Vibration power flow characteristics of the whole-spacecraft with a nonlinear energy sink

Zhang, Yewei; Zhou, Lin; Wang, Shuo; Yang, Tianzhi; Chen, Liqun

doi:10.1177/1461348419829363

Cited by 20 publications

(3 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Notably, its advantage lies in frequency domain analysis, allowing precise representation of vibration energy distribution across each layer of the structure. Following Goyder's description and discourse on a continuum-dynamics-centered power flow analysis approach [7][8][9], the power flow theory finds extensive application in diverse fields like marine, aerospace, and machinery [10][11][12]. This approach is equally relevant in the context of rail transportation, constituting a continuous dynamics challenge.…”

Section: Introductionmentioning

confidence: 99%

Influence of Fastener Stiffness and Damping on Vibration Transfer Characteristics of Urban Railway Bridge Lines Using Vibration Power Flow Method

Cao,

Yang,

et al. 2023

Applied Sciences

View full text Add to dashboard Cite

The problem of vibration in urban rail transportation has become a current research hotspot. When a train passes through a bridge line at high speed, it interacts with the rail, leading to vibration energy transfer and causing issues such as vibration and noise in the line infrastructure. To propose a more targeted vibration-damping track structure, it is necessary to explore the vibration characteristics of urban rail transit bridge lines and understand the regulations governing the distribution of vibration energy. This paper employs the theory of vehicle–rail–bridge interaction to establish a coupled dynamics model for a subway A-type vehicle–integral ballast bed–box girder bridge. Based on the proposed model, the transmission characteristics and distribution of vibration energy in the rail–bridge system are systematically analyzed and the influence of the parameters of the track structural components on the power flow of the system are investigated. The results of this study indicate that low-frequency vibration energy in the track system of urban rail transit bridges is primarily concentrated within the track structure, whereas high-frequency vibration energy is mainly focused on the rail. The fastener, as a component connecting the rail and the overall roadbed, has different effects on the peak value of the power flow and the accumulation of vibration energy in various components such as the rail, the overall roadbed, the top plate of the box girder bridge, and the bottom plate in different frequency bands due to its own stiffness and damping. An appropriate increase in fastener damping is beneficial for reducing the accumulation of low-frequency vibration energy in the track structure.

show abstract

Section: Introductionmentioning

confidence: 99%

Influence of Fastener Stiffness and Damping on Vibration Transfer Characteristics of Urban Railway Bridge Lines Using Vibration Power Flow Method

Cao,

Yang,

et al. 2023

Applied Sciences

View full text Add to dashboard Cite

show abstract

“…Ren et al [29] compared the power transmission between rigid, single-stage isolation and double-stage isolation gearbox installation configurations with the vibration power flow of the system as the evaluation index. Zhang et al [30] proposed a power flow analysis method for quantitatively evaluating the dynamic performance of a nonlinear energy sink in the frequency domain. Xu et al [31] analyzed the bending vibration and power flow of axially loaded beams with arbitrary boundaries and nonuniform elastic foundations via energy principle in conjunction with the Rayleigh-Ritz procedure.…”

Section: Introductionmentioning

confidence: 99%

Effect of Support Stiffness Nonlinearity on the Low-Frequency Vibro-Acoustic Characteristics for a Mechanical Equipment—Floating Raft—Underwater Cylindrical Shell Coupled System

Wang,

Huo

2023

Inventions

View full text Add to dashboard Cite

The low-frequency vibro-acoustic characteristics of a mechanical equipment—floating raft—cylindrical shell—underwater acoustic field coupled system with nonlinear supports are studied in this paper. Firstly, the state space equations were established by a modal superposition theory for the coupled system, and a modal parameter identification method was deduced and verified for the cylindrical shell—underwater acoustic field coupled subsystem. On this basis, the formulas were derived for transmitted power flow in the coupled system, and the nonlinear stiffness constitutive relation of the vibration isolation supports was expressed by softening and hardening characteristics. Finally, dynamic simulations were carried out by the Runge—Kutta method to analyze the effect of nonlinear stiffness characteristic parameters on the low-frequency vibration modes and vibro-acoustic transfer characteristics in the coupled system. The research shows that a superharmonic phenomenon is common in the steady vibration mode of the coupled system with a nonlinear softening (or hardening) stiffness characteristic under harmonic excitation. The stronger the softening (or hardening) stiffness characteristic is, the more complex the vibration form is, and the smaller (or larger) the low-frequency vibro-acoustic transfer level in resonance regions is.

show abstract

“…To overcome the limitations of linear vibration control, the field of nonlinear vibration isolation and absorption has attracted extensive attention (Gatti, 2017;Geng et al, 2020;Pu et al, 2019;Wang et al, 2019b;Wang et al, 2018a;Yan et al, 2019a;Yan et al, 2019b). Quasi-zero stiffness (QZS) vibration isolation and nonlinear energy sinks (NESs) vibration absorption have well developed in the past few years (Han et al, 2015;Lu et al, 2019;Zang et al, 2018;Zhang et al, 2011;Zhang et al, 2019a;Zhang et al, 2019c).…”

Section: Introductionmentioning

confidence: 99%

A suspension system with quasi-zero stiffness characteristics and inerter nonlinear energy sink

Zeng

Ding

2020

Journal of Vibration and Control

Self Cite

View full text Add to dashboard Cite

In this article, a novel vibration control scheme of suspension systems is proposed. It combines the advantages of quasi-zero stiffness isolator, nonlinear energy sink absorber, and inerter. This proposed scheme can achieve low transmissibility, low amplitude, and low additional weight and resolve the conflict between riding comfort and handling stability. Strong nonlinear vibration equations of a quarter-vehicle suspension system are established. It also presents the detailed process of high-order harmonic approximation to obtain steady-state responses. Moreover, approximate solutions are validated by a numerical method. Furthermore, based on riding comfort and handling stability, the following four suspension systems are evaluated and compared, namely, 2-degree-of-freedom quarter-vehicle model, 2-degree-of-freedom quarter-vehicle with quasi-zero stiffness isolator, 2-degree-of-freedom quarter-vehicle with inerter-nonlinear energy sink absorber, and 2-degree-of-freedom quarter-vehicle integrated control scheme with quasi-zero stiffness and inerter-nonlinear energy sink. It is found that the integrated control scheme with quasi-zero stiffness and inerter-nonlinear energy sink can significantly improve the riding comfort and handling stability at the same time. In addition, the effects of system parameters are studied carefully. The results show that based on the reasonable design of the control system parameters, better riding comfort and handling stability can be obtained. In short, this article provides a theoretical basis for integrating quasi-zero stiffness isolators and inerter-nonlinear energy sink absorbers to improve the riding comfort and handling stability.

show abstract

Vibration power flow characteristics of the whole-spacecraft with a nonlinear energy sink

Cited by 20 publications

References 51 publications

Influence of Fastener Stiffness and Damping on Vibration Transfer Characteristics of Urban Railway Bridge Lines Using Vibration Power Flow Method

Influence of Fastener Stiffness and Damping on Vibration Transfer Characteristics of Urban Railway Bridge Lines Using Vibration Power Flow Method

Effect of Support Stiffness Nonlinearity on the Low-Frequency Vibro-Acoustic Characteristics for a Mechanical Equipment—Floating Raft—Underwater Cylindrical Shell Coupled System

A suspension system with quasi-zero stiffness characteristics and inerter nonlinear energy sink

Contact Info

Product

Resources

About