Journal of Sound and Vibration最新文献_第7页

Compound nonlinear energy sink with multiple motion types for absorbing energy from wide excitation ranges 具有多种运动类型的复合非线性能量汇，可吸收宽激励范围的能量

IF 4.3 2区工程技术

Journal of Sound and Vibration Pub Date : 2025-06-03 DOI: 10.1016/j.jsv.2025.119273

Jianen Chen , Jiaqi Zhao , Wei Zhang , Min Sun

{"title":"Compound nonlinear energy sink with multiple motion types for absorbing energy from wide excitation ranges","authors":"Jianen Chen , Jiaqi Zhao , Wei Zhang , Min Sun","doi":"10.1016/j.jsv.2025.119273","DOIUrl":"10.1016/j.jsv.2025.119273","url":null,"abstract":"<div><div>Nonlinear energy sink (NES) has garnered significant attention since its inception due to its notable broadband vibration reduction capability. However, the introduction of strong nonlinear characteristics by NESs complicates system responses, leading to a loss of effectiveness when the excitation force exceeds a specific threshold. Consequently, NESs have limited applicability in engineering because they are effective only within a constrained range of excitation amplitude. In this study, a compound NES (CNES) with multiple motion types is designed to extend the effective force range while maintaining broadband vibration reduction capability. The CNES is distinguished by its piecewise stiffness, collision mechanisms, and unique design of two-degree-of-freedom oscillators. The wide effective range of the CNES is demonstrated through slow linear sweep and fixed-frequency tests. The results indicate that the CNES effectively reduces vibrations in the primary oscillator (PO) with various resonant frequencies. Notably, the CNES achieves significant vibration reduction over a particularly wide range of excitation amplitude when controlling the PO with relatively high resonance frequencies (approximately 10.5 Hz and 19 Hz). However, a nonnegligible limitation of the CNES is its restricted effective range of excitation amplitude when the PO resonates at lower frequency (approximately 7 Hz). Moreover, five motion types of the CNES are identified and analyzed, with one motion type autonomously emerging in response to changes in excitation parameters, ensuring excellent vibration reduction performance across a wide excitation range. Finally, the performance of the CNES and a degraded single-degree-of-freedom CNES are compared to further demonstrate the extension effect of the multiple motion types on the effective range. The CNES can be used in scenarios where the parameters of protected systems and excitations vary widely, providing a thought to improve the NESs.</div></div>","PeriodicalId":17233,"journal":{"name":"Journal of Sound and Vibration","volume":"617 ","pages":"Article 119273"},"PeriodicalIF":4.3,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144279154","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An original modeling method of velocity-dependent mesh stiffness for spur gear system with centrifugal effect 一种具有离心效应的直齿轮系统速度相关啮合刚度建模方法

IF 4.3 2区工程技术

Journal of Sound and Vibration Pub Date : 2025-06-03 DOI: 10.1016/j.jsv.2025.119210

Guoyin Mo , Lili Zhang , Yanan Shi , Hongguan Li , Guangshui Tong , Guangbin Yu , Penghao Duan , Jielu Zhang , Hanjun Jiang , Dayi Qu , Fuhao Liu

{"title":"An original modeling method of velocity-dependent mesh stiffness for spur gear system with centrifugal effect","authors":"Guoyin Mo , Lili Zhang , Yanan Shi , Hongguan Li , Guangshui Tong , Guangbin Yu , Penghao Duan , Jielu Zhang , Hanjun Jiang , Dayi Qu , Fuhao Liu","doi":"10.1016/j.jsv.2025.119210","DOIUrl":"10.1016/j.jsv.2025.119210","url":null,"abstract":"<div><div>The driving speed and related centrifugal effects are major in determining mesh stiffness during the gear meshing process. However, many researchers commonly ignore these factors. In this work, an original computational algorithm (OCA) based on Euler beam theory that considers the centrifugal effect is presented for calculating the velocity-dependent time-varying mesh stiffness (VMS) of spur gears. Comparisons with the findings of finite element analysis (FEA) are used to verify the accuracy of the OCA. This study employs driving speed as the control parameter and analyzes the VMS in both the time and frequency domains. Furthermore, it investigates the effects of centrifugal force on the VMS across different materials. The results show that the driving speed affects both the VMS and the natural frequencies of gear pairs. It is noteworthy that while higher-density materials have the opposite effect, materials with a high elastic modulus tend to lessen the effect of driving speed on VMS. Further investigation into the noise and vibrations in gears caused by centrifugal effects can be theoretically supported by the findings presented in this work.</div></div>","PeriodicalId":17233,"journal":{"name":"Journal of Sound and Vibration","volume":"617 ","pages":"Article 119210"},"PeriodicalIF":4.3,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144240705","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A matrix method for designing bandgap of stretch-dominated mechanical metamaterials 基于矩阵法的拉伸机械超材料带隙设计

IF 4.3 2区工程技术

Journal of Sound and Vibration Pub Date : 2025-06-02 DOI: 10.1016/j.jsv.2025.119257

Zijian Wang, Hua Deng, Hongchuang Liu

{"title":"A matrix method for designing bandgap of stretch-dominated mechanical metamaterials","authors":"Zijian Wang, Hua Deng, Hongchuang Liu","doi":"10.1016/j.jsv.2025.119257","DOIUrl":"10.1016/j.jsv.2025.119257","url":null,"abstract":"<div><div>The dynamic equation in matrix form is established for the unit cell of stretch-dominated mechanical metamaterials, which is modelled as a pin-bar structure. By condensing the degrees of freedom of equivalent nodes by introducing Bloch’s theorem, the dynamic equation is transformed into a generalized characteristic equation for solving the dispersion function of metamaterials. It is proven that the necessary condition for a bandgap to exist is that the number of inequivalent nodes of the metamaterial is greater than 1 by analysing the generalized characteristic equation. The formula for calculating the number of inequivalent nodes is given, which indicates that it can generally be increased either by inserting nodes or by redefining the unit cell. Based on matrix perturbations and the gradient descent method, a numerical strategy is proposed to generate a bandgap with an expected width or range by optimizing the element cross-sectional areas and node coordinates of the unit cell. The degenerate points of the dispersion function can also be eliminated by using matrix perturbations. Two metamaterials are employed as examples to verify the validity of the proposed method. The prescribed bandgaps are generated by increasing the number of inequivalent nodes and optimizing the element cross-sectional areas and node coordinates.</div></div>","PeriodicalId":17233,"journal":{"name":"Journal of Sound and Vibration","volume":"617 ","pages":"Article 119257"},"PeriodicalIF":4.3,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144279184","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hopf bifurcation analysis and control of actuated wheelset under delayed linear and nonlinear feedback 时滞线性和非线性反馈下驱动轮对的Hopf分岔分析与控制

IF 4.3 2区工程技术

Journal of Sound and Vibration Pub Date : 2025-06-02 DOI: 10.1016/j.jsv.2025.119216

Peng Guo, Jing Zeng

{"title":"Hopf bifurcation analysis and control of actuated wheelset under delayed linear and nonlinear feedback","authors":"Peng Guo, Jing Zeng","doi":"10.1016/j.jsv.2025.119216","DOIUrl":"10.1016/j.jsv.2025.119216","url":null,"abstract":"<div><div>This paper investigates the hunting bifurcation behavior of an actuated railway wheelset under delayed linear and nonlinear yaw feedback control. The control force applied by the actuator is described as a delayed polynomial function of the state variables. First, the local stability and the occurrence of Hopf bifurcation are considered by treating the time delay as a bifurcation parameter and analyzing the associated characteristic equation. The explicit formulae are then derived to determine the direction of Hopf bifurcation and the stability of bifurcated periodic solutions using the normal form theory and center manifold theorem. The impact of changes in individual variables on the critical time delay is discussed within a specified range. Finally, the effects of time delay and feedback control gains on the Hopf bifurcation point, type of bifurcation, and limit cycle amplitude are thoroughly examined. Numerical simulations conducted via the continuation package DDE-BIFTOOL validate the theoretical analysis results. Our findings demonstrate that the optimal combination of linear and nonlinear velocity control gains enhances hunting stability by delaying Hopf bifurcation and mitigating hunting oscillations.</div></div>","PeriodicalId":17233,"journal":{"name":"Journal of Sound and Vibration","volume":"617 ","pages":"Article 119216"},"PeriodicalIF":4.3,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144222632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Forced vibration analysis of an axially moving and spinning drill string system based on Green’s functions 基于格林函数的轴向旋转钻柱系统强迫振动分析

IF 4.3 2区工程技术

Journal of Sound and Vibration Pub Date : 2025-06-01 DOI: 10.1016/j.jsv.2025.119245

Xiang Zhao , Wenjie Li , Weidong Zhu , Dan Gan , Hongjun Zhu , Xueping Chang , Mingze Yuan , Yinghui Li

{"title":"Forced vibration analysis of an axially moving and spinning drill string system based on Green’s functions","authors":"Xiang Zhao , Wenjie Li , Weidong Zhu , Dan Gan , Hongjun Zhu , Xueping Chang , Mingze Yuan , Yinghui Li","doi":"10.1016/j.jsv.2025.119245","DOIUrl":"10.1016/j.jsv.2025.119245","url":null,"abstract":"<div><div>A drill string is a critical structural component in the petroleum industry, subject to various influences such as high temperature, high pressure, torsional forces, drilling fluids, and frictional interaction at the drill bit during operation, especially the frictional interaction at the drill bit, which produces complex friction torques or forces that could induce stick-slip vibrations and complicated nonlinear vibrations of the drilling string. This paper formulated a systematically novel nonlinear dynamic model of a drill string that considered combined effects of axially moving and spinning motions, the frictional interaction at the drill bit, and internal and external drilling fluid circulation. For the aim of investigating the combined effects of axially moving and spinning motions, a degenerated linear dynamic model of the axially moving and spinning drill string (ASDS) is studied analytically. A novel aspect of this work is that firstly the effects of axially moving and spinning motions, with both internal and external drilling fluid circulation on forced vibration of the drill string are all considered. The extended Hamilton principle is used to establish the systematical nonlinear dynamic model of the drill string. The Green’s function and the Laplace transform are then applied to obtain the fundamental solution of the vibration equation, which is general and can be adapted to various boundary conditions. In the numerical results section, the effectiveness of the proposed method is validated by comparing it with existing results from references. The influence of factors such as axially moving velocity, spinning velocity, internal drilling fluid velocity, and the viscous damping coefficient on the vibration response of the drill string is discussed, providing a theorewtical basis for the vibration control of drill strings.</div></div>","PeriodicalId":17233,"journal":{"name":"Journal of Sound and Vibration","volume":"617 ","pages":"Article 119245"},"PeriodicalIF":4.3,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144263549","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Analysis of dynamic pull-in for lumped MEMS model of atomic force microscope with constant magnetic excitation 恒磁激励原子力显微镜集总MEMS模型的动态拉入分析

IF 4.3 2区工程技术

Journal of Sound and Vibration Pub Date : 2025-05-30 DOI: 10.1016/j.jsv.2025.119215

Piotr S. Skrzypacz , Piotr A. Putek , Bartosz Cz. Pruchnik , Alkham Turganov , Grant A. Ellis , Teodor P. Gotszalk

{"title":"Analysis of dynamic pull-in for lumped MEMS model of atomic force microscope with constant magnetic excitation","authors":"Piotr S. Skrzypacz , Piotr A. Putek , Bartosz Cz. Pruchnik , Alkham Turganov , Grant A. Ellis , Teodor P. Gotszalk","doi":"10.1016/j.jsv.2025.119215","DOIUrl":"10.1016/j.jsv.2025.119215","url":null,"abstract":"<div><div>We study the dynamical behavior of electromagnetically actuated MEMS cantilevers used in atomic force microscopy (AFM) in the non-contact working state. The nonlinear nature of the MEMS sensor’s tip-sample interaction, considered in the dynamic operation mode, must be appropriately modeled due to the van der Waals-type attraction/repulsion force. The resulting one-degree-of-freedom lumped parameter model constitutes the initial value problem for singular oscillator equation. The occurrence of pull-in solutions for this model with one magnetic excitation parameter is thoroughly analyzed. In particular, due to the Lorentz force-based electromagnetic actuation, we investigate two dynamic pull-in scenarios corresponding to a nonlinear system for which pull-in thresholds are analytically determined. Moreover, sufficient conditions for occurrence of pull-in or oscillatory solutions are rigorously derived and validated numerically. These results generalize those given previously, and can be useful for designing single-degree-of-freedom models of electromagnetically actuated MEMS cantilevers. Finally, we present and discuss a comparison between experimental data and theoretical predictions for a defined benchmark case.</div></div>","PeriodicalId":17233,"journal":{"name":"Journal of Sound and Vibration","volume":"617 ","pages":"Article 119215"},"PeriodicalIF":4.3,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144195459","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Distributed dynamic load identification for complex non-rectangular plate 复杂非矩形板的分布动荷载识别

IF 4.3 2区工程技术

Journal of Sound and Vibration Pub Date : 2025-05-29 DOI: 10.1016/j.jsv.2025.119250

Yinshen Wang , Jinhui Jiang , Jicheng Gao , Hefeng Liu

引用次数: 0

Some links between dispersion equations and orthogonality relations, and an application to fluid-structure interaction 色散方程与正交关系之间的联系及其在流固耦合中的应用

IF 4.3 2区工程技术

Journal of Sound and Vibration Pub Date : 2025-05-29 DOI: 10.1016/j.jsv.2025.119249

S.V. Sorokin , C.J. Chapman

引用次数: 0

Thermomechanical transient dynamics of radial rotor–stator contact 径向转子-定子接触的热力瞬态动力学

IF 4.3 2区工程技术

Journal of Sound and Vibration Pub Date : 2025-05-29 DOI: 10.1016/j.jsv.2025.119207

Coline Jacobs , Fabrice Thouverez , Mathias Legrand , Patricio Almeida

{"title":"Thermomechanical transient dynamics of radial rotor–stator contact","authors":"Coline Jacobs , Fabrice Thouverez , Mathias Legrand , Patricio Almeida","doi":"10.1016/j.jsv.2025.119207","DOIUrl":"10.1016/j.jsv.2025.119207","url":null,"abstract":"<div><div>The present paper discusses the numerical investigation of structural interactions initiated radially between a turbine shaft and an annular stator. The rotorshaft is modeled under the rigid bodies assumption while the stator is discretized in space with curved Bernoulli beam elements. The turbomachine is assumed to be driven by two torques: the first one is prescribed from aerodynamics while the second one is induced by sliding friction from Coulomb’s model and must be assessed. The study is motivated by the need to predict the dynamic behavior of the rotorshaft in the presence of radial contact between the labyrinth and the annular stator. If rotordynamics accounting for unilateral and frictional contact is widely developed in literature, the combination with an unknown rotational velocity and thermomechanical coupling must still be investigated. Indeed, heat generation and subsequent thermal expansion is expected to modify the contact interface and the dynamic response. The system is solved in the time domain and contact treatment is achieved though a modified version of the Carpenter algorithm. The identification of the conditions affecting the rotational speed is achieved through a sensitivity analysis on the stator properties, friction coefficient and coefficient of thermal expansion. Results confirm that the higher the friction coefficient and stator stiffness are, the lower the maximum rotational velocity value is. It is also shown that high temperatures are located in specific regions on the stator and that the temperature peaks are amplified with thermal expansion.</div></div>","PeriodicalId":17233,"journal":{"name":"Journal of Sound and Vibration","volume":"617 ","pages":"Article 119207"},"PeriodicalIF":4.3,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144240706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Coupling mechanisms of large-deformable beams and nonlinear acoustic waves in unbounded domains of heavy fluids 重流体无界域中大变形梁与非线性声波的耦合机理

IF 4.3 2区工程技术

Journal of Sound and Vibration Pub Date : 2025-05-28 DOI: 10.1016/j.jsv.2025.119244

Guoxu Wang, Yegao Qu, Yapeng Li, Hao Liu, Jiawei Mao

{"title":"Coupling mechanisms of large-deformable beams and nonlinear acoustic waves in unbounded domains of heavy fluids","authors":"Guoxu Wang, Yegao Qu, Yapeng Li, Hao Liu, Jiawei Mao","doi":"10.1016/j.jsv.2025.119244","DOIUrl":"10.1016/j.jsv.2025.119244","url":null,"abstract":"<div><div>The nonlinear vibration and acoustic radiation of large-deformable beams in light fluids have been studied to some extent, but the coupling effects in heavy fluids remain unclear. This paper aims to reveal the coupling mechanisms of large-deformable beams and nonlinear acoustic waves in heavy unbounded fluid domains. A partitioned strongly coupled nonlinear frequency-domain finite element method is established to solve the nonlinear beam and acoustic equations. The modal and harmonic components of beam displacement, acoustic pressure, excitation input energy, beam damping dissipation energy, and acoustic radiation energy are analyzed for elucidating the coupling mechanisms. The results show that, under the same external harmonic excitation conditions, compared to the frequency responses of beam displacement and acoustic pressure in air, those in water shift to lower frequencies, with larger amplitudes and stronger nonlinear effects. Due to the structural cubic geometric nonlinearity and large-amplitude excitation, super-harmonic resonances are observed in the frequency responses of beam displacement and acoustic pressure. Under super-harmonic resonance and low-order primary resonance conditions, the triple-frequency components of most modes account for a significant proportion of their total responses. Under high-order primary resonance conditions, compared to air, the beam vibration in water is more likely to excite low-order modes in the radiated acoustic field. Relatively high acoustic radiation efficiency can be witnessed in the first primary resonance in air and the high-order primary resonance in water. These results will help to understand the differences and connections in the coupling characteristics of vibration and radiated acoustic fields of large-deformable structures in light and heavy fluids.</div></div>","PeriodicalId":17233,"journal":{"name":"Journal of Sound and Vibration","volume":"617 ","pages":"Article 119244"},"PeriodicalIF":4.3,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144222636","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0