International Journal of Non-Linear Mechanics最新文献

Geometrically nonlinear oscillations of composite sandwich cylindrical shell with honeycomb core under axial time periodic force 轴向时间周期力作用下蜂窝芯复合材料夹层圆柱壳的几何非线性振动

IF 2.8 3区工程技术

International Journal of Non-Linear Mechanics Pub Date : 2025-06-25 DOI: 10.1016/j.ijnonlinmec.2025.105196

B. Uspensky , K. Avramov , S. Malyshev , O. Nikonov

{"title":"Geometrically nonlinear oscillations of composite sandwich cylindrical shell with honeycomb core under axial time periodic force","authors":"B. Uspensky , K. Avramov , S. Malyshev , O. Nikonov","doi":"10.1016/j.ijnonlinmec.2025.105196","DOIUrl":"10.1016/j.ijnonlinmec.2025.105196","url":null,"abstract":"<div><div>Cylindrical composite sandwich shell, which consists of two outer layers and thick honeycomb core, is considered. The outer thin layers are manufactured from composite orthotropic material and honeycomb core is manufactured from orthotropic plastic.</div><div>Parametric nonlinear oscillations of cylindrical shell under the action longitudinal time periodic force are considered. The honeycomb core is homogenized. As a result, orthotropic solid continuum is obtained. Stressed state of every layer is described by higher order shear theory, which uses five generalized displacements (three displacements projections and two rotations angles of normal to middle surfaces). The assumed-mode method is applied to obtain the system of nonlinear ordinary differential equations with respect to the generalized coordinates to describe the sandwich structure vibrations.</div><div>The shooting technique and continuation method are applied jointly to analyze the nonlinear oscillations, their stability and bifurcations. The geometrically nonlinear oscillations are considered in the principal parametric resonances with account of internal resonances. Stability and bifurcations of periodic motions are shown on the frequency response, which describes the structure nonlinear dynamics in principle parametric resonances.</div></div>","PeriodicalId":50303,"journal":{"name":"International Journal of Non-Linear Mechanics","volume":"178 ","pages":"Article 105196"},"PeriodicalIF":2.8,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144511063","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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On a doubled-frequency squared-amplitude hybrid energy harvester 在双频平方振幅混合能量采集器上

IF 2.8 3区工程技术

International Journal of Non-Linear Mechanics Pub Date : 2025-06-19 DOI: 10.1016/j.ijnonlinmec.2025.105192

Nguyen Ngoc Hung , La Duc Viet , Nguyen Ngoc Linh

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Stability of a liquid film hanging underneath a large horizontal cylinder 悬挂在一个大的水平圆筒下面的液膜的稳定性

IF 2.8 3区工程技术

International Journal of Non-Linear Mechanics Pub Date : 2025-06-11 DOI: 10.1016/j.ijnonlinmec.2025.105189

Sergey Aktershev, Aleksey Bobylev, Andrey Cherdantsev

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Admissibility of discontinuities in the solutions of a hyperbolic 2 × 2 system of conservation laws 双曲2x2守恒律系统解中不连续的可容许性

IF 2.8 3区工程技术

International Journal of Non-Linear Mechanics Pub Date : 2025-06-11 DOI: 10.1016/j.ijnonlinmec.2025.105174

A.P. Chugainova, R.R. Polekhina

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Probabilistic solution of high-dimensional nonlinear systems excited by combined Gaussian and Poisson white noise 高斯和泊松联合白噪声激励下高维非线性系统的概率解

IF 2.8 3区工程技术

International Journal of Non-Linear Mechanics Pub Date : 2025-06-11 DOI: 10.1016/j.ijnonlinmec.2025.105186

Zirong Niu

{"title":"Probabilistic solution of high-dimensional nonlinear systems excited by combined Gaussian and Poisson white noise","authors":"Zirong Niu","doi":"10.1016/j.ijnonlinmec.2025.105186","DOIUrl":"10.1016/j.ijnonlinmec.2025.105186","url":null,"abstract":"<div><div>Determining the probability density function (PDF) solution for nonlinear systems excited to combined Gaussian and Poisson white noise is of great significance in stochastic dynamics. However, this task becomes computationally intractable for high-dimensional systems. To address this challenge, this study employs a dimension-reduction method previously developed for analyzing system responses under Gaussian white noise. Here, the method is extended to determine the stationary responses of nonlinear systems under combined Gaussian and Poisson white noise excitations. The proposed approach utilizes the generalized Fokker-Planck-Kolmogorov (GFPK) equation to describe the evolution of the system response PDF. By integrating the unconcerned state variables in the series-form GFPK equation, a one-dimensional integro-differential equation is obtained. Then, equivalent drift coefficients are introduced for this dimension-reduced GFPK equation, whose equivalent form is still a one-dimensional forward GFPK equation. Finally, the fourth-order finite difference method (FDM) is applied to solve this dimension-reduced GFPK equation, and its stationary velocity responses are obtained. A six degree-of-freedom (DOF) coupled Duffing-van der Pol system and an 8-DOF system with nonlinear terms in the velocities are demonstrated to validate the proposed approach. Numerical results show that the proposed approach is in good agreement with the Monte Carlo simulation (MCS) results. In addition, some parameters, such as nonzero mean impulse amplitudes of the Poisson noise, are discussed in the examples.</div></div>","PeriodicalId":50303,"journal":{"name":"International Journal of Non-Linear Mechanics","volume":"178 ","pages":"Article 105186"},"PeriodicalIF":2.8,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144470021","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Pacemaker position and network topology affect the synchronization patterns in coupled Huber–Braun neurons 起搏器位置和网络拓扑结构影响耦合Huber-Braun神经元的同步模式

IF 2.8 3区工程技术

International Journal of Non-Linear Mechanics Pub Date : 2025-06-07 DOI: 10.1016/j.ijnonlinmec.2025.105173

Agustín Farrera-Megchun , Pablo Padilla-Longoria , Jesús Espinal-Enríquez , Gerardo J. Escalera Santos , Roberto Bernal-Jaquez

{"title":"Pacemaker position and network topology affect the synchronization patterns in coupled Huber–Braun neurons","authors":"Agustín Farrera-Megchun , Pablo Padilla-Longoria , Jesús Espinal-Enríquez , Gerardo J. Escalera Santos , Roberto Bernal-Jaquez","doi":"10.1016/j.ijnonlinmec.2025.105173","DOIUrl":"10.1016/j.ijnonlinmec.2025.105173","url":null,"abstract":"<div><div>Neural synchronization is a fundamental process underlying brain function. However, the interplay between the neuron’s position in the network and its impact on synchronization is not fully understood. This paper examines the impact of a pacemaker on neural synchronization and their firing patterns using the Huber–Braun model. This examination is carried out through numerical analysis, utilizing established metrics such as Inter-Spike Interval (ISI) bifurcation and the order parameter, R. Our observations indicate that within small-scale networks, varying structural arrangements—namely, linear chains, rectangular configurations, and regular network models—can elicit diverse collective behaviors. These include the emergence of chimera states, anomalous synchronization patterns, and cluster synchronization phenomena. We further applied an Eigenvector-based method to analyze and verify cluster synchronization in specific cases. Additionally, we present evidence that links quasi-Laplacian centrality to the threshold of coupling strength required for synchronization in these networks.</div></div>","PeriodicalId":50303,"journal":{"name":"International Journal of Non-Linear Mechanics","volume":"178 ","pages":"Article 105173"},"PeriodicalIF":2.8,"publicationDate":"2025-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144239367","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Non-linear finite element damage modeling after multiple cyclic loading of rubberlike materials 类橡胶材料多次循环加载后非线性有限元损伤建模

IF 2.8 3区工程技术

International Journal of Non-Linear Mechanics Pub Date : 2025-06-06 DOI: 10.1016/j.ijnonlinmec.2025.105170

Robert Eberlein , Claus Wrana

引用次数: 0

Parameter identification of lap-type joints based on Bouc–Wen–Bilinear model and event-driven steady-state response sensitivity method 基于bouc - wen -双线性模型和事件驱动稳态响应灵敏度法的搭接节点参数辨识

IF 2.8 3区工程技术

International Journal of Non-Linear Mechanics Pub Date : 2025-06-04 DOI: 10.1016/j.ijnonlinmec.2025.105157

Huasong Liao, Zhong-Rong Lu, Jike Liu, Li Wang, Dahao Yang

{"title":"Parameter identification of lap-type joints based on Bouc–Wen–Bilinear model and event-driven steady-state response sensitivity method","authors":"Huasong Liao, Zhong-Rong Lu, Jike Liu, Li Wang, Dahao Yang","doi":"10.1016/j.ijnonlinmec.2025.105157","DOIUrl":"10.1016/j.ijnonlinmec.2025.105157","url":null,"abstract":"<div><div>The pursuit of accurately representing the frictional behavior of joint interfaces has led to the development of numerous Iwan models, each distinguished by its unique density function. However, deriving the density function that most accurately represents the frictional hysteresis in bolted joints is still a significant challenge, primarily due to epistemic uncertainties associated with interface characteristics. This paper proposes a novel Bouc–Wen–Bilinear (BWB) Iwan-type model, wherein the model parameters are identified directly from hysteretic curves rather than relying on specific density functions. This novel model simulates the micro-slip behavior of the joint interfaces by the Bouc–Wen model instead of the integral formulation of density functions. To calibrate lap-type joints, steady-state response data, accurately capturing the dominant friction mechanisms inherent in bolted joints, is integrated with an event-driven sensitivity analysis method, resulting in a tailored event-driven steady-state response sensitivity method. Furthermore, a normalization technique is proposed and incorporated into the tailored method to address the order-of-magnitude discrepancies between model parameters and response variables. Numerical simulations and experiment studies show that the proposed BWB model efficiently represents the frictional hysteresis of lap-type joints.</div></div>","PeriodicalId":50303,"journal":{"name":"International Journal of Non-Linear Mechanics","volume":"178 ","pages":"Article 105157"},"PeriodicalIF":2.8,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144229852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 perturbation approach to two-phases, non-local, fully deformable beams 两相，非局部，完全可变形梁的微扰方法

IF 2.8 3区工程技术

International Journal of Non-Linear Mechanics Pub Date : 2025-06-02 DOI: 10.1016/j.ijnonlinmec.2025.105136

Uğurcan Eroğlu , Giuseppe Ruta

{"title":"A perturbation approach to two-phases, non-local, fully deformable beams","authors":"Uğurcan Eroğlu , Giuseppe Ruta","doi":"10.1016/j.ijnonlinmec.2025.105136","DOIUrl":"10.1016/j.ijnonlinmec.2025.105136","url":null,"abstract":"<div><div>The local theory of elasticity (inner forces are sensible at insensible intermolecular distances) faces inconsistencies and limitations when one considers bodies at very small scales, i.e., with characteristic dimensions that are not several orders of magnitude greater than the intermolecular lengths, even in a linear setting. The so-called <em>quasi-continuum models</em>, preserving the principles of kinematics and balance of ordinary continuum mechanics while incorporating a richer description of inner forces at the constitutive level, attempt to mitigate this issue. One such model, well-known and commonly adopted in the last years, is due to Eringen and linearly expresses stress in terms of strain in a differential or integral form, by resorting to the convolution of a kernel function. This model, while successful for infinite media, encounters possible drawbacks when applied to finite domains, necessitating the imposition of “constitutive boundary conditions” of uncertain physical meaning. A series of alternative proposals in the literature try to overcome such difficulty; in the present contribution, we apply a perturbation procedure that circumvents this requirement. We apply this methodology to analyse paradigmatic problems of statics and free dynamics for fully deformable beams, and we present closed-form first-order expressions for benchmark scenarios, avoiding the necessity to use the constitutive boundary conditions. The solutions for purely flexible, Bernoulli–Euler, beams can be attained as a particular case of those provided here.</div></div>","PeriodicalId":50303,"journal":{"name":"International Journal of Non-Linear Mechanics","volume":"178 ","pages":"Article 105136"},"PeriodicalIF":2.8,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144223478","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Infrasound amplification using simple strongly nonlinear granular metamaterials 利用简单的强非线性颗粒超材料进行次声放大

IF 2.8 3区工程技术

International Journal of Non-Linear Mechanics Pub Date : 2025-06-02 DOI: 10.1016/j.ijnonlinmec.2025.105160

Elbens Carlos Viana Reis , Luis Paulo Silveira Machado , Surajit Sen

{"title":"Infrasound amplification using simple strongly nonlinear granular metamaterials","authors":"Elbens Carlos Viana Reis , Luis Paulo Silveira Machado , Surajit Sen","doi":"10.1016/j.ijnonlinmec.2025.105160","DOIUrl":"10.1016/j.ijnonlinmec.2025.105160","url":null,"abstract":"<div><div>Monodispersed and inverse tapered granular chains with grain sizes varying uniformly from small to large under external harmonic excitations are numerically investigated. The control parameters are the number of granules, driving amplitude, driving frequency, and tapering parameter. The frequency response is analyzed using the transfer function, where properties of transmission, amplification, and filtering of signals are observed. For monodispersed chains, amplification peaks are described by functions of the control parameters. For sufficiently long monodispersed chains, signals at low frequencies (<span><math><mrow><mo>≈</mo><mtext>10</mtext><mspace></mspace><mtext>Hz</mtext></mrow></math></span>) are amplified. Inverse tapered chains exhibit similar behavior with shorter chain lengths, as do monodispersed chains modeled with forces between granules with nonlinearity greater than that of the Hertzian contact law. Potential applications are in the fields of geosciences and oceanography, life sciences, military applications, and environmental monitoring.</div></div>","PeriodicalId":50303,"journal":{"name":"International Journal of Non-Linear Mechanics","volume":"178 ","pages":"Article 105160"},"PeriodicalIF":2.8,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144204378","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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