07444-0 |
2022-06-01 | Abstract The propagation of dust–ion–acoustic wave (DIAW) in an unmagnetized collisional dusty plasma comprised from mobile ions, negative dust particles, and non-Maxwellian trapped electrons, modeled by a kappa distribution function along with a Schamel distribution, was investigated. Reductive perturbation theory (RP... | Studies on the Dust–Ion–Acoustic Solitary Wave in Planar and Non-Planar Super-Thermal Plasmas with Trapped Electrons | 10.1134/S1063780X22100038 |
2022-06-01 | The energy dissipation in sinusoidally driven particle dampers is highly dependent on the motion mode of the particle bed. Especially, for applications of low acceleration intensity, i.e., acceleration amplitude below gravitational acceleration, only small energy dissipation rates are obtained so far, due to sticking o... | Energy dissipation in horizontally driven particle dampers of low acceleration intensities | 10.1007/s11071-022-07348-z |
2022-06-01 | A condition that guaranties the exponential decay of the solutions of the initial-boundary value problem for the damped wave equation is proved. A method for the effective computability of the coefficient of exponential decay is also presented. | Remark on the exponential decay of the solutions of the damped wave equation | 10.1007/s11587-020-00552-2 |
2022-06-01 | In this study, the performance of rectangular added damping and stiffness (RADAS) dampers has been introduced in the diagonal element site to avoid brace buckling and energy dissipation by dampers. The innovation of this research is in the type of site of steel plates and the way of connection in the vicinity of gusset... | Performance of a New Model of Rectangular Damper in Diagonal Concentric Brace | 10.1007/s40996-021-00624-9 |
2022-05-28 | Effects of Zn/Ga ratio on microstructure, mechanical, damping and thermal properties of Mg– x Zn– y Ga ( x + y = 1 at.%, x / y = 3:1,1:1,1:3, x or y = 0) alloy solid solutions with similar grain sizes are investigated. With the lower Zn/Ga ratio, the yield strength, the elongation and the strain-amplitude-dependen... | Effects of Zn/Ga ratio on microstructure, mechanical, damping and thermal properties of Mg–Zn–Ga alloy solid solutions | 10.1557/s43578-022-00572-8 |
2022-05-28 | Several methods are available to design piles subjected to horizontal loadings. A simplified, one-dimensional finite element model that is applicable for various types of lateral loadings such as harmonic or impact loading as well as applicable for soil with different types of inhomogeneity that can be used in prelimin... | A numerical model for analysis of a pile subjected to horizontal dynamic loading in elastic homogeneous and nonhomogeneous soils | 10.1007/s12517-022-10345-6 |
2022-05-27 | A series of polyacrylate latex films with core–shell particle structure and different damping properties were first prepared by seed emulsion polymerization and by adjusting the ratio of soft/hard monomer in the core and shell layers of the latex particles. Higher damping factor (tan δ) was obtained by using styrene th... | Preparation and damping properties of polyacrylate and epoxy resin/polyacrylate composite latex materials | 10.1007/s10965-022-03096-1 |
2022-05-23 | The quantum version of cop and robber game, implemented on the quantum circuit, is investigated in the presence of noisy environment. The various noise models are applied on the initial quantum state and the final affected quantum states are studied by calculating the fidelity of the states. Specifically, amplitude dam... | Noise controlling entangling operators in the quantum network implementation of cop and robber game | 10.1007/s11128-022-03529-2 |
2022-05-16 | With the broader use of ferrofluid in industry and the sciences, ferrofluid research has produced many new branches. To obtain systematic analytical results and to help researchers gain insight into the dynamics of ferrofluid research, in this review, we first track and summarize the ferrofluid research over the past 1... | Systematic analysis of ferrofluid: a visualization review, advances engineering applications, and challenges | 10.1007/s11051-022-05477-5 |
2022-05-10 | In a Hilbert space setting, this paper is devoted to the study of a class of first-order algorithms which aim to solve structured monotone equations involving the sum of potential and nonpotential operators. Precisely, we are looking for the zeros of an operator $$A= \nabla f +B $$ A = ∇ f + B , where $$\nabla f$$ ∇ f ... | Newton-Type Inertial Algorithms for Solving Monotone Equations Governed by Sums of Potential and Nonpotential Operators | 10.1007/s00245-022-09846-3 |
2022-05-09 | The ball screw feed system (BSFS) is an important component of numerical control machine tools. The dynamic characteristics of BSFSs directly affect the machining precision and efficiency of machine tools. Due to the external excitation, the feed system can generate large vibrations, which can further decrease the prec... | Lateral vibration control of ball screw feed system considering the nut location | 10.1007/s40430-022-03533-8 |
2022-05-07 | The vibrations produced while machining components is annoying and yields discomfort to the operators. Also, if the vibrations are not damped properly, it reduces the machining performance and produces chatter. Magneto-rheological (MR) fluid is highly employed nowadays in dampers due to its ability of changing its visc... | Vibration Damping Analysis for Drilling Process Using MR Fluid-Assisted Worktable | 10.1007/s40033-022-00354-w |
2022-05-06 | In this paper, we are interested in the $$L^1-L^1$$ L 1 - L 1 estimate for the energy, the elastic energy $$\Vert |D|^\sigma u(t,\cdot )\Vert _{L^1}$$ ‖ | D | σ u ( t , · ) ‖ L 1 and the kinetic energy $$\Vert u_t(t,\cdot )\Vert _{L^1}$$ ‖ u t ( t , · ) ‖ L 1 to the Cauchy problems for a class of special time-dependent... |
$$L^1-L^1$$
L
1
-
L
1
... | 10.1007/s00009-022-02044-z |
2022-05-05 | We consider in this article the weakly coupled system of wave equations in the scale-invariant case and with time-derivative nonlinearities. Under the assumption of small initial data, we obtain a better characterization of the delimitation of the blow-up region by deriving a new candidate for the critical curve. More ... | Improvement on the Blow-Up for the Weakly Coupled Wave Equations with Scale-Invariant Damping and Time Derivative Nonlinearity | 10.1007/s00009-022-02062-x |
2022-05-02 | Possibility of using non-maximally entangled states in quantum bidirectional direct communication has been shown recently by Srikanth A and Balakrishnan (Quantum Inf. Process. 19:133, 2020) [1]. The effect of noise in this protocol is analyzed by considering amplitude and phase damping models. Suitable combinations of ... | Effect of Noise in the Quantum Bidirectional Direct Communication Protocol Using Non- maximally Entangled States | 10.1007/s10773-022-05115-9 |
2022-05-01 | This paper provides a practical method for estimating structural mechanical damping in sub-synchronous torsional interaction (SSTI) analysis with limited information on the generators. The risk of SSTI is generally assessed by comparing the damping of the turbine generator with that of the electrical system on a proble... | Estimation of Structural Mechanical Damping in Multi-mass of Turbine Generator for SSTI Study | 10.1007/s42835-022-01045-y |
2022-05-01 | Using some related concepts as well as the method of uniform estimations, we study the existence of pullback $$\mathcal {D}$$ D -attractors for the non-autonomous three-dimensional Boussinesq equations with damping in the periodic domain when $$3<\beta <5$$ 3 < β < 5 . | Pullback
$$\mathcal {D}$$
D
-Attractors of the 3D Boussinesq Equations with Damping | 10.1007/s40840-022-01253-9 |
2022-05-01 | Damping in vibrating structures is much less understood than their stiffness and inertial properties and in timber structures it is even less understood how damping is generated in motion characteristic of bending and shear separately. We analyse these contributions through application of the so-called method of comple... | Material Damping Prediction in Timber Beams Based on Timoshenko Free-Free Beam Model | 10.1007/s12205-022-1010-8 |
2022-05-01 | A fractionally damped vibration energy harvester excited by the wide-band random noise is investigated theoretically in this paper. Firstly, by introducing the generalized harmonic transformation, an equivalent uncoupled system only with respect to the mechanical states is established, while the external circuit and th... | Stochastic analysis of a nonlinear energy harvester with fractional derivative damping | 10.1007/s11071-022-07338-1 |
2022-05-01 | Large MR (MR) dampers are popular due to their higher damping force capabilities which makes them suitable in the field of civil engineering, structural engineering, suspension bridge structure, mining engineering, and agricultural engineering applications. This paper presents a comprehensive review of large MR dampers... | State-of-the-art recent developments of large magnetorheological (MR) dampers: a review | 10.1007/s13367-022-00021-2 |
2022-05-01 | In practical rock engineering, Universal Distinct Element Code (UDEC) is one of the most widely used two-dimensional software packages for simulating discontinuum behaviors of rocks and rockmasses. Over the years, this software has been used to study phenomena, such as grain-scale fracturing in laboratory specimens, sp... | Effect of Damping Mode in Laboratory and Field-Scale Universal Distinct Element Code (UDEC) Models | 10.1007/s00603-021-02609-6 |
2022-05-01 | In a Hilbert space setting, for convex optimization, we analyze the convergence rate of a class of first-order algorithms involving inertial features. They can be interpreted as discrete time versions of inertial dynamics involving both viscous and Hessian-driven dampings. The geometrical damping driven by the Hessian ... | First-order optimization algorithms via inertial systems with Hessian driven damping | 10.1007/s10107-020-01591-1 |
2022-05-01 | Freeze–thaw cycles, aging, and freeze–thaw cycles superimposed aging test on high-damping rubber bearings (HDR) were performed to study the durability of HDR for sea-crossing bridges in northern coastal areas. The change laws of horizontal mechanical properties of HDR under different tests were revealed. After freeze–t... | Influence of freeze–thaw cycles and aging on the horizontal mechanical properties of high damping rubber bearings | 10.1007/s42464-022-00154-7 |
2022-05-01 | A novel numerical methodology is presented to solve the dynamic response of railway bridges under the passage of running trains, considering soil–structure interaction. It is advantageous compared to alternative approaches because it permits, (i) consideration of complex geometries for the bridge and foundations, (ii) ... | Fast simulation of railway bridge dynamics accounting for soil–structure interaction | 10.1007/s10518-021-01191-0 |
2022-05-01 | Asymmetric damping forces induce the equilibrium position of the isolated body to shift downward. Inspired by this phenomenon, this paper proposes the novel concept of shifting an isolated body based on the vibration of nonlinear systems with asymmetric damping forces. To verify the feasibility of this concept, a piece... | Controlling the vertical shift of an isolated body based on the vibration of nonlinear systems with asymmetric damping forces | 10.1007/s11012-022-01496-7 |
2022-05-01 | This paper is focused on investigating the bifurcation and vibration resonance problems of fractional double-damping Duffing time delay system driven by external excitation signal with two wildly different frequencies $$\omega $$ ω and $$\Omega $$ Ω . Firstly, the approximate expressions of the critical bifurcation poi... | Bifurcation and vibration resonance in the time delay Duffing system with fractional internal and external damping | 10.1007/s11012-022-01483-y |
2022-05-01 | Shock absorption layer is an effective measure to decrease damage of tunnels under earthquake. According to previous work, the smaller stiffness of damping material, the better damping effect of the tunnel. In order to meet the actual engineering requirements, the shock absorption layer is applied to the upper part of ... | Study on Seismic Response and Damping Performance of Tunnels with Double Shock Absorption Layer | 10.1007/s12205-022-1862-y |
2022-05-01 | In this paper, a MEMS-based biosensor composed of coupled microresonators is proposed for digital microfluidics applications. This sensor consists of three parts including electrostatic comb-drive actuators, capacitive sensing, and active area located in the center of the structure. All applied resonators are in the sa... | Design and analysis of a new MEMS biosensor based on coupled mechanical resonators for microfluidics applications | 10.1007/s10470-021-01963-3 |
2022-05-01 | To solve the problems of low identification accuracy and complex identification methods in the Bouc-Wen model of the magnetorheological (MR) damper, a new parameter identification method using the fireworks algorithm (FWA) is proposed. According to the experimental results of the dynamic characteristics of the MR dampe... | Parameter identification of the Bouc-Wen model for the magnetorheological damper using fireworks algorithm | 10.1007/s12206-022-0405-2 |
2022-05-01 | Uncertainty and disturbance (UAD) always exist and influence negatively on technical systems. Focusing on improving the effectiveness of smart dampers (SDs)-based semi-active train-car suspensions (SD-TCSs), we present the fuzzy-compensator-enhanced fractional-derivative (FD) order sliding control of a class of SD-TCSs... | SD-TCSs Control Deriving from Fractional-order Sliding Mode and Fuzzy-compensator | 10.1007/s12555-020-0115-4 |
2022-04-27 | In this paper we consider a transmission problem for the wave equations with past history and acoustic boundary conditions, involving two distinct domains connected through a common interface. The frictional dampings are only distributed in a small neighbourhood of the interface. Under some geometric conditions, we obt... | Stabilization of a transmission problem with past history and acoustic boundary conditions | 10.1007/s00033-022-01751-7 |
2022-04-27 | Dynamics of ion-acoustic wave (IAW) are observed in a magnetized collisional four-component dusty plasma comprising cold ions, inertialess two-temperature electrons, and immobile negatively charged dust grains. Employing the reductive perturbation technique (RPT), the damped forced modified Zakharov–Kuznetsov (DFMZK) e... | Qualitative studies of the influence of damping and external periodic force on ion-acoustic waves in a magnetized dusty plasma through modified ZK equation | 10.1007/s13538-022-01083-x |
2022-04-27 | The aim of this paper is to investigate the existence of uniform random attractor for a non-autonomous stochastic strongly damped wave equation driven by multiplicative noise defined on $${{\mathbb {R}}}^{N}$$ R N ( $$1\le N\le 3$$ 1 ≤ N ≤ 3 ). First, we prove the equation can generate a non-autonomous random dynamical... | Uniform random attractors for a non-autonomous stochastic strongly damped wave equation on
$${{\mathbb {R}}}^{{\mathbb {N}}}$$
R
N
... | 10.1007/s00033-022-01719-7 |
2022-04-27 | We examine how amplitude noise in queries to the oracle degrades a performance of quantum search algorithm. The Grover search and similar techniques are widely used in various quantum algorithms, including cases where rival parties are fighting over confidential data. Hence, the oracle-box wires become the subject of c... | Quantum search degeneration under amplitude noise in queries to the oracle | 10.1007/s11128-022-03501-0 |
2022-04-19 | In the framework of a real Hilbert space, we address the problem of finding the zeros of the sum of a maximally monotone operator A and a cocoercive operator B . We study the asymptotic behaviour of the trajectories generated by a second order equation with vanishing damping, attached to this problem, and governed by a... | Second Order Splitting Dynamics with Vanishing Damping for Additively Structured Monotone Inclusions | 10.1007/s10884-022-10160-3 |
2022-04-12 | The performance of a wide area damping controller (WADC) can be affected considerably if a photovoltaic (PV) power plant is integrated with the power system. A WADC using state feedback control law is proposed in this paper to eliminate the frequency oscillation of interconnected power system integrated with solar PV c... | Delay dependent wide area damping controller design for a linear parameter varying (LPV) power system model considering actuator saturation and changing environmental condition | 10.1007/s12046-022-01831-4 |
2022-04-08 | Modified negative stiffness amplifying damper (MNSAD) is a novel vibration control device expected to consist of a negative stiffness spring with flexible cladding material. In this system, a dashpot is used in conjunction with the negative stiffness spring, and the damping magnification effect is greatly enhanced by a... | Rehabilitation of SDOF systems under air blast loading with a modified negative stiffness amplifying damper | 10.1007/s41024-022-00178-x |
2022-04-06 | We consider an elastic/viscoelastic problem for the Bresse system with fully Dirichlet or Dirichlet–Neumann–Neumann boundary conditions. The physical model consists of three wave equations coupled in certain pattern. The system is damped directly or indirectly by global or local Kelvin–Voigt damping. Actually, the numb... | Polynomial stabilization of non-smooth direct/indirect elastic/viscoelastic damping problem involving Bresse system | 10.1007/s00033-022-01728-6 |
2022-04-05 | Cement stabilization is one of the chemical stabilization techniques carried out to improve sabkha soil engineering properties. Cement can be mixed with sabkha at natural water content. However, there is a lack of information concerning the dynamic properties of cemented sabkha. Therefore, this study’s primary purpose ... | Cyclic behavior of cement-stabilized sabkha soil | 10.1007/s12517-022-09968-6 |
2022-04-02 | This study presents an observer-based anti-windup robust proportional–integral–derivative controller with state estimator method for damped outrigger structure using magneto-rheological damper to mitigate the seismic response. In this approach, full-order Kalman observer is designed for estimating the states of the dam... | Observer-based anti-windup robust PID controller for performance enhancement of damped outrigger structure | 10.1007/s41062-022-00798-9 |
2022-04-01 | This article presents a nonlinear displacement based finite elements model to study and analyze the nonlinear dynamic response of flexible double wishbone structural vehicle suspension system considering damping effect which was not previously discussed elsewhere. Due to large deflection and moderate rotation encounter... | Nonlinear dynamics of viscoelastic flexible structural systems by finite element method | 10.1007/s00366-020-01141-5 |
2022-04-01 | Abstract For quantitative estimation of the spectral sensitivity of matrix photodetectors, a method based on Fourier transforms for a more detailed parsing of characteristics in frequency and time domains by the value of the bandwidth index, shape of the impulse (time) response curve, vibration degree, value of damping... | Comparative Analysis of the Spectral Sensitivity of Three-Color Matrix Photodetectors | 10.3103/S8756699022020121 |
2022-04-01 | We study existence, uniqueness, continuous dependence, general decay of solutions of an initial boundary value problem for a viscoelastic wave equation with strong damping and nonlinear memory term. At first, we state and prove a theorem involving local existence and uniqueness of a weak solution. Next, we establish a ... | Continuous dependence and general decay of solutions for a wave equation with a nonlinear memory term | 10.21136/AM.2022.0200-21 |
2022-04-01 | Background Flexible aerospace structures present dynamic characteristics of low natural frequency. For a long-term free-floating spacecraft, theses flexible aerospace structures are prone to vibrate due to various excitation. However, it is extremely difficult to eliminate these low-frequency vibrations. Purpose The ma... | Force Optimization and Damping Performance of a Novel Ferrofluid Inertial Damper Based on the Levitation Principle of Ferrofluids | 10.1007/s42417-021-00416-5 |
2022-04-01 | Liquid containing tanks are very common civil engineering systems used chiefly for storage purposes. Very often, the tank is placed atop a primary structure and contains considerable amount of liquid mass, sufficient for designing the tank to function as an inertia-based supplemental damping device for the primary stru... | Use of Deep Liquid-Containing Tanks as Dynamic Vibration Absorbers for Lateral Vibration Control of Structures: A Review | 10.1007/s40996-021-00679-8 |
2022-04-01 | In this work, we prove the existence of global (in time) small data solutions for wave equations with two dissipative terms and with power nonlinearity $$|u|^p$$ | u | p or nonlinearity of derivative type $$|u_t|^p$$ | u t | p , in any space dimension $$n\geqslant 1$$ n ⩾ 1 , for supercritical powers $$p>{\bar{p}}$$ ... | Global small data solutions for semilinear waves with two dissipative terms | 10.1007/s10231-021-01128-z |
2022-04-01 | This paper considers the scalable control of power systems, i.e., control with the constraint that controllers of all generators are the same. Imposing this constraint reduces the time and effort required to construct large-scale power systems because we can obtain controllers of all generators merely by designing one ... | Scalable control of power systems | 10.1007/s00202-021-01364-9 |
2022-04-01 | This paper is concerned with the 3D inhomogeneous incompressible Navier-Stokes equations with damping. We find a range of parameters to guarantee the existence of global strong solutions of the Cauchy problem for large initial velocity and external force as well as prove the uniqueness of the strong solutions. This is ... | Global regularity for the 3D inhomogeneous incompressible Navier-Stokes equations with damping | 10.21136/AM.2022.0166-21 |
2022-04-01 | This work extends the sediment-laden mixture model with consideration of the turbulence damping and particle wake effects under the framework of improved efficiency and accuracy. The mixture model consists of the continuity and momentum equations for the sediment-laden mixture, and the continuity equation for the sedim... | A general two-phase mixture model for sediment-laden flow in open channel | 10.1007/s42241-022-0023-6 |
2022-04-01 | In this paper, we consider the existence of homoclinic solution for a class of damped vibration problem $$\begin{aligned} \ddot{x}(t)+(q(t)I_{N\times N}+B){\dot{x}}(t)+\left( \frac{1}{2} q(t)B-A(t)\right) x(t)+H_{x}(t,x(t))=f(t). \end{aligned}$$ x ¨ ( t ) + ( q ( t ) I N × N + B ) x ˙ ( t ) + 1 2 q ( t ) B - A ( t ) x ... | Existence of Homoclinic Solutions for a Class of Damped Vibration Problems | 10.1007/s12346-022-00584-z |
2022-04-01 | In this paper, we deal with the nonlinear second-order differential equation with damped vibration term involving p -Laplacian operator. Of particular interest is the resolution of an open problem. An interesting outcome from our result is that we can obtain the fast homoclinic solution with general superlinear growth ... | On a Damped Vibration Problem Involving p-Laplacian Operator: Fast Homoclinic Orbits | 10.1007/s10255-022-1083-7 |
2022-04-01 | Existing studies primarily focus on stiffness and damping under full-film lubrication or dry contact conditions. However, most lubricated transmission components operate in the mixed lubrication region, indicating that both the asperity contact and film lubrication exist on the rubbing surfaces. Herein, a novel method ... | Contact stiffness and damping of spiral bevel gears under transient mixed lubrication conditions | 10.1007/s40544-020-0479-8 |
2022-04-01 | We study the critical transition problem for a stochastically forced birhythmic vibro-impact (BVI) model with improved memory damping regime (IMDR) effect. This paper then reports a detailed probabilistic description on the random distribution of the oscillator response. Analytical criteria for critical transitions are... | Transitions in a noisy birhythmic vibro-impact oscillator with improved memory damping regime | 10.1007/s11071-022-07261-5 |
2022-04-01 | Time-history analysis is a versatile tool for studying structural dynamic behaviors. The run-time is, however, considerable. A Step-Enlargement-Based Time-History Analysis Acceleration Technique (SEB THAAT) was proposed in 2008 for structural dynamic problems when the excitation is in a digitized format. Many successfu... | Performance of a Time Integration Acceleration Technique Applied to Seismic Analysis of Non-classically Damped Structural Dynamics | 10.1007/s40996-021-00666-z |
2022-04-01 | In this paper, a novel time-marching procedure is proposed for dynamic analysis. The proposed new technique is fourth-order accurate for undamped models; third-order accurate for numerically damped models; and second-order accurate for physically damped models. The method is very straightforward to implement and to app... | A straightforward high-order accurate time-marching procedure for dynamic analyses | 10.1007/s00366-020-01129-1 |
2022-04-01 | This paper presents results from a series of stress-controlled undrained cyclic triaxial tests on the undisturbed marine silty clay, silt, and fine sand soils obtained from the Bohai Sea, China. Emphasis is placed on the major factors for predominating the dynamic shear modulus ( G ) and damping ratio ( λ ) in the shea... | Dynamic shear modulus and damping ratio characteristics of undisturbed marine soils in the Bohai Sea, China | 10.1007/s11803-022-2093-4 |
2022-04-01 | The simulation of multibody systems with frictional contacts is a fundamental tool for many fields, such as robotics, computer graphics, and mechanics. Hard frictional contacts are particularly troublesome to simulate because they make differential equations stiff, calling for computationally demanding implicit integra... | Exponential integration for efficient and accurate multibody simulation with stiff viscoelastic contacts | 10.1007/s11044-022-09818-z |
2022-04-01 | In the manufacturing of dies and molds, vibrations may represent serious problems, since the finishing tool used is usually slender (high length/diameter ratio) in order to machine deep cavities with complex geometries, typical of these products. Vibration is an undesirable phenomenon in any machining operation as it c... | An experimental evaluation of particle impact dampers applied on the tool for milling of hardened steel complex surface | 10.1007/s00170-022-08782-4 |
2022-04-01 | A multiple rocking wall-frame (MRWF) system, in which the wall panels are directly connected to the adjacent beams and foundation is presented herein. In the MRWF system, the unbonded post-tensioned (PT) tendons are used to promote the self-centering ability, and O-shaped steel dampers are applied to enhance the energy... | Numerical study of a multiple post-tensioned rocking wall-frame system for seismic resilient precast concrete buildings | 10.1007/s11803-022-2096-1 |
2022-04-01 | Nonlinear forced response analyses of mechanical systems in the presence of contact interfaces are usually performed in built-in numerical codes on reduced order models (ROM). Most of the cases these derive from complex finite element (FE) models, resulting from the high accuracy the designers require in modeling and m... | Stress recovery algorithm for reduced order models of mechanical systems in nonlinear dynamic operative conditions | 10.1007/s11071-022-07241-9 |
2022-04-01 | Abstract The influence of the dust–ion collision effect on the propagation of ion–acoustic waves (IAWs) in a collisional magnetized dusty plasma containing positive ions, dust grains with a negative charge and the electrons that follow combined Kappa–Cairns distribution is observed. Employing reductive perturbation tec... | Studies on the Effect of Dust–Ion Collision on Dust–Ion Acoustic Solitary Waves in a Magnetized Dusty Plasma in the Framework of Damped KP Equation and Modified Damped KP Equation | 10.1134/S1063780X22040018 |
2022-04-01 | Purpose Semi-active devices are showing a greater prominence in several engineering applications in recent times. This work makes an attempt to evaluate the performance of semi-active damper when used with a class of smart material called magneto-rheological (MR) fluid. Method Initially an MR damper is developed and ch... | Performance Evaluation of Magneto-Rheological Damper Through Characterization Testing, Modeling and its Implementation in Quarter Car | 10.1007/s42417-021-00422-7 |
2022-04-01 | Accurate damping estimation is critical to the serviceability assessment of large and flexible civil infrastructure. However, the frequency of sensor faults found in the long-term monitored data of large-scale structures is a potential cause of errors in the damping estimates. A machine-learning-based fault-data manage... | Automated damping identification of long-span bridge using long-term wireless monitoring data with multiple sensor faults | 10.1007/s13349-022-00556-6 |
2022-04-01 | Previous studies about optimizing earthquake structural energy dissipation systems indicated that most existing techniques employ merely one or a few parameters as design variables in the optimization process, and thereby are only applicable only to simple, single, or multiple degree-of-freedom structures. The current ... | Development of hybrid optimization algorithm for structures furnished with seismic damper devices using the particle swarm optimization method and gravitational search algorithm | 10.1007/s11803-022-2088-1 |
2022-03-30 | Background Isoproterenol (ISO), a synthetic on selective β-adrenergic agonist, provides a simple and non-invasive method for inducing myocardial injury with lower mortality and higher reproducibility. Phlegm-damp syndrome, as known as “Tanshi” in Chinese, is one of Traditional Chinese Medicine (TCM) syndrome differenti... | Metabolism disorder promotes isoproterenol-induced myocardial injury in mice with high temperature and high humidity and high-fat diet | 10.1186/s12872-022-02583-z |
2022-03-22 | Stay cables in cable-stayed bridges experience vibrations due to wind, rain, and traffic-induced excitations and may suffer fatigue damage. Shape memory alloy (SMA) material can protect cable damages from fatigue issues. This paper summarizes the applications and effectiveness of SMAs for mitigating cable vibration. SM... | Application of SMA wire in vibration mitigation of bridge stay cable: a state-of-the-art review | 10.1007/s41062-021-00733-4 |
2022-03-14 | Microporous metal entangled structure (MES) can reduce various hazards caused by vibration due to its good damping energy dissipation. However, its bearing capacity is weak and cannot realize the multi-functional characteristics of high damping and high stiffness. In this work, a kind of interpenetrating metal entangle... | Study on dynamic properties of metal entangled structure/silicone rubber interpenetrating composite | 10.1557/s43578-022-00500-w |
2022-03-01 | In this paper, we investigate the stability of a class of wave equations with local coupling effect and indirect mixed-type dampings. Some optimal (so far best) stability results for the energy of the system are established under much weak basic assumptions on the locally coupled terms and the damping terms. In particu... | Stability for Locally Coupled Wave-Type Systems with Indirect Mixed-Type Dampings | 10.1007/s00245-022-09830-x |
2022-03-01 | With the purpose of improving the frequency support capability of high voltage direct current (HVDC) transmission equipment and ensuring the stable and reliable operation for the receiving end power grid, a virtual synchronous generator (VSG) control algorithm for high voltage direct current converter was proposed in t... | Inertia Parameter Selection Method for HVDC Converter Station Based on VSG Control | 10.1007/s42835-021-00981-5 |
2022-03-01 | Elastomeric layers, that serve as the base of a viscoelastic (VE) damping system in structures, dissipate energy through shear deformation and transform vibration energy into heat by internal friction between polymer chains. In this study, two compounds, based on natural rubber (NR) matrix and butyl rubber (IIR) matrix... | Experimental and numerical study on developed elastomeric layers based on natural and butyl matrix rubbers for viscoelastic dampers | 10.1007/s11043-021-09484-2 |
2022-03-01 | Thermoelastic damping is becoming a leading factor for determining the quality of the micromechanical resonators in terms of their sensitivity. The present study is devoted to the analysis of thermoelastic damping of a micro-beam resonator by employing the concept of three-phase-lag (TPL) theory of thermoelasticity in ... | Significance of memory-dependent derivative approach for the analysis of thermoelastic damping in micromechanical resonators | 10.1007/s11043-020-09477-7 |
2022-03-01 | Abstract A method is proposed for calculating the parameters of a spring compensator in a piston pump. The method takes account of the deficiencies of existing models describing a system with a piston pump and a pressure-fluctuation compensator. If no account is taken of the compensator’s parameters and the physical ch... | Calculating the Parameters of a Spring Compensator in a Piston Pump | 10.3103/S1068798X22030273 |
2022-03-01 | Due to the substantial role of damping in the performance of real-life structures, many researchers are interested in analyzing its various effects on the dynamic behavior of systems. In this work, a theoretical investigation is performed on the wave propagation in monoatomic nonlinear chains in the presence of energy ... | Wave propagation in nonlinear monoatomic chains with linear and quadratic damping | 10.1007/s11071-021-07184-7 |
2022-03-01 | The primary goal of this work is to design a novel magnetorheological damper with selectable performance parameters to improve the environmental adaptability of vibration systems equipped with such a damper and to provide a new idea for the design of magnetorheological dampers. The feasibility of the new idea is verifi... | Design of multi-channel bypass magnetorheological damper with three working modes | 10.1007/s10999-021-09567-5 |
2022-03-01 | The primary objective of this article is to demonstrate that Rayleigh’s quotient and its variants retain the usual properties of boundedness and stationarity even when the linear vibratory system is non-classically damped, extending previously accepted results that these quotients could attain stationarity when damping... | Rayleigh’s quotients and eigenvalue bounds for linear dynamical systems | 10.1007/s00419-022-02105-5 |
2022-03-01 | Quasi-zero-stiffness (QZS) vibration isolators have been widely studied, because they show excellent high static and low dynamic stiffnesses and can effectively solve low-frequency and ultralow-frequency vibration. However, traditional QZS (T-QZS) vibration isolators usually adopt linear damping, owing to which achievi... | A quasi-zero-stiffness isolator with a shear-thinning viscous damper | 10.1007/s10483-022-2829-9 |
2022-02-28 | Integrally bladed disks (blisk) have been widely used in the turbo-machinery industry due to its high aerodynamic performance and structural efficiency. A friction ring damper (FRD) is usually integrated in the system to improve its low damping. However, the design of the geometry of this FRD become complex and computa... | Geometric design of friction ring dampers in blisks using nonlinear modal analysis and Kriging surrogate model | 10.1007/s00158-021-03093-w |
2022-02-26 | In this paper, we focus on the global regularity of smooth solutions for 2D incompressible generalized magnetohydrodynamics equations with a velocity damping term and the standard Laplacian magnetic diffusion. We show that this system has the unique global smooth solutions when the initial data in Besov space are suita... | Global regularity of the 2D generalized MHD equations with velocity damping and Laplacian magnetic diffusion | 10.1007/s00033-022-01699-8 |
2022-02-26 | In the present study, Complex Eigenvalue Analysis (CEA) was used for predicting squeal noise generation in a commercial drum brake. By using a CEA model, Rayleigh damping properties were added to the computer simulation on ANSYS, and a discussion about its implications and proposed calculations are also shown. The Rayl... | Damping effect on nonlinear drum brake squeal prediction | 10.1007/s40430-022-03398-x |
2022-02-25 | Corrosion of steel reinforcement is one of the most common durability issues for reinforced concrete (RC) structures, especially when located in marine areas. The study of the mechanical consequences of this pathology is of great importance to assess their performance. Experimental campaigns have been carried out on co... | Experimental study of corroded RC beams: dissipation and equivalent viscous damping ratio identification | 10.1617/s11527-022-01906-y |
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