publicationDate stringlengths 10 10 | abstract stringlengths 0 37.3k | title stringlengths 1 5.74k | doi stringlengths 11 47 ⌀ |
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2023-07-03 | This paper investigates the well-posedness and stability of the beam model with degenerate nonlocal damping: $$ u_{tt}+\Delta ^2u-M(\Vert \nabla u\Vert ^2)\Delta u+(\Vert \Delta u\Vert ^\theta +q\Vert u_t\Vert ^\rho )(-\Delta )^\delta u_t+f(u)=0\ \ \hbox {in} \ \ \Omega \times {\mathbb {R}}^+,$$ u tt + Δ 2 u - M ( ‖ ∇... | Stability for a Class of Extensible Beams with Degenerate Nonlocal Damping | 10.1007/s12220-023-01353-3 |
2023-07-01 | This study proposes a methodology to identify the modal damping ratio of a highly damped structure. Specifically, we explain the change in the modal damping ratio of the object itself by using an existing novel multiple excitation testing method with velocity feedback (FB) control to counteract the damping force, and w... | Experimental modal analysis using undamped control for high damping system | 10.1007/s00419-023-02419-y |
2023-07-01 | We analyze the convergence properties when the time t tends to infinity of the trajectories generated by damped inertial dynamics which are driven by the sum of potential and nonpotential operators. Precisely, we seek to reach asymptotically the zeros of a maximally monotone operator which is the sum of a potential ope... | Convergence of Inertial Dynamics Driven by Sums of Potential and Nonpotential Operators with Implicit Newton-Like Damping | 10.1007/s10957-023-02228-x |
2023-07-01 | In this paper, we consider a Vlasov–Poisson system in the presence of radiation damping, which is a two-species Vlasov–Poisson system for electrons and ions with additional terms to describe the effect of accelerated charged particles. We obtain the global-in-time and optimal decay estimates of classical solutions to i... | Optimal decay estimates for the Vlasov–Poisson system with radiation damping | 10.1007/s00033-023-02044-3 |
2023-07-01 | A curve-fitting technique using a minimum error criterion was presented for identifying higher damping ratios near the critical damping ratio in single-degree-of-freedom systems. Free vibration decay tests were performed on a linear spring–mass–damper system with constant initial conditions using a modified commercial ... | Experimental identification of high damping ratios in single-degree-of-freedom systems | 10.1007/s00419-023-02414-3 |
2023-07-01 | Two results about the multiplicity of nontrivial periodic bouncing solutions for sublinear damped vibration systems − ẍ = g ( t ) ẋ + f ( t, x ) are obtained via the Generalized Nonsmooth Saddle Point Theorem and a technique established by Wu Xian and Wang Shaomin. Both of them imply the condition “ f ≥ 0” required in ... | Multiplicity of Periodic Bouncing Solutions for Sublinear Damped Variation Systems via Nonsmooth Variational Methods | 10.1007/s10114-023-1166-2 |
2023-07-01 | In a stand-alone inverter, a high-quality sinusoidal output of a constant voltage and constant frequency must be supplied to the load regardless of the load condition. Therefore, the THD of the output voltage in steady-state should be low and the ability to recover from the transient period needs to be fast for the loa... | Cooperative Control of Two Single-Phase Full-Bridge Structures Composed of Master and Damping Inverter for Output Voltage Stabilization | 10.1007/s42835-023-01478-z |
2023-07-01 | Process damping significantly improves the machining stability in the low speed cutting process. Just because of this, it plays an important role in the avoidance of chatter vibrations for the situations in which the relatively low cutting speeds have to be used. Recently, more and more efforts have been focusing on pr... | Mechanism and modeling of machining process damping: a review | 10.1007/s00170-023-11390-5 |
2023-07-01 | We consider the damped Newton method for strongly monotone and Lipschitz continuous operator equations in a variational setting. We provide a very accessible justification why the undamped Newton method performs better than its damped counterparts in a vicinity of a solution. Moreover, in the given setting, an adaptive... | A short note on an adaptive damped Newton method for strongly monotone and Lipschitz continuous operator equations | 10.1007/s00013-023-01858-x |
2023-07-01 | This paper deals with the distributed consensus problem for networked flexible-joint manipulator systems which are formulated by underactuated Euler-Lagrange (EL) dynamics. Based on the energy-shaping scheme of passivity-based control (PBC) with interconnection and damping assignment, a novel decentralized controller i... | Achieving Distributed Consensus in Networked Flexible-joint Manipulator Systems via Energy-shaping Scheme | 10.1007/s12555-021-0869-3 |
2023-07-01 | Excessive vibration in civil and mechanical systems can lead to structural damage or harmful noise. Structural vibration can be mitigated by reducing the energy of the vibration source or by isolating the external disturbance from the target structure. Depending on the tunability and power consumption of the system, ex... | Biological Vibration Damping Strategies and Mechanisms | 10.1007/s42235-023-00366-6 |
2023-07-01 | The damped nonlinear Schr $$\ddot{o}$$ o ¨ dinger equation is derived from the helicoidal Joyeux and Buyukdagli model of DNA, in which the particles of the surrounding solvent medium induces a weak viscosity. This is achieved by using a perturbation technique known as the multiple scale expansion in the semi-discrete a... | Impact of helicoidal interactions and weak damping on the breathing modes of Joyeux-Buyukdagli model of DNA | 10.1007/s12648-023-02610-5 |
2023-07-01 | Bird feathers sustain bending and vibrations during flight. Such unwanted vibrations could potentially cause noise and flight instabilities. Damping could alter the system response, resulting in improving quiet flight, stability, and controllability. Vanes of feathers are known to be indispensable for supporting the ae... | The Role of Vanes in the Damping of Bird Feathers | 10.1007/s42235-022-00329-3 |
2023-07-01 | Background Underwater ship has extremely high requirements for vibration and noise control. Reducing the vibration and noise level of underwater ship has always been a hot topic in various countries. With the deepening of research, a large number of new technologies continue to emerge. For specific problems, without ch... | Particle Damping Vibration Absorber and Its Application in Underwater Ship | 10.1007/s42417-022-00700-y |
2023-07-01 | Convective heat and mass transfer are common phenomena in the field of engineering. In recent years, the research on convective heat and mass transfer is getting deeper and deeper. People are constantly seeking new methods to improve the efficiency of heat and mass transfer, but the research on the mechanism of heat an... | A review: the development of field synergy and its application to cooling exchangers in the hot-wet mining field | 10.1007/s10973-023-12220-2 |
2023-07-01 | Purpose Slender boring bars vibrate when excited by cutting forces to result in chatter. These chatter vibrations damage the part and the tool and hence must be avoided and/or suppressed. Usually, tuned absorbers integrated within the boring bar dissipate the motion of the boring bar and make stable cutting possible. H... | Damped Chatter Resistant Boring Bar Integrated with an Absorber Working in Conjunction with an Eddy Current Damper | 10.1007/s42417-022-00684-9 |
2023-07-01 | Purpose This article presents a novel approach for synthesizing the vibration isolation system that simultaneously considers the layout of the host structure, the distribution of free or constrained damping layers, and the positions of resilient mounts. Methods The topology optimization model is established by using mu... | Design Synthesis of Vibration Isolation System Considering Host Structure, Damping Layer, and Resilient Mounts | 10.1007/s42417-022-00686-7 |
2023-07-01 | Structures show inelastic non-linear behaviour under cyclic loads associated with natural activities like earthquakes and wind, which impart external kinetic energy to them, consuming the lateral movement of structures, such movement may be responsible for the failure or collapse of these structures. To prevent such a ... | Incremental dynamic analysis of building with weak storey at top as TMD | 10.1007/s42107-022-00559-0 |
2023-06-24 | The current study investigates the effect of viscosity of base oil and weight fraction of carbonyl iron particles on maximum yield stress and effective damping range of a short-stroke magnetorheological damper (stroke length of 2 mm) designed for tool vibration mitigation. It is difficult to find the exact composition ... | Determining the optimal composition of magnetorheological fluid for a short-stroke magnetorheological damper | 10.1007/s12046-023-02195-z |
2023-06-23 | In this paper, we consider optimal portfolio selection when the covariance matrix of the asset returns is rank-deficient. For this case, the original Markowitz’ problem does not have a unique solution. The possible solutions belong to either two subspaces namely the range- or nullspace of the covariance matrix. The for... | Portfolio Selection with a Rank-Deficient Covariance Matrix | 10.1007/s10614-023-10404-4 |
2023-06-22 | We consider the two-dimensional damped wave-type magnetohydrodynamic equations with fractional dissipation. We prove the global existence and uniqueness of solution for small initial data in Sobolev spaces. | Global existence and uniqueness of the 2D damped wave-type MHD equations | 10.1007/s00033-023-02042-5 |
2023-06-19 | In this paper, we study the forced flexural vibrations caused by time-harmonic concentrated loads on a transversely isotropic thin rectangular plate (TRP). A mathematical model has been formed using a new modified Green–Naghdi (GN) III theory of thermoelasticity by introducing higher-order memory-dependent derivatives ... | Study of a time-harmonic load on a Kirchhoff–Love plate with modified thermoelasticity theory using higher-order memory-dependent derivatives | 10.1007/s11043-023-09612-0 |
2023-06-19 | Mg-0.8Si alloy plates were rolled at high strain rates of 15, 20, and 25 s^−1, and the effects of the rolling strain rate on the microstructure, mechanical properties, and damping properties of the Mg-0.8Si alloy were studied. With the increasing strain rate, the area fraction of DRX in the HSRRed Mg-0.8Si alloy gradua... | Microstructures, Damping and Mechanical Properties of Mg-0.8Si Alloy under Different Rolling Strain Rates | 10.1007/s11665-023-08404-4 |
2023-06-17 | A novel second-order two-scale(SOTS) asymptotic analysis and computational approach are developed for solving the quadratic eigenvalue problem(QEP) in periodic composite domain. Two typical QEPs involving the velocity damping and the Rayleigh damping are considered and the asymptotic expansions for both the eigenfuncti... | Multiscale asymptotic analysis and algorithm for the quadratic eigenvalue problem in composite materials | 10.1007/s40314-023-02342-6 |
2023-06-17 | We consider a swelling porous-elastic system with frictional damping and viscoelastic damping acting simultaneously and complementarily in the domain and study the effect of such competition between the two types of damping on the asymptotic behavior of the energy function. Under nonrestrictive on the growth assumption... | Theoretical Decay Results of a Swelling Soils System with Frictional Damping Versus Viscoelastic Damping | 10.1007/s00009-023-02433-y |
2023-06-15 | In this work, damping properties of bending viscoelastic thin structures are enhanced by topology optimization. Homogeneous linear viscoelastic plates are optimized and compared when modeled by either the Kirchhoff–Love or Reissner–Mindlin plate theories as well as by the bulk 3D viscoelastic constitutive equations. Me... | Damping optimization of viscoelastic thin structures, application and analysis | 10.1007/s00158-023-03602-z |
2023-06-12 | Granular dampers are systems used to attenuate undesired vibrations produced by mechanical devices. They consist of cavities filled by granular particles. In this work, we consider a granular damper filled with a binary mixture of frictionless spherical particles of the same material but different size using numerical ... | Granular binary mixtures improve energy dissipation efficiency of granular dampers | 10.1007/s10035-023-01337-8 |
2023-06-03 | Eddy current dampers (ECD) have merits such as contactless damping, no need for lubrication and almost no maintenance; due to these advantages, ECD is suitable for the use of aerospace applications, and ECD may be preferred. This research article is focused on designing and developing an eddy current damper to provide ... | Modeling and development of eddy current damper for aerospace applications | 10.1007/s40435-023-01220-7 |
2023-06-01 | This study evaluated the dynamic properties of Pisa clay and Ticino sand (shear modulus and damping ratio) for a relatively wide range of consolidation pressures using the resonant column apparatus (RC), after which the results were simulated. The study aimed at the evaluation of the soil dynamic properties at very low... | Experimental and Simulation Study on Dynamic Properties of Two Historical Soils in Italy | 10.1007/s40999-022-00781-6 |
2023-06-01 | This paper presents recent developments towards efficient and reliable methods for roll damping estimation based on numerical simulations as well as model tests using the harmonic excited roll motion (HERM) technique. A newly designed automatic roll damping estimation procedure shows the advantage of a just-in-time pos... | Advances on numerical and experimental investigation of ship roll damping | 10.1007/s42241-023-0044-9 |
2023-06-01 | Purpose This study reports on shunt circuits enabled by low-cost, small-scale electronic circuitry and free software by combining piezoelectric materials and digital devices. This class of systems can be considered in many different vibrating problems, such as elastic and aeroelastic structures and metastructures, aimi... | Design and Experimental Validation of Linear and Nonlinear Digital Synthetic Impedances for Electromechanically Coupled Systems | 10.1007/s42417-022-00674-x |
2023-06-01 | In this paper, we study the following fractional damped vibration problems: $$\begin{aligned} \left\{ \begin{array}{ll} -_tD^{\alpha }_{\infty }(_{-\infty }D^{\alpha }_tu(t))+A(_{-\infty }D^{\alpha }_tu(t))-L(t)u(t)+\nabla W(t,u(t))=0,&{} \\ u\in H^{\alpha }({\mathbb {R}},{\mathbb {R}}^n).&{} \end{array} \right. \end{a... | On a class of fractional damped vibration problems | 10.1007/s41808-022-00188-3 |
2023-06-01 | Most dampers are designed for major earthquakes, while small earthquakes are likely to occur during the useful life cycle of buildings, and these smaller earthquakes may also damage structural and non-structural components; multi-level dampers are designed with a mechanism that works partly in minor earthquakes and par... | Evaluation of the seismic performance of structures equipped with novel multi-level TADAS dampers | 10.1007/s42107-022-00546-5 |
2023-06-01 | The motivation of this study stems from a retaining wall made of waste tires. The wall did not suffer any earthquake or tsunami-induced damage during the 2011 Off the Pacific Coast of Tohoku Earthquake, Japan. This paper deals with a case study on this tire retaining wall. Results from a series of field and laboratory ... | Performance evaluation of waste tires in protecting embankment against earthquake loading | 10.1007/s10518-023-01690-2 |
2023-06-01 | Abstract —The characteristics that confirm the positive effect of thermal barrier coatings on the rotor blades of gas turbine engines, which are made of ZhS6U, VZhL12U, and ZhS30M alloys, on the damping ability of the blades are presented. | Influence of Thermal Barrier Coatings on the Damping of GTE Turbine Blade Vibrations | 10.1134/S0036029523060010 |
2023-06-01 | The flexibility of the foundation system significantly affects the seismic and operational performance of integral abutment bridges (IAB). The so-called pile isolation system can lead to higher flexibility in pile foundations. It consists in backfilling the pile hole with high-damping materials up to a certain depth fr... | Probabilistic formulation for the q-factor of piles with damping pre-hole | 10.1007/s10518-022-01497-7 |
2023-06-01 | Abstract This paper concerns with the initial and boundary value problem for a p -biharmonic wave equation with logarithmic nonlinearity and damping terms. We establish the well-posedness of the global solution by combining Faedo–Galerkin approximation and the potential well method, and derive both the polynomial and e... | Well-Posedness and Asymptotic Behavior for the Dissipative p-Biharmonic Wave Equation with Logarithmic Nonlinearity and Damping Terms | 10.1134/S0965542523060192 |
2023-06-01 | Damping plays an important role in the middle ear (ME) sound transmission system. However, how to mechanically characterize the damping of ME soft tissues and the role of damping in ME sound transmission have not yet reached a consensus. In this paper, a finite element (FE) model of the partial external and ME of the h... | Characterization of middle ear soft tissue damping and its role in sound transmission | 10.1007/s10237-023-01696-4 |
2023-06-01 | The working conditions of construction machinery are frequently harsh. To prevent excessive impact from causing mechanical failure, the performance of viscoelastic suspensions typically requires improvement. However, the elevated performance also results in increased stress, which can drastically reduce the longevity a... | Structural Optimization of Damping Components of Viscoelastic Suspension Based on Preventing Failure Caused by Excessive Stress | 10.1007/s11668-023-01683-y |
2023-06-01 | Eucommia ulmoides gum (EUG) was a biobased hard rubber with the prospected broad applications in rubber products, whereas possessed poor elasticity and weak damping functionality at room temperature. After modification of EUG by triazolinedione-based Alder-ene reaction, the modified EUG containing varied amount of pola... | Unique Damping Properties of Modified Eucommia Ulmoides Gum Bearing Polar and Branched Pendants | 10.1007/s10118-023-2899-1 |
2023-06-01 | Purpose In this study, the effective damping coefficient of the fluid viscous dampers (FVDs) used for coupling two adjacent multi-story frames was investigated, considering soil-structure interaction (SSI) effects under seismic excitation. Methods A numerical procedure was employed to obtain the dynamic response of the... | Effective Damping Coefficient of Fluid Viscous Dampers for Dynamic Response Mitigation of Coupled Frames | 10.1007/s42417-022-00673-y |
2023-06-01 | Background Reduction in structure vibration by dampers during a defined time has attracted widespread attention in the aerospace and automobile industries. Therefore, the comparative study of curved panel structure vibration reduction is very important. Purpose This paper aims to study the damping effect of a curved pa... | Vibration Attenuation Study of Curved Panel Treated with Partially Constrained Composite Unaged and Aged NBR (Acrylonitrile–Butadiene Rubber) Elastomers | 10.1007/s42417-022-00657-y |
2023-06-01 | Purpose The objective of this paper is to investigate with simulations how non-linear spring and non-linear damper components of isolators can be employed to effectively reduce both the oscillations and the force transmitted to ground in the whole spinning range of unbalanced rotating machines. Methods The principal go... | Non-linear Isolator for Vibration and Force Transmission Control of Unbalanced Rotating Machines | 10.1007/s42417-022-00668-9 |
2023-06-01 | Geotechnical Seismic Isolation (GSI) can be defined as a new category of seismic isolation techniques that involve the dynamic interaction between the structural system and geo-materials. Whilst the mechanism of various GSI systems and their performance have already been demonstrated through different research methods,... | Analytical design models for geotechnical seismic isolation systems | 10.1007/s10518-022-01469-x |
2023-06-01 | Over the past years, multiple fire accidents have been witnessed in ancient wooden buildings around the world, thereby causing major losses of cultural relics and social impact. Because of the damage of the ancient wood structure caused by the problem of aging, this enables its thermal conduction properties to change. ... | Influence mechanism of dry and wet alternate aging on thermal property characteristics of wood | 10.1007/s10973-023-12015-5 |
2023-06-01 | In recent years, the importance of nanoparticles, which are high-tech products, has been increasing. Nanoparticles are used in many fields as well as in the field of composite materials. These materials are widely used in some areas such as materials and manufacturing, computer technologies, aerospace and military, env... | Investigation of Effect of Nanoparticle Reinforcement Woven Composite Materials on Fatigue Behaviors | 10.1007/s40997-022-00543-8 |
2023-06-01 | Purpose: The stability problem for non-conservative multi-parameter dynamical system is usually associated with labor-intensive calculations, and numerical methods do not always allow one to obtain the desired information. The presence of circulatory forces often leads to the so-called ”destabilization effect” of the s... | Analytical Scheme of Stability Analysis for 4-DoF Mechanical System Subjected to Friction-Induced Vibrations | 10.1007/s42417-022-00665-y |
2023-06-01 | Abstract The authors investigate geophysical parameters of water-saturated and frozen rock samples, and compare the results with the data of natural rocks. The samples were subjected to dynamic loading, an acceleration signal was recorded and a spectral density was calculated. On this basis, later on, the authors deter... | Acoustic Characteristics of Rock Samples under Negative Temperatures | 10.1134/S1062739123030201 |
2023-06-01 | Strain glass, a short-range strain-ordered state of martensitic/ferroelastic material, has drawn much interest in recent years due to its novel properties unattainable in martensitic materials. So far, typical or conventional strain glasses have been reported to be characterized by nano-sized martensitic domains formed... | Non-conventional Strain Glasses | 10.1007/s40830-023-00448-8 |
2023-06-01 | In this article, we studied the approximate analytical soliton solution of dust acoustic waves in the framework of damped Korteg–De Vries (DKdV) equation. Using the reductive perturbation technique, the evolution equation with additional damping term is derived from a collisional dusty plasma model. As the DKdV equatio... | Application of Adomian decomposition method to study collision effect in dusty plasma in the presence of polarization force | 10.1007/s12648-023-02588-0 |
2023-06-01 | In this paper, we prove the existence of a random exponential attractor (a positively invariant, compact, random set with finite fractal dimension that attracts any trajectory exponentially) for the 3D non-autonomous damped Navier–Stokes equation with additive noise, which implies that the asymptotic behavior of soluti... | Random Exponential Attractor for the 3D Non-autonomous Stochastic Damped Navier–Stokes Equation | 10.1007/s10884-021-09951-x |
2023-06-01 | Purpose The vibration resonance of a high-pressure rotor system is a research topic with a series of support structures and the elastic ring squeeze film damper (ERSFD). A dynamic equation with the multiple degrees of freedom rotor system was estimated for multi-support structures, the ERSFD, and the rotor. Semi-analyt... | Study on the Semi-numerical and Semi-analytical Solutions of the Dynamics Equation of an Aero-engine Rotor System with ERSFD | 10.1007/s42417-022-00650-5 |
2023-05-31 | In this paper, we consider the long time behavior for a coupled system on Riemannian manifold consisting of the plate equation and the wave equation with nonlocal weak damping, nonlocal anti-damping and critical nonlinearity. We obtain the existence of the global attractor for the coupled system by semi-group method an... | Global Attractor for a Coupled Wave and Plate Equation with Nonlocal Weak Damping on Riemannian Manifolds | 10.1007/s00245-023-09998-w |
2023-05-31 | In a Hilbert framework, for general convex differentiable optimization, we consider accelerated gradient dynamics combining Tikhonov regularization with Hessian-driven damping. The temporal discretization of these dynamics leads to a new class of first-order optimization algorithms with favorable properties. The Tikhon... | Accelerated Gradient Methods Combining Tikhonov Regularization with Geometric Damping Driven by the Hessian | 10.1007/s00245-023-09997-x |
2023-05-31 | This paper studies a Balakrishnan–Taylor viscoelastic wave equation with strong time-dependent delay. Under suitable assumptions on the coefficients of the delay term, we establish a generalized stability result, which improve some earlier results in the literature. | Uniform stability of a strong time-delayed viscoelastic system with Balakrishnan–Taylor damping | 10.1186/s13661-023-01749-8 |
2023-05-31 | In this work, we approach the minimization of a continuously differentiable convex function under linear equality constraints by a second-order dynamical system with an asymptotically vanishing damping term. The system under consideration is a time rescaled version of another system previously found in the literature. ... | Time Rescaling of a Primal-Dual Dynamical System with Asymptotically Vanishing Damping | 10.1007/s00245-023-09999-9 |
2023-05-30 | This paper presents an output feedback based Variable Structure Controller (VSC) is described for a series vectorial compensator (SVeC) in order to enhance the dynamic stability of electric power system. The input to the VSC is speed deviation and it is employed to design the switching surface of the proposed VSC. SVeC... | Design of an output feedback variable structure series vectorial compensator to enhance dynamic stability | 10.1007/s40435-023-01183-9 |
2023-05-30 | Excellent damping characteristics and effective control strategy are important guarantees for semi-active suspension systems to give vehicles excellent driving performance. Based on the theoretical and experimental analysis of the damping characteristics, this study applies continuous damping control (CDC) shock absorb... | Vibration analysis and control of semi-active suspension system based on continuous damping control shock absorber | 10.1007/s40430-023-04183-0 |
2023-05-26 | It is well-known that a second-order ODE system admits a general matrix form of notation. In this work, we study general relations between system stability/robustness properties and special kinds of matrix stabilities, such as D - and diagonal stability. Basing on these concepts, we provide new stability conditions for... | Novel Versions of D-Stability in Matrices Provide New Insights into ODE Dynamics | 10.1007/s00009-023-02434-x |
2023-05-25 | It has been confirmed that structures with micro dimensions display size-dependent thermomechanical behaviors. Moreover, according to the findings of empirical and theoretical researches, thermoelastic damping (TED) has been recognized as one of inescapable causes of energy dissipation in microstructures. The current a... | Couple stress-based thermoelastic damping in microrings with rectangular cross section according to Moore–Gibson–Thompson heat equation | 10.1007/s43452-023-00694-8 |
2023-05-24 | An improved time-marching procedure based on a composite explicit method is proposed for non-viscous damping systems. In this method, an improved integral approximation scheme is developed to improve the convolution solution accuracy and is applicable to any causal kernel function. The mathematical derivation and calcu... | A time-marching procedure based on a sub-step explicit time integration scheme for non-viscous damping systems | 10.1007/s00366-023-01838-3 |
2023-05-23 | In this study, we investigate the nonlinear dynamics of solitary waves in saturated ferromagnetic materials with an external field of zero conductivity. Here, we talk about how damping mechanisms affect the Kraenkel–Manna–Merle system, which controls wave propagation and expresses nonlinear ultra-short wave pulse movem... | Dynamics of diverse wave propagation to integrable Kraenkel–Manna–Merle system under zero damping effect in ferrites materials | 10.1007/s11082-023-04879-6 |
2023-05-19 | A particle damper (PD) is an enclosure partially filled with small particles that can help to dampen the vibration of a structure. Despite its simplicity, the reliable prediction of the behavior of such a device in arbitrary operative conditions appears to be very difficult due to the complex non-linear interactions be... | An open-access database for the assessment of particle damper simulation tools | 10.1007/s10035-023-01333-y |
2023-05-18 | This work is devoted to presenting Massera-type theorems for the Kawahara system, a higher-order dispersive equation, posed in a bounded domain. Precisely, thanks to some properties of the semigroup and the decay of the solutions of this equation, we can prove its solutions are periodic, quasi-periodic, and almost peri... | Massera’s Theorems for a Higher Order Dispersive System | 10.1007/s10440-023-00575-5 |
2023-05-17 | Purpose The signum function is highly non-linear and discontinuous in nature, hence obtaining a closed-form solution is extremely difficult. The available analytical solution by Den Hartog gives a piece-wise continuous solution but is not applicable for initial velocity conditions. The purpose of this work is to provid... | Krylov–Bogolyubov Averaging Method-Based Analytical Solution of an Unforced Nonlinear Coulomb Damped Oscillator | 10.1007/s42417-023-00985-7 |
2023-05-15 | In this paper we study the long-time dynamics of elasticity-viscoporosity system consisting of two coupled hyperbolic equations with nonlinear dissipation. The first equation of the system is vectorial while the second is scalar. By considering nonlinear dampings and sources of critical exponents, we establish the exis... | Quasi-stability and smooth global attractors for a elasticity-viscoporosity system with nonlinear damping and source of critical exponents | 10.1007/s00030-023-00861-z |
2023-05-15 | The magnetorheological damper (MRD) is a smart damper that can produce a wide range of damping forces with respect to the different current supply. The said damper contains magnetorheological fluid (MRF), whose property helped to achieve controlled viscous force that enables to attenuate the system’s vibration. This pa... | Augmentation of damping force by modifying the geometrical shape of the MR damper | 10.1007/s40430-023-04243-5 |
2023-05-10 | In this paper, opening characteristics of a pneumatically operated valve and methodology for controlling the valve opening duration have been investigated through numerical simulation. The valve has a poppet mounted with spring which is actuated by a pneumatic command pressure to provide a displacement of 30 mm in full... | Control of opening duration in a pneumatically operated valve with two-fluid combination and quadratic damping | 10.1186/s44147-023-00207-7 |
2023-05-08 | A constitutive model is developed to efficiently capture the nonlinear hysteretic properties of a new type of high-damping metal wire mesh (HDMWM). In the HDMWM, the metal wire mesh is woven with multi-strand twisted wires in a certain regularity. In the quasi-static test, six batches of metal wire mesh (MWM) and HDMWM... | Research on Mechanical Properties and Constitutive Model of High-Damping Metal Wire Mesh | 10.1007/s11665-023-08169-w |
2023-05-01 | The power system industry is one of the pioneers in implementing machine learning (ML) methods which have acquired a lot of attention across various facets of contemporary life. Low-frequency oscillation (LFO) is purportedly a non-threatened but slowly poisoning concern with electrical power networks that, if not adequ... | Real-Time Solution of PSS Parameter Tuning by GA-ANFIS in Stabilizing the Electrical Power System | 10.1007/s13369-023-07666-3 |
2023-05-01 | The paper proposes and develops new globally convergent algorithms of the generalized damped Newton type for solving important classes of nonsmooth optimization problems. These algorithms are based on the theory and calculations of second-order subdifferentials of nonsmooth functions with employing the machinery of sec... | Generalized damped Newton algorithms in nonsmooth optimization via second-order subdifferentials | 10.1007/s10898-022-01248-7 |
2023-05-01 | In order to demonstrate the relevance of considering Vortex-Induced Vibrations (VIV) in the structural design of marine structures, this study proposes an alternative experimental and analytical approach in wet conditions to measure the fluid–structure interaction in the near field and quantify the viscous damping with... | Vortex-induced vibration effect of extreme sea states over the structural dynamics of a scaled monopile offshore wind turbine | 10.1007/s40722-022-00272-9 |
2023-05-01 | Optimizing the mechanical properties and damping capacity of the duplex-structured Mg-Li-Zn-Mn alloy by tailoring the microstructure via hot extrusion was investigated. The results show that the Mg-8Li-4Zn-1Mn alloy is mainly composed of α-Mg, β-Li, Mg-Li-Zn, and Mn phases. The microstructure of the test alloy is refin... | Optimization on microstructure, mechanical properties and damping capacities of duplex structured Mg-8Li-4Zn-1Mn alloys | 10.1007/s12613-022-2572-7 |
2023-05-01 | The present work aims at studying the damping response of a NiTi auxetic structure fabricated through additive manufacturing. Furthermore, an electropolishing route has been accounted for improving the roughness on the external surface of the printed samples. The damping capacity of the manufactured auxetic NiTi compon... | Damping property of a NiTi auxetic structure fabricated through selective laser melting | 10.1007/s00170-023-11106-9 |
2023-05-01 | An integral nonlocal stress gradient viscoelastic model is proposed on the basis of the integral nonlocal stress gradient model and the standard viscoelastic model, and is utilized to investigate the free damping vibration analysis of the viscoelastic Bernoulli-Euler microbeams in thermal environment. Hamilton’s princi... | Nonlocal stress gradient formulation for damping vibration analysis of viscoelastic microbeam in thermal environment | 10.1007/s10483-023-2981-7 |
2023-05-01 | The implementation of the nonlinear tuned vibration absorber (NLTVA) for the suppression of shimmy vibration in towed wheels is addressed in this study. We adopt a modified straight tangent tyre model of a single-degree-of-freedom towed wheel system with an attached NLTVA. Stability analysis illustrated that the NLTVA ... | Towed wheel shimmy suppression through a nonlinear tuned vibration absorber | 10.1007/s11071-023-08314-z |
2023-05-01 | The main goal of this research was to develop highly durable, low-cost eco-friendly biocomposites from apricot kernel shell ( AKS ) wastes and ultrasonic characterization of AKS -based obtained biocomposites. Natural AKS wastes were chemically modified using 5 wt% sodium hydroxide ( NaOH ) and 99 wt% glacial acetic aci... | Characterization of unmodified and modified apricot kernel shell/epoxy resin biocomposites by ultrasonic wave velocities | 10.1007/s00289-022-04328-6 |
2023-05-01 | The challenges of providing national metrological organizations with category 1 working standards are considered with regard to the current needs in the field of reference ultrasonic measurement in solids. An upgraded reference installation is presented for performing precise measurements of the propagation velocities ... | Reference Installation for Complex Measurements of the Acoustic Parameters of Solids | 10.1007/s11018-023-02201-0 |
2023-05-01 | A new type of torsional metallic damper was proposed. The restraint device, loading control component, energy dissipating metallic tube, rotating arm and pin bearing were composed the proposed damper. A total of six specimens were fabricated. The quasi-static low-cycle reciprocating loading tests were carried out, whil... | Experimental Research and Theoretical Analysis of Mechanical Behavior of Torsional Metallic Damper | 10.1007/s40999-023-00818-4 |
2023-05-01 | High-speed locomotives are prone to carbody or bogie hunting when the wheel-rail contact conicity is excessively low or high. This can cause negative impacts on vehicle dynamics performance. This study presents four types of typical yaw damper layouts for a high-speed locomotive (Bo-Bo) and compares, by using the multi... | Influence of yaw damper layouts on locomotive lateral dynamics performance: Pareto optimization and parameter analysis | 10.1631/jzus.A2200374 |
2023-04-29 | Fretting wear phenomena arise when the tube collides with an intermediate support plate (ISP) under flow-induced vibrations and these vibrations can cause severe damage to the heat exchanger tubes. So, it is important to perform wear scar analysis of tubes to understand wear trends that lead to failure. This experiment... | Fretting Wear Analysis of Flexible Vibrating Tube Interacting with the Support Plate in Low-Speed Water Tunnel | 10.1007/s42417-023-00987-5 |
2023-04-25 | Abstract During 2017–2019, a temporary seismic network of fifty-five 3-component broadband seismometers was installed by CSIR-NGRI, Hyderabad, Telangana, in the Uttarakhand Himalayan region, India. We used digital waveform data of 21 local earthquakes of M _w 2.9–4.3 from nineteen 3-component broadband seismic stations... | Modelling of earthquake source parameters and scaling relations in the Uttarakhand Himalayan region, India | 10.1007/s12040-023-02082-5 |
2023-04-19 | Emerging sub-synchronous interactions (SSI) in wind-integrated power systems have added intense attention after numerous incidents in the US and China due to the involvement of series compensated transmission lines and power electronics devices. SSI phenomenon occurs when two power system elements exchange energy below... | Review of sub-synchronous interaction in wind integrated power systems: classification, challenges, and mitigation techniques | 10.1186/s41601-023-00291-0 |
2023-04-18 | An accelerometer is a transducer that, on its own or in conjunction with electronics, instantly transmits an electrical signal corresponding to the force applied to its base. To measure vibrations with a capacitive accelerometer, it is important to know its accuracy, exact sensitivity, and reliability but sometimes the... | A capacitive sensor with high measurement accuracy and low electrical energy consumption | 10.1007/s00339-023-06644-8 |
2023-04-17 | In this paper, we consider a viscoelastic Petrovsky equation with localised nonlinear damping in bounded domain. The nonlinear damping is effective only in a neighborhood of a suitable subset of the boundary. Using the Faedo–Galerkin approximations together with some energy estimates, we prove the global existence of t... | Well-posedness and stability for a viscoelastic Petrovsky equation with a localized nonlinear damping | 10.1007/s40324-023-00325-5 |
2023-04-17 | The friction judder characteristics during clutch engagement have a significant influence on the NVH of a driveline. In this research, the judder characteristics of automobile clutch friction materials and experimental verification are studied. First, considering the stick-slip phenomenon in the clutch engagement proce... | Study of the Judder Characteristics of Friction Material for an Automobile Clutch and Test Verification | 10.1186/s10033-023-00864-y |
2023-04-15 | Soils contaminated with hydrocarbons is a repetitive site condition that may occur at locations adjacent to underground fuel tanks and other facilities. The main purpose of this study is to characterize and assess possibilities of reusing contaminated soil in useful applications such as roadway embankments. Accordingly... | Controlled diesel-mixed soils for roadway embankments: laboratory and ultrasonic characterization | 10.1007/s12517-023-11397-y |
2023-04-06 | Shell folded footings have drawn the interest of researchers for decades as an alternative to typical flat isolated footings because folded footings can reduce the needed amount of reinforced concrete in addition to enhancing the overall geotechnical performance of the supporting soil medium. The main setback of utiliz... | Shell folded footings using different angles and EPS cavity filling: experimental study | 10.1186/s40703-023-00187-w |
2023-04-04 | We study the mathematical theory of second order systems with two species, arising in the dynamics of interacting particles subject to linear damping, to nonlocal forces and to external ones, and resulting into a nonlocal version of the compressible Euler system with linear damping. Our results are limited to the 1 spa... | Second Order Two-Species Systems with Nonlocal Interactions: Existence and Large Damping Limits | 10.1007/s10440-023-00564-8 |
2023-04-04 | This paper is concerned with the blow-up of solutions to the initial boundary value problem for the wave equation with scale invariant damping term on the exterior domain, where the nonlinear terms are power nonlinearity | u | p $|u|^{p} $ , derivative nonlinearity | u t | p $|u_{t}|^{p} $ and combined nonlinearities |... | Blow-up of solutions to the semilinear wave equation with scale invariant damping on exterior domain | 10.1186/s13661-023-01722-5 |
2023-04-01 | In this article, we study the Cauchy problem for a weakly coupled system of semi-linear wave equations with different structural damping terms. The main goal is to find the threshold, which classifies the existence of small data global (in time) solutions or the nonexistence of global solutions under the growth conditi... | Existence and Nonexistence of Global Solutions for a Wave System with Different Structural Damping Terms | 10.1007/s10013-021-00517-4 |
2023-04-01 | Flank face chamfers are an effective way to suppress vibrations and increase the productivity of milling processes. The underlying process damping mechanism is the so-called indentation effect. The effect describes the process damping as a result of an additional force due to the indentation of workpiece material under... | Identification of the process damping coefficient in dry and wet machining of steel | 10.1007/s00170-023-11082-0 |
2023-04-01 | Power System Oscillations followed by transient effects, adversely affects the stability in interconnected Power systems. This issue can be addressed using power oscillation damping controllers (PODC). For dynamic systems with varying system conditions, a robust PODC is required, which adjust the parameters as the syst... | Grey wolf optimization based fractional order PID controller in SSSC on damping low frequency oscillation in interconnected multi-machine power system | 10.1007/s41870-023-01253-3 |
2023-04-01 | In this paper, a grid impedance estimation procedure based on the injection of active and reactive powers through a grid-tied inverter is proposed. The estimation is based on Newton–Raphson algorithm acting on the phasors of the voltages and currents at the point of common coupling between the inverter and the grid. Un... | A Grid Impedance Estimation Method Robust Against Grid Voltages Unbalance and Harmonic Distortions | 10.1007/s40313-022-00963-6 |
2023-04-01 | It is a crucial requirement for structure-damping materials to attain both stiffness and damping; unfortunately, the two properties are usually mutually exclusive. This study interestingly demonstrates that introducing Ni atoms into the interface of carbon nanotube (CNT) reinforced aluminum-matrix composites can defeat... | Damping of aluminum-matrix composite reinforced by carbon nanotube: Multiscale modeling and characteristics | 10.1007/s11431-022-2297-3 |
2023-04-01 | The nonlinear behavior of sabkha soil was investigated in two stages. In the first stage, a physical model representing a vibrating foundation resting on cement-stabilized sabkha soil overlying saturated and untreated sabkha soil was developed. The cement-stabilized sabkha soil samples used in the study contained 5 and... | Vibrating Behavior of Foundations Resting on Salt-Encrusted Flat (Sabkha) Soil Improved Using Cement | 10.1007/s13369-022-07382-4 |
2023-04-01 | This manuscript aims to enhance vehicle stability and ride comfort. The long-term vibration from the uneven road surface affects the stability of the vehicle, the rider’s safety, health and comfort. The resonance between the excitation and the vehicle cannot be avoided by conventional MR suspension without stiffness co... | Dynamic analysis of quarter car model with semi-active suspension based on combination of magneto-rheological materials | 10.1007/s40435-022-01024-1 |
2023-04-01 | Herein, we report the theoretical investigation to understand the role of size-dependent damping (SDD) due to electron–surface scattering on the Al nanoparticle-based deep ultraviolet surface-enhanced fluorescence. First, the absorption spectra and electric field enhancement (EFE) inside and outside Al nanoparticles of... | Role of Size-Dependent Damping Due to Electron–Surface Scattering on the Al Nanoparticle-Based Deep Ultraviolet Surface-Enhanced Fluorescence | 10.1007/s11468-023-01805-0 |
2023-04-01 | Purpose The purpose of the current study is to enable an economical use of the existing mass of an overhead water tank for effective control of the building vibrations under lateral excitation, without hampering the tank’s primary functionality. Methods A practically feasible mechanism is developed that adjusts the sti... | Adaptive Design of an Overhead Water Tank as Dynamic Vibration Absorber for Buildings by Use of a Stiffness-Varying Support Arrangement | 10.1007/s42417-022-00611-y |
2023-04-01 | Background The direct-drive linear motor system is usually a low-damping system, which will cause residual vibration and deteriorate the accuracy of the equipment especially in the high-speed start-stop motion. Purpose By employing an eddy current damper (ECD), the residual vibration can be effectively reduced. However... | A Dual-Sided Hybrid Excitation Eddy Current Damper with High-Conductivity and High-Permeability Secondary Plate for Vibration Suppression Enhancement | 10.1007/s42417-022-00638-1 |
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