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2022-01-01 | Vibration reduction is a phenomenon that is used to obtain the stability of a member subjected to various loadings. The objective to be fulfilled in this research process is to attain the dynamic stability of the components. Beams used in any machine or mechanism are simple structural members. Structures build in layer... | Identification of Damping in Sandwich Beam | 10.1007/978-981-16-2900-6_2 |
2022-01-01 | Owing to superior mechanical properties of fiber reinforced polymer (FRP) composites, they are employed in various structural and automobile applications. Though many researchers explored various FRP composites, it is indeed need of hour to find eco-friendlier composites for contemporary modern usages. Therefore, manuf... | Dynamic Mechanical Analysis of Silane Treated Groundnut Shell Particles Filled Jute/Epoxy Hybrid Composites | 10.1007/978-981-19-0244-4_102 |
2022-01-01 | Inverters are the power electronic devices which convert DC voltage to required AC. A simple conventional voltage source inverter has three levels of output, i.e., positive, negative, and zero while a multilevel inverter which is an advanced inverter generates a near-sinusoidal desired output voltage from several level... | Analysis of Control Techniques and Filter Design of Multilevel Inverter | 10.1007/978-981-16-6879-1_56 |
2022-01-01 | Due to their long and slim geometry, single-lip deep hole drills have a high level of flexibility, especially in the radial and tangential direction. This leads to torsional and chatter vibrations, respectively, especially at high feed rates. In this paper, the conventionally brazed connection between the shaft and the... | Investigation of Single-Lip Deep Hole Drilling Tools with Adhesively Bonded Joints in the Context of Practical Conditions | 10.1007/978-3-030-78424-9_35 |
2022-01-01 | The issues of assessing the dynamic properties of structural formations were considered in a number of works; interesting results were obtained, which predetermined the interest in assessing the features of dynamic interactions, when structural formations are included in the structure of real systems interacting with t... | System Representations of Dynamics of Mechanical Oscillatory Structures Based on Frequency Function and Damping Function | 10.1007/978-981-16-2814-6_29 |
2022-01-01 | Flexural vibrations of a cantilever beam in a viscous incompressible fluid near a plane boundary are considered. On the basis of three-dimensional numerical modeling, the study of hydrodynamic forces acting on the beam is carried out. The results of the study describe the changes of hydrodynamics around the beams occur... | Nonlinear Hydrodynamic Damping of Elastic Vibrations of Beams Near a Plane Boundary | 10.1007/978-3-030-81162-4_8 |
2022-01-01 | A new method used to evaluate the performance of the lathe tool is proposed and optimal thickness of the damping layer is obtained through optimization analysis. FEA model is built as well to verify its feasibility. A serial of experiments are conducted, from the aspects of power spectrum, cutting force, surface smooth... | Dynamic and Experimental Study of Lathe Tool with High Damping Alloy Layer | 10.1007/978-981-16-7381-8_2 |
2022-01-01 | This work is devoted to studying the damping behavior of rotating functionally graded (FG) laminated cylindrical shells undergoing active constrained layer damping (ACLD) treatment comprising of viscoelastic layer sandwiched between the 1–3 piezoelectric composite (PZC) smart layer and host shell. FG cylindrical shells... | Smart Damping of Rotating Functionally Graded Laminated Composite Cylindrical Shells Using 1–3 Piezoelectric Composites | 10.1007/978-981-16-6738-1_46 |
2022-01-01 | Structures are subjected to various types of loading conditions such as earthquake, wind loads, etc. For structures in earthquake zones, they are designed to resist seismic forces. Earthquake is one of the greatest catastrophic threats to humankind and other living creatures as well as properties by nature. It is impos... | Seismic Response Control of RCC Building Using Dampers | 10.1007/978-981-16-6879-1_11 |
2022-01-01 | This chapter studies the control schemes Control scheme of reducing the second harmonic current Second harmonic current (SHC) for the two-stage Two-stage single-phase Single-phase photovoltaic Photovoltaic (PV) grid-connected inverter where the front-end dc-dc converter DC-DC converter is operated as a bus-current cont... | Second Harmonic Current Reduction for Two-Stage Single-Phase Inverter with Front-End Bus-Current Controlled Converter | 10.1007/978-981-19-1547-5_6 |
2022-01-01 | Dynamic Monitoring System (DMS) and Signal matching analysis is widely used in the offshore industry to validate the axial capacity of foundation piles. While the uniqueness of the signal matching solution is still being discussed (Buckley et. al. 2017 ), field experience highlights that an accurate choice of the dampi... | Estimation of Damping Factors for a Better Assessment of Offshore Driven Piles Capacity | 10.1007/978-981-16-7735-9_8 |
2022-01-01 | This work is aimed at improving the technology of descent of spacecraft to the surface of planets covered with atmosphere. This paper proposes to use inflatable braking devices for landing on the planet’s surface. These inflatable brakes help to reduce the approach speed to the surface to an acceptable level. A feature... | Study of the Movement of the Descent Vehicle with an Inflatable Device Made of a Special Material Taking into Account the Arising Asymmetry | 10.1007/978-981-16-9632-9_5 |
2022-01-01 | The article explores the passive method for damping wind auto-oscillations of an aboveground gas pipeline. The method consists in installing a vibration damping device in one of the spans, which operates on the principle of one-way connection. This characterizes the system as structurally non-linear. Integration of the... | Vibrations of a Constructively Nonlinear System with One-Way Connections | 10.1007/978-3-030-91145-4_3 |
2022-01-01 | The damping systems design is a fundamental feature in a crutch because it decreases the forces in the upper members of the users and consequently reduces the chance of eventual injuries coming up. However, the damping system present in the currently marketable crutches cause discomfort to their users. Thus, the main o... | The Damping System in Crutches: Development of New Model | 10.1007/978-3-030-79165-0_35 |
2022-01-01 | Energy dissipation capacity and seismic performance of steel moment resisting frame with hybrid damping system along with buckling restrained brace is investigated and an innovative approach of design of energy dissipating system is recommended. The nine storied structure is analyzed by nonlinear time history analyses ... | Evaluation of Role of Hybrid Damping System in Seismic Assessment | 10.1007/978-3-031-04793-0_32 |
2022-01-01 | The article is concerned with the effect of linear and cubic non-linear damping of an elastic bearing on forced resonant vibrations of a gyroscopic vertical rigid rotor taking into account non-linear stiffness of the cubic nature of the bearing material. It is confirmed that non-linear cubic damping of the support can ... | Unsteady Resonant Oscillations of a Gyroscopic Rigid Rotor with Non-linear Damping and Non-linear Rigidity of the Elastic Support | 10.1007/978-3-030-83594-1_9 |
2022-01-01 | Due to the many irregularities and speed humps present on the roads, the conventional passive suspension system fails to provide the most comfortable ride possible. The following work proposes the use of an active suspension system to achieve a more comfortable ride. An active suspension system refers to varying the su... | Modeling and Analysis of Active Suspension System | 10.1007/978-981-16-6490-8_47 |
2022-01-01 | A zig-zag 1–3 viscoelastic composite (VEC) layer is designed for improved passive damping treatment of the vibrating structural beam. A zig-zag 1–3 VEC comprises by incorporating graphite blocks in zig-zag manner within the conventional viscoelastic material (VEM) layer. For the estimation of its damping capacity in th... | Design of Zig-Zag 1–3 Viscoelastic Composite Layer for the Improved Passive Damping Treatment of Beam | 10.1007/978-981-16-2794-1_17 |
2022-01-01 | The article is concerned with the effect of nonlinear cubic damping of an elastic support on unsteady resonant vibrations of a gyroscopic rigid rotor when interacting with a non-ideal energy source. It is confirmed that nonlinear cubic damping can suppress not only the maximum amplitude, but also the amplitude of unste... | Nonstationary Resonant Oscillations of a Gyroscopic Rigid Rotor with Nonlinear Damping and Non-ideal Energy Source | 10.1007/978-3-030-91892-7_72 |
2022-01-01 | Use of high damping rubber bearings (HDRBs) in seismic isolation is a viable practice to protect bridges from earthquakes. The behavior of HDRB under cyclic load is dominated by nonlinear rate-dependent elasto-plastic responses and low temperatures. Rate-dependency effect due to viscosity depends strongly on the curren... | Dynamic Performance of Highway Bridges: Low Temperature Effect and Modeling Effect of High Damping Rubber Bearings | 10.1007/978-981-16-3239-6_36 |
2022-01-01 | Purpose The full damping treatments have been widely used in many fields for structural vibration and noise reduction. Compared to the partial damping treatments, the full damping treatments have not significantly enhanced the effect of vibration reductions. It is essential to find the optimal damping treatments in lig... | Topology Optimization of Plates with Constrained Layer Damping Treatments Using a Modified Guide-Weight Method | 10.1007/s42417-021-00361-3 |
2022-01-01 | A simple yet useful construction of a system comprising of a “second-order control system” attached to an “SSB-SC amplitude modulator”. Using the basic concepts of both, the latter can be controlled externally as a result of simple mathematical relationships established between the defining parameters of the two. These... | Controlling an SSB-SC Amplitude Modulator Using a Second-Order Control System | 10.1007/978-981-16-1476-7_44 |
2022-01-01 | An analytical study on a true negative stiffness damper (NSD) in the form of negative stiffness amplifying damper (NSAD) is presented. NSD proposed in this study for controlled base isolator displacement uses damping magnification effect that guarantees the efficient reduction in base displacement and inter-storey drif... | Optimal Design of True Negative Stiffness Damper as a Supplemental Damping Device for Base-Isolated Structure | 10.1007/978-981-16-7397-9_34 |
2022-01-01 | The model of rate-dependent mechanical behavior for the damping rubber material is proposed based on Petiteau’s time convolution integral model in terms of the K-BKZ model and Xiang’s constitutive model to characterize the hyperelastic response under various deformation states. Furthermore, the specimen of PVMQ with di... | Characterization of the Rate-Dependent Behavior of Phenyl Silicone Rubber | 10.1007/978-981-16-7423-5_4 |
2022-01-01 | In this paper we consider a quasilinear Cauchy problem for the scale invariant damped wave equation v t t − Δ v + μ ( 1 + t ) v t + μ 2 μ 2 − 1 v ( 1 + t ) 2 = μ 2 ( 1 + t ) v + v t p , $$\displaystyle v_{tt}-\Delta v+\frac {\mu }{(1+t)}v_t+\frac {\mu }{2} \left (\frac {\mu }{2}-1 \right )\frac {v}{(1+t)^2} =\left | \f... | Lifespan Estimates for a Special Quasilinear Time-Dependent Damped Wave Equation | 10.1007/978-3-030-87502-2_61 |
2022-01-01 | This study develops displacement- and kinetic energy-based tuning methods for the design of the tuned inerter dampers (TIDs) coupled to both linear and nonlinear primary systems. For the linear primary system, the design of the TID is obtained analytically. The steady-state frequency–response relationship of the nonlin... | Tuning methods for tuned inerter dampers coupled to nonlinear primary systems | 10.1007/s11071-021-07112-9 |
2022-01-01 | Technological advancements in the field of transport and mobility are numerous with advancements and improvements in every possible scope. The subsystems of vehicles are a constant area of research for improvement, by the fact a new development in the field of magnetorheological fluid dampers has been proposed in publi... | Sales Forecast and Layout Analysis of a Damper Manufacturing Industry for Autonomous Transport | 10.1007/978-3-030-94774-3_39 |
2022-01-01 | It would be economical if the overhead water tank (OWT), a common component of any conventional building structure, is designed to act as a passive tuned liquid damper (TLD) for vibration control of the primary structure under lateral excitations. However, the fluctuation in water height due to functional requirements ... | Design of Overhead Water Tank with Floating Base for Utilization as Tuned Liquid Damper Against Lateral Excitation | 10.1007/978-981-16-6490-8_54 |
2022-01-01 | The seat is the device that minimize the vibration transmitted to the tractor driver’s body by the tractor platform. All seats for agricultural machines require homologation before their installation on the machine, in accordance with the Council Directive 78/764/EEC (Annex XIV), amended with the Delegated Regulation 1... | Dynamic Characteristics of the Seats Equipping Old Agricultural Tractors | 10.1007/978-3-030-98092-4_23 |
2022-01-01 | For the preservation of historic architecture, historic building structures in areas prone to seismic excitations should have sufficient aseismic performance. A useful approach for enhancing the aseismic performance of historic buildings is aseismic retrofitting, where energy dissipation elements, such as frictional de... | Response Simulation of Aseismic Retrofit for a Reinforced Concrete Historic Building Structure Using a Variable Friction Damper | 10.1007/978-3-030-90788-4_19 |
2022-01-01 | Taking the stabilized platform with viscous fluid damper of balloon radar as the research object, the mechanical balance model and multi-body dynamics simulation model of the stabilized platform are established comprehensively, considering the pitch angle, roll angle of the balloon, damper damping coefficient and gravi... | Research on the Stability of Stabilized Platform for Balloon Radar | 10.1007/978-981-19-1309-9_9 |
2022-01-01 | Seismic fragility, loss and resilience provide a rational basis for decision making in new construction/retrofitting. The inter-storey-isolation (ISI) is a relatively recent seismic vibration control technology for taller buildings. The isolation bearings are placed at an intermediate storey to isolate the upper storey... | Implications of inter-storey-isolation (ISI) on seismic fragility, loss and resilience of buildings subjected to near fault ground motions | 10.1007/s10518-021-01277-9 |
2022-01-01 | This paper presents a novel energy-harvesting shock absorber for a vehicle to provide the required damping function to reduce the vibration between the vehicle and the road, as well as to reclaim vibration energy from the automotive suspension system during driving. The energy-harvesting shock absorber consists of a tr... | Design of an Energy Harvesting Shock Absorber for Vehicle | 10.1007/978-3-030-99666-6_49 |
2022-01-01 | This study aims at design and hysteresis modeling of a novel damper featuring shape memory alloy (SMA) to mitigate structural vibrations. The damper consists of SMA springs for actuation and a wedge mechanism to amplify and convert the actuating force into friction against the inner cylindrical face of the damper housi... | Design and Hysteresis Modeling of a New Damper Featuring Shape Memory Alloy Actuator and Wedge Mechanism | 10.1007/978-981-16-3239-6_10 |
2022-01-01 | Magnetorheological (MR) damper is an effective semi-active vibration actuator which can produce controllable damping force by supplying proper voltage or electrical current as an input. By altering the input, the behaviour of MR fluid will change accordingly from free flow to semi-solid state. A semi-active suspension ... | Magnetorheological Damper Control for Semi-active Suspension System Using Skyhook-Differential Evolution | 10.1007/978-981-33-4597-3_16 |
2022-01-01 | In order to enhance the safety of the aircraft’s take-off and landing process, it is necessary to control the shimmy phenomenon of the aircraft wheel. In this situation, the magnetor-rheological damper is used to reduce the wheel shimmy, several years. This paper, firstly, builds the model of the aircraft landing gear ... | Study on Magneto-rheological Damper Control of Aircraft Landing Gear Based on LADRC | 10.1007/978-981-16-6328-4_83 |
2022-01-01 | Radial stiffness of flexible ring dampers used in rotor supports is analyzed in this paper. Two major approaches are proposed for this purpose. The first is the conventional finite element modeling of this contact mechanics problem. The second is an analytical method that can be used as alternative to the costly numeri... | Numerical and Analytical Analysis Methods for Radial Response of Flexible Ring Dampers | 10.1007/978-3-030-88465-9_49 |
2022-01-01 | The article dwells upon the study of the properties of a passive vibration isolation system with a nonlinear characteristic of a controlled damper. The existing problems in the field of research and the objectives of the research are indicated. As an actuator, a magnetorheological vibration damper is used, the design o... | Research of a Nonlinear Vibration Isolation System with a Controlled Magnetorheological Damper | 10.1007/978-3-030-85233-7_90 |
2022-01-01 | In recent days, the safety and serviceability of bridges are increasingly being affected by high-speed and heavy moving vehicles due to the construction of more slender and light structures. Though tuned mass dampers (TMDs) offer a very desirable solution to the vibration problem of a bridge, high TMD effectiveness gen... | A Comparative Study on the Vibration Control of a Bridge Under Moving Springing Mass by TMD and TMDI | 10.1007/978-981-16-6490-8_53 |
2022-01-01 | Although Independently Rotating Wheels (IRW) meet the low-floor height requirements of the Light Rail Transit systems, its self-centering and self-steering moments resulting from the longitudinal creep forces are small to maneuver sharp curves due to the lack of a rigid rotational speed coupling between its wheels. Whi... | Utilisation of Gyroscopic Damper to Improve Dynamic Stability and Steering in a Railway Vehicle with Independently Rotating Wheels | 10.1007/978-3-031-07305-2_40 |
2022-01-01 | The automotive industry has started to show interest in harvesting energy from the motion of the suspension. Unlike conventional shock absorber which dissipates energy by passing a fluid, generally oil, through small orifices, thus generating heat, the regenerative shock absorber transforms the linear motion of the sus... | Optimal Electrical Load of the Regenerative Absorber for Ride Comfort and Regenerated Power | 10.1007/978-981-16-3239-6_43 |
2022-01-01 | The optimal design and seismic performance of a nonlinear tuned mass damper with pinched hysteresis (TMD-PH) are studied. The peculiar behavior of this device is offered by hybrid wire ropes made of shape memory alloy and steel under an axial-flexural loading. This device has been previously described by means of a mod... | Optimal Design and Seismic Performance of a Nonlinear TMD with Pinched Hysteresis | 10.1007/978-3-030-81166-2_19 |
2022-01-01 | In order to solve the problem that the output damping force of magnetorheological Damper is not large enough and the adjustable range is small, a bypass magnetorheological Damper is designed in this paper. The Valve is connected in a hydraulic cylinder with pipes to form a controllable magnetorheological Damper device.... | Design and Finite Element Analysis of Magnetorheological Damper | 10.1007/978-981-19-2456-9_91 |
2022-01-01 | The present Chapter presents on its entirety the dynamics of mechanical structures such as beam and rectangular plate when they are subjected to one or more DC motors with limited power supply. Attention is paid on the various applications of such study in civil and mechanical engineering. To deal with this topic, we d... | Control of the Dynamics of Mechanical Structures Supporting DC Motors with Limited Power Supply | 10.1007/978-3-030-96603-4_16 |
2022-01-01 | Passive control devices are widely used in the reduction of lateral vibrations of building structures. The control of these lateral vibrations is vital in preventing collisions between adjacent building structures during a seismic event. These collisions modify the dynamic behavior of the intervenient structures and ca... | Control Action of a Tuned Mass Damper in Mitigating Earthquake-Induced Structural Pounding Between Building Floors | 10.1007/978-3-031-10047-5_36 |
2022-01-01 | A semi-active control scheme for the vibration control of offshore steel jacket platforms is developed. Decentralized sliding mode control (SMC) algorithm is adopted for applying the control force to the structure with the help of Magneto-rheological (MR) damper for alleviating the earthquake-induced vibrations. SMC me... | Semi-active Seismic Vibration Control Offshore Jacket Platforms | 10.1007/978-981-16-5673-6_4 |
2022-01-01 | As the evolution of civilization took place, the shelter became the primary need for civilization. There emerged a demand for the construction of the permanent structure to repel environmental risk and community resilience. The development of the tall structure evolved in the construction of different structural forms ... | Seismic Vibration Mitigation of Damped Outrigger Structure Using a Passive Damper | 10.1007/978-981-16-6738-1_44 |
2022-01-01 | This chapter on the recent history of experimental structural dynamics puts much of the Handbook in a historical perspective that begins with the development of digital data methodology and computerized data processing that began in the mid-1960s. Experimental structural dynamics began much earlier with analog, single ... | Recent History of Experimental Structural Dynamics | 10.1007/978-1-4939-6503-8_1-1 |
2022-01-01 | Phytopathogenic fungi are known to secrete specific proteins which act as virulence factors and promote host colonization. Some of them are enzymes with plant cell wall degradation capability, like pectate lyases (Pls). In this work, we examined the involvement of Pls in the infection process of Magnaporthe oryzae , th... | Gene deletion and constitutive expression of the pectate lyase gene 1 (MoPL1) lead to diminished virulence of Magnaporthe oryzae | 10.1007/s12275-022-1074-7 |
2022-01-01 | The application of ring spring dampers in seismic design and strengthening/rehabilitation of civil structures is almost unknown and poorly investigated. Ring spring dampers are extremely robust, heat-resistant, durable, and have almost no maintenance requirements. Through an innovative design, they combine self-centeri... | Application and Optimization of Ring Spring Dampers for Seismic Design | 10.1007/978-3-031-03811-2_89 |
2022-01-01 | In this chapter, an introduction is presented for system dynamics and control. The main aim in the control of structures is to reduce vibrations and the vibration is defined then, the main concern of system dynamics and control such as control, automatic control, system, transfer function and control system types are g... | Introduction and Overview: Structural Control and Tuned Mass Dampers | 10.1007/978-3-030-98343-7_1 |
2022-01-01 | With an electric formula racing vehicle as the research object in the paper, a suspension design method with independent roll control function was introduced, and the conclusion that the suspension has different damping requirements in ride conditions and roll conditions was drawn. Compared with traditional vehicles wi... | Suspension Design of Formula Racing Vehicle with Roll Independent Control Function | 10.1007/978-981-16-2090-4_3 |
2022-01-01 | Frequency response of half-car model that is moving at a constant speed on sinusoidal road surface is investigated. The suspension system is considered with damper having nonlinear stiffness and damping characteristics. Primary and superharmonic resonance with internal resonance between front and rear wheels is studied... | Analysis of Half-Car Model with Nonlinear Damper Under Sinusoidal Road Excitation | 10.1007/978-3-030-81166-2_16 |
2022-01-01 | Conventional approaches in seismic design dissipate most of the energy input by the earthquake through plastic deformations in regions of the main structure that also support the gravity loads. This involves important damage spread throughout the structure. Innovative approaches based on the use of energy dissipation d... | From Conventional to Innovative Approaches in Seismic Engineering: Buildings with Energy Dissipation Systems and the Upcoming Second Generation of Eurocode-8 | 10.1007/978-3-031-15104-0_23 |
2022-01-01 | It is well–known that magneto–rheological dampers (MRDs) are usually designed based on their quasi–static models. However, in dynamic response, the dampers exhibit nonlinear hysteresis phenomena. For connection between the design phase and dynamic modeling of the MRDs, in this research, a new dynamic model named QSHM m... | A New Approach for Dynamic Modeling of Magneto–Rheological Dampers Based on Quasi–static Model and Hysteresis Multiplication Factor | 10.1007/978-3-030-91892-7_70 |
2022-01-01 | The high-temperature superconducting (HTS) maglev system has great potential to become a new type of rail transit due to its unique self-stabilizing levitation, low noise pollution, and environment-friendly operation. However, previous studies have shown that the damping properties of HTS system are low, and hence, its... | Vibration Reduction Using Eddy Current Damper in High-Temperature Superconducting Maglev System | 10.1007/s10948-021-06056-w |
2022-01-01 | The spring damper and viscous fluid damper were designed in detail, and the finite element model of the stabilized platform was established on the basis of the three-dimensional model of the stabilized platform, the mechanical simulation of the main structural parts is carried out. The pitch and roll angle of the anten... | Research and Design of Stabilization Platform for Ball-Borne Radar | 10.1007/978-981-19-1309-9_24 |
2022-01-01 | The non-linear propagation of dust acoustic waves (DAWs) in collisional, unmagnetized, viscous dusty plasma systems containing two temperature ions, electrons, high negatively charged dust grains are investigated. By using the reductive perturbation method (RPM) the damped Kadomtsev-Petviashvili Burgers (dKPB) equation... | Propagation of Rarefactive Dust Acoustic Solitary and Shock Waves in Unmagnetized Viscous Dusty Plasma Through the Damped Kadomstev-Petviashvili Burgers Equation | 10.1007/978-3-030-99792-2_15 |
2022-01-01 | The dynamic response of base-isolated bridge with various isolators is presented. Bridge modal of 2-span of length 19.5 m and width of 12.16 m has been picked for the present study. Two models are used in this study, one is non-isolated railway bridge with ballastless slab track and another one is base-isolated railway... | Seismic Analysis of Isolated and Non-isolated Railway Bridges with Slab Track—A Comparative Study | 10.1007/978-981-16-4617-1_27 |
2022-01-01 | In high-rise building conception, seismic load becomes more and more a big issue because seismic induced displacement (e.g. displacement or inter-stories shift) is very important. Tuned Liquid Damper (TLD) is considered as one promising solution thank to its efficacity and cheap installation cost. However, lack of stan... | Optimized Design of Tuned Liquid Damper for Mitigating Seismic Induced Vibration in Case of High-Rise Building | 10.1007/978-981-16-7160-9_43 |
2022-01-01 | Recently, linear magnetorheological (MR) dampers have been widely utilised for impact protection of seat suspensions. However, the viscous force of the linear MR damper increases seriously with the increase of impact velocity. This results in a sharp increase of the total output force of the seat suspension, which may ... | Numerical Study of Rotary Magnetorheological Seat Suspension on the Impact Protection | 10.1007/978-981-16-5912-6_74 |
2022-01-01 | In this chapter, an approximate analytical technique for computing the damped backbone curves resulting from the inclusion of viscous damping is presented. Traditionally, the analysis of nonlinear systems involves studying the relation between the nonlinear frequency and the resulting vibration amplitudes. One approach... | Exploring the Dynamics of Viscously Damped Nonlinear Oscillators via Damped Backbone Curves: A Normal Form Approach | 10.1007/978-3-030-81162-4_14 |
2021-12-29 | In this paper, we are concerned with the asymptotic behavior of solutions to the system of hyperbolic conservation laws with damping. In particular, a system includes compressible Euler equations with damping, $$M_1$$ M 1 -model, etc. Under some smallness conditions on initial perturbations, we prove that the solutions... | Optimal decay rates of solutions to hyperbolic conservation laws with damping | 10.1007/s00033-021-01657-w |
2021-12-27 | In this paper, we propose a time-dependent viscous system and by using the vanishing viscosity method we show the existence of delta shock solutions for a generalized zero-pressure gas dynamics system with linear damping. | Delta Shock Solution for a Generalized Zero-Pressure Gas Dynamics System with Linear Damping | 10.1007/s10440-021-00463-w |
2021-12-16 | High penetration of renewable sources into conventional power systems results in reduction of system inertia and noticeable low-frequency oscillations (LFOs) in the rotor speed of synchronous generators. In this paper, we propose effective damping of LFOs by incorporating a supplementary damping controller with a photo... | Effective damping of local low frequency oscillations in power systems integrated with bulk PV generation | 10.1186/s41601-021-00219-6 |
2021-12-10 | Fabric and resin materials, fiber orientations, volume fraction and knitting patterns are highly effective for the mechanical and dynamic properties of the composite materials. These materials can be subjected to impact loads at various energy levels depending on their application areas, and thus causes the material pr... | Effects of low-velocity impact on vibration behaviors of polyamide fiber-reinforced composites | 10.1007/s40430-021-03322-9 |
2021-12-08 | Analytical frequency analysis of a nonlinear viscoelastic microcantilever is performed based on strain gradient theory. The Kelvin–Voigt scheme is utilized to model the viscoelasticity effect. Due to the microcantilever shortening effect via Euler–Bernoulli inextensibility condition, geometric, inertia, stiffness, and ... | Size effects on stability and bifurcation of nonlinear viscoelastic microcantilevers based on strain gradient | 10.1007/s40430-021-03316-7 |
2021-12-01 | The viscous damping is a highly idealized but mathematically convenient way of representing the energy dissipation mechanisms not related to the hysteretic response. In this study, the tangent-stiffness proportional Rayleigh damping (TSPRD) appropriate for inelastic hysteretic structures outfitted with the supplemental... | Effect of Viscous Damping Models on Displacement Ductility Demands for SDOF Systems | 10.1007/s12205-021-1899-3 |
2021-12-01 | We are concerned with asymptotic stability of energy for plate equations with vanishing viscoelastic dampings and complementary frictional dampings, where the internal viscoelastic dampings are assumed to be time-dependent. In terms of the relaxation function $$\theta (t)$$ θ ( t ) and the coefficient $$\gamma (t)$$ γ ... | Asymptotic Stability of Energy for a Weak Viscoelastic Plate Equation with Complementary Frictional Damping | 10.1007/s00245-020-09738-4 |
2021-12-01 | We consider a fluid–structure interaction model defined on a doughnut-like domain. It consists of the dynamic Stokes equations evolving on the exterior sub-domain, coupled with an elastic structure occupying the interior sub-domain. A key factor—a novelty over past literature—is that the structure equation includes a s... | Fluid–Structure Interaction with Kelvin–Voigt Damping: Analyticity, Spectral Analysis, Exponential Decay | 10.1007/s00245-021-09812-5 |
2021-12-01 | In this paper we study the long-time dynamics of the perturbed system of suspension bridge equations $$\begin{aligned} m_c u_{tt}-\beta u_{xx}+\kappa (u-w)^+ +f_1(u,w)+ (-\partial _{xx})^{\gamma }u_{t}= & {} 0,\\ m_b w_{tt}+\mu w_{xxxx}+(p-\epsilon \Vert w_x\Vert ^2)w_{xx}-\kappa (u-w)^++f_2(u,w)+ (-\partial _{xx})^{\g... | Robustness of Global Attractors for Extensible Coupled Suspension Bridge Equations with Fractional Damping | 10.1007/s00245-021-09774-8 |
2021-12-01 | Abstract When an object is being transported by two robots of arbitrary structure, it must be stabilized around the static equilibrium position in the event of kinematic and mechanical perturbations. Dynamic equilibrium of the object in the clamps is described by the Mathieu equation. In controlling the robot executive... | Synchronous Group Operation of Robots with Arbitrary Manipulator Kinematics | 10.3103/S1068798X21120091 |
2021-12-01 | In this article, we consider the wave equation on hyperbolic spaces $$\mathbb {H}^n(n\ge 2)$$ H n ( n ≥ 2 ) with nonlinear locally distributed damping as follow: 1 $$\begin{aligned} {\left\{ \begin{array}{ll}u_{tt}-\Delta _g u+a(x)g(u_t)=0\qquad (x,t)\in \mathbb {H}^n\times (0,+\infty ), \\ u(x,0)=u_0(x),\quad u_0(x,0)... | Exponential Stabilization of the Wave Equation on Hyperbolic Spaces with Nonlinear Locally Distributed Damping | 10.1007/s00245-021-09751-1 |
2021-12-01 | Recent equations of motion for the large deflections of a cantilevered elastic beam are analyzed. In the traditional theory of beam (and plate) large deflections, nonlinear restoring forces are due to the effect of stretching on bending; for an inextensible cantilever, the enforcement of arc-length preservation leads t... | Theory of Solutions for an Inextensible Cantilever | 10.1007/s00245-021-09798-0 |
2021-12-01 | We propose a new approach toward the existence and uniqueness of periodic solutions to linear and semilinear evolution equations. Our approach is based on the connection of the conditional stability of evolution families (i.e., stability only in a subspace of the Banach space containing the initial data) with the choic... | Conditional stability and periodicity of solutions to evolution equations | 10.1007/s00028-021-00707-0 |
2021-12-01 | The life assessment of materials that structurally shifts, creating mechanical corrosion and damage, during the operation at high temperatures is one of the most critical areas in the gas turbine power plants. This study investigates the widely used carbon steel grade 55 SA516 in the gas turbine blades at metallographi... | Experimental Modal Analysis of Distinguishing Microstructural Variations in Carbon Steel SA516 by Applied Heat Treatments, Natural Frequencies, and Damping Coefficients | 10.1007/s11665-021-06125-0 |
2021-12-01 | For the energy-critical nonlinear damped wave equation, we show the unconditional well-posedness. The unconditional well-posedness means local well-posedness and the unconditional uniqueness. First, we give the local well-posedness and stability, whose statement will be useful to investigate the global dynamics. At sec... | Unconditional well-posedness for the energy-critical nonlinear damped wave equation | 10.1007/s00028-021-00744-9 |
2021-12-01 | When one of the natural frequencies of the drive shaft coincides with the excitation frequency of the engine, the vibration amplitude of the drive shaft increases significantly owing to the resonance of the drive shaft at the natural frequency. To reduce this resonance vibration, a single-mode dynamic damper (SMDD) has... | Development of a Dual Mode Dynamic Damper for Vibration Reduction of Drive Shaft in a Passenger Car | 10.1007/s12239-021-0137-9 |
2021-12-01 | With rigorous dynamic performance of mechanical products, it is important to identify dynamic parameters exactly. In this paper, a response surface plotting method is proposed and it can be applied to identify the dynamic parameters of some nonlinear systems. The method is based on the principle of harmonic balance met... | Parameter Identification of Structural Nonlinearity by Using Response Surface Plotting Technique | 10.1007/s12204-020-2242-8 |
2021-12-01 | A generalized model of the damper is proposed in the form of the equivalent Voigt model for viscoelastic materials, which fully correlates with the differential equation for induced oscillations in the system with a damper. The relations of parameters of the differential equation and parameters of the equivalent Voigt ... | Frequency characteristics of viscoelastic damper models and evaluation of a damper influence on induced oscillations of mechanical system elements | 10.1007/s11012-021-01446-9 |
2021-12-01 | This paper evaluates the dynamics of a heavy road truck on different random road conditions, whereas the issue of beam flexibility is also being accompanied. Heavy vehicles like trucks and buses having a large structure to carry their load ride in all kinds of terrains, for thousands of miles without failing structure.... | Effect of Distributed Damping on the Dynamic Behavior of Flexible Chassis of Heavy Road Vehicle Under Standardized Random Road Responses | 10.1007/s40997-020-00366-5 |
2021-12-01 | Dust ion acoustic waves (DIAWs) are investigated analytically in the framework of damped forced Korteweg–de Vries–Burgers (DFKdVB) equation in an unmagnetized collisional dusty plasma consisting of negatively charged stationary dust grains, positively charged ions and q -nonextensive distributed electrons. Reductive pe... | Analytical solitary wave solution of dust ion acoustic waves in nonextensive plasma in the framework of damped forced Korteweg–de Vries–Burgers equation | 10.1007/s12648-020-01929-7 |
2021-12-01 | The nonlinear dust ion acoustic solitary waves (DIAW) in a magnetized collisional dusty plasma comprising with negatively charged dust grain, positively charged ions along with q-nonextensive nonthermal electrons and neutral particles in the presence of small damping force is studied analytically through the framework ... | Propagation of dust-ion-acoustic solitary waves for damped modified Kadomtsev–Petviashvili–Burgers equation in dusty plasma with a q-nonextensive nonthermal electron velocity distribution | 10.1007/s40324-021-00242-5 |
2021-12-01 | A topology optimization method for coupled vibro-acoustic problem based on hybrid finite element-wave based method is proposed. The hybrid finite element-wave based method is used to model the coupled free layer damping structure-acoustics system, and a gradient-based topology optimization formulation is developed by s... | Topology optimization of damping material layout in coupled vibro-acoustic system using hybrid finite element-wave based method | 10.1007/s00158-021-03063-2 |
2021-12-01 | Considering the special requirements for damping materials in the field of building isolation and vibration control, this research aims to improve the mechanical and damping properties of nitrile butadiene rubber (NBR, ACN content: 36–42%)-based matrix material by blending four kinds of minimal particles. Carbon black,... | Experimental study on the damping properties of NBR-based viscoelastic materials enhanced by minimal particles | 10.1007/s42464-021-00128-1 |
2021-12-01 | The microstructures, texture, damping and mechanical properties of Mg-Nd-Zn-Zr alloy processed by hot extrusion were investigated in this work. The results showed that the microstructures were markedly refined, and uniformly distributed after hot extrusion. The average grain size was refined to 8.1 ± 1.6 μm (extrusion ... | Evolution of Microstructures, Texture, Damping and Mechanical Properties of Hot Extruded Mg-Nd-Zn-Zr Alloy | 10.1007/s11665-021-06134-z |
2021-12-01 | Abstract In this work, in situ oxidation and particle-dispersed methods are successfully used to prepare novel oxide/Mg composites with ultra-high damping capacity starting from pure Mg as the matrix. Successful incorporation of the MgO particles into the Mg matrix is experimentally demonstrated, and the role of the ox... | Ultra-High Damping Capacity of Oxide Reinforced Magnesium Matrix Composites by In Situ Synthesis | 10.1007/s12540-020-00834-2 |
2021-12-01 | Abstract The theoretical substantiations of an indirect analytical method for assessing the wear of a dry friction damper structure are presented. The wear is simulated by variations in the parameters of the load–damper dynamic system, leading to changes in the kinematic characteristics of the motion of the system, bas... | Dynamics of a Dry Friction Wedge Damper with a Finite Number of Degrees of Freedom Taking into Account Structural Wear | 10.3103/S1052618821090041 |
2021-12-01 | The main goal of this study is to investigate the effectiveness of backward-shared tuned mass damper inerter (BSTMDI) in reducing inter-storey drift as well as pounding between adjacent buildings. A backward-shared-TMDI (BSTMDI) linking two adjacent medium-rise buildings is presented, considering the practical and econ... | Seismic response control of adjacent buildings using optimal backward-shared tuned mass damper inerter and optimal backward-shared tuned inerter damper | 10.1007/s42107-021-00394-9 |
2021-12-01 | Abstract Rotor systems are widely used in various machines, apparatuses, and other engineering systems, the crucial condition of the efficiency of which is the stability of stationary modes in a wide range of operation rotation speeds. In this work, mitigation of torsional oscillations is considered by the mechanical a... | A Centrifugal Pendulum Tuned Mass Damper for Rotor Systems | 10.3103/S1052618821080033 |
2021-12-01 | Under parametric excitations and external forces induced by base motions, dynamic behavior of an on-board rotor system supported by squeeze film damper (SFD) considering fluid inertia was investigated. Based on perturbation method, oil-film pressure and three-dimensional velocities were represented by first-order funct... | Dynamic behavior of a flexible rotor system with squeeze film damper considering oil-film inertia under base motions | 10.1007/s11071-021-06978-z |
2021-11-26 | The present investigation incorporates a detailed study of unsteady MHD flow and heat transfer of a second grade fluid between two infinitely long porous plates. With the aid of implicit finite difference scheme the pertinent partial differential equations are transformed and framed as system of algebraic equations. Th... | Numerical Study of Unsteady MHD Second Grade Fluid Flow and Heat Transfer Within Porous Channel | 10.1007/s40819-021-01196-y |
2021-11-26 | This article intends to examine thermoelastic damping (TED) in circular cylindrical nanoshells by considering small-scale effect on both structural and thermal areas. To fulfill this aim, governing equations are extracted with the aid of nonlocal elasticity theory and dual-phase-lag (DPL) heat conduction model. Circula... | Analytical and parametric analysis of thermoelastic damping in circular cylindrical nanoshells by capturing small-scale effect on both structure and heat conduction | 10.1007/s43452-021-00330-3 |
2021-11-23 | Energy levels are considered for the two-photon parity $$\lambda $$ λ -deformed Jaynes–Cummings model of a single two-level atom interacting with a single-mode cavity field corresponding to para-Bose oscillator algebra of order $$p=2\lambda +1$$ p = 2 λ + 1 . Time evolution of the atom-field states with the initial sta... | Two-photon Jaynes–Cummings model: a two-level atom interacting with the para-Bose field | 10.1007/s11128-021-03338-z |
2021-11-19 | In this paper, we investigate a one-dimensional porous elastic system of memory-type coupled with thermal effects, knowing that the heat flux used was introduced by Green and Naghdi. We establish a general decay result irrespective of any condition among the coefficients of the system. | General decay for memory-type porous elastic system with thermoelasticity of type III | 10.1007/s11587-021-00673-2 |
2021-11-17 | In this paper, we consider coupled plate equations with indirect damping including friction and structural damping. By using suitable diagonalization procedure associated with WKB analysis, we derive asymptotic behavior of solutions in the Fourier space. Then, smoothing effect and decay properties in the $$L^p-L^q$$ L ... | Coupled plate equations with indirect damping: smoothing effect, decay properties and approximation | 10.1007/s00033-021-01640-5 |
2021-11-14 | In this paper, we are considering the one-dimensional porous-elastic system with nonlinear localized damping acting in a arbitrary small region of the interval under consideration. Assuming appropriate assumptions on the nonlinear terms, we establish the energy decay of the corresponding system. To do this, we used the... | Energy decay for a porous-elastic system with nonlinear localized damping | 10.1007/s00033-021-01636-1 |
2021-11-14 | Modeling techniques applied to mechanical vibration damping problems in systems made of viscoelastic materials contribute to the development of compact and efficient industrial devices. To reduce the weight of rotors, polymeric materials and light metal alloys can be included in their manufacturing. The objectives of t... | Viscoelastic rotors: a proposed analytical solution and results for rotors made of different materials | 10.1007/s40430-021-03260-6 |
2021-11-13 | Recently , biochar has been widely used in geotechnical and environmental engineering to solve various engineering problems. However, very few studies have been carried out to understand the cyclic behavior of the biochar treated soil. This study explores the possibility of using environment-friendly and stable carbon ... | Laboratory Investigations of Liquefaction Mitigation of Ganga Sand Using Stable Carbon Material: A Case Study | 10.1007/s40891-021-00333-3 |
2021-11-08 | In this paper, we study the indirect stability of Timoshenko system with local or global Kelvin–Voigt damping, under fully Dirichlet or mixed boundary conditions. Unlike Zhao et al. (Acta Mathematica Sinica Engl Ser 21(3):655–666, 2004), Tian and Zhang (Mathematik und Physik 68(1), 2017), and Liu and Zhang (SIAM J Cont... | A transmission problem for the Timoshenko system with one local Kelvin–Voigt damping and non-smooth coefficient at the interface | 10.1007/s40314-021-01446-1 |
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