双稳态功能梯度磁电弹性板的非线性多点冲击:基于双稳态结构的相互作用分析与主动控制策略

IF 3.4 2区 数学 Q1 MATHEMATICS, APPLIED
Lizhi Li , Yiru Ren , Lu Nie
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引用次数: 0

摘要

揭示多点碰撞中刚度非线性与机电耦合效应之间的耦合关系对智能变形结构的发展具有重要意义。研究了双稳态梯度功能磁-电弹性(FG-MEE)板的多点冲击响应和主动控制,重点研究了主动控制性能和双稳态特性的影响机理。在Reddy高阶剪切板理论模型的基础上,建立了考虑双稳态结构的非线性几何关系,并对多点冲击模型进行了扩展。为了实现多点冲击下的高效结构设计,引入了多物理场主动控制策略。在多物理场中,建立了双稳态梯度磁电弹性板多点冲击的非线性动力学模型。提出了一种扩展的两步摄动方法来求解由磁-电-机械效应驱动的双稳态结构。为了得到双稳定FG-MEE板多点冲击的近似解,将扩展的两步摄动法-伽辽金法进一步发展为高阶形式。最后,系统地揭示了多点冲击中刚度非线性与机电效应之间的耦合关系,并对多点冲击下的主动控制性能进行了评价。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Nonlinear multi-point impacts of the bi-stable functional gradient magneto-electro-elastic plate: Interaction analysis and active control strategy based on bistable configuration
Revealing the coupling correlations between stiffness nonlinearity and magneto-electro-mechanical effect in multi-point impacts contributes significantly to the advancement of intelligent morphing structures. Multi-point impact responses and active control of bi-stable functional gradient magneto-electro-elastic (FG-MEE) plates are investigated, focusing on influence mechanism of the active control performance and the bi-stable characteristics. Based on the Reddy high-order shear plate theory model, the nonlinear geometric relationship considering the bi-stable configuration is established, and the multi-point impact model is extended. To achieve efficient structural design in multi-point impacts, the active control strategy in multi-physics fields is introduced. In the multi-physical field, the nonlinear dynamic model for multi-point impact involving the bi-stable functionally graded magneto-electro-elastic plate is established. The expanded two-step perturbation method is proposed to solve the bi-stable configuration driven by the magneto-electro-mechanical effect. To obtain the approximate solution for the multi-point impact of the bi-stable FG-MEE plate, the extended two-step perturbation method-Galerkin method is further developed to the higher-order form. Ultimately, coupling correlations between stiffness nonlinearity and magneto-electro-mechanical effect in the multi-point impacts are systematically revealed, and the active control performance is evaluated under the influence of multi-point impact.
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来源期刊
Communications in Nonlinear Science and Numerical Simulation
Communications in Nonlinear Science and Numerical Simulation MATHEMATICS, APPLIED-MATHEMATICS, INTERDISCIPLINARY APPLICATIONS
CiteScore
6.80
自引率
7.70%
发文量
378
审稿时长
78 days
期刊介绍: The journal publishes original research findings on experimental observation, mathematical modeling, theoretical analysis and numerical simulation, for more accurate description, better prediction or novel application, of nonlinear phenomena in science and engineering. It offers a venue for researchers to make rapid exchange of ideas and techniques in nonlinear science and complexity. The submission of manuscripts with cross-disciplinary approaches in nonlinear science and complexity is particularly encouraged. Topics of interest: Nonlinear differential or delay equations, Lie group analysis and asymptotic methods, Discontinuous systems, Fractals, Fractional calculus and dynamics, Nonlinear effects in quantum mechanics, Nonlinear stochastic processes, Experimental nonlinear science, Time-series and signal analysis, Computational methods and simulations in nonlinear science and engineering, Control of dynamical systems, Synchronization, Lyapunov analysis, High-dimensional chaos and turbulence, Chaos in Hamiltonian systems, Integrable systems and solitons, Collective behavior in many-body systems, Biological physics and networks, Nonlinear mechanical systems, Complex systems and complexity. No length limitation for contributions is set, but only concisely written manuscripts are published. Brief papers are published on the basis of Rapid Communications. Discussions of previously published papers are welcome.
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