Fundamental frequency response analysis of local nonlinear structures with single-sided limitation

被引:0
|
作者
Sun Y. [1 ]
Wan Y. [1 ]
Chen L. [1 ]
Guo Q. [2 ]
机构
[1] Department of Mechanics and Engineering Science, Fudan University, Shanghai
[2] Shanghai Key Laboratory of Spacecraft Mechanism, Shanghai
来源
Chen, Lifen | 2018年 / Chinese Vibration Engineering Society卷 / 37期
关键词
Describing function; Fundamental frequency response; Inverse matrix updating method; Local nonlinearity; Single-sided limitation;
D O I
10.13465/j.cnki.jvs.2018.18.031
中图分类号
学科分类号
摘要
For large-scale nonlinear structures with local single-sided limitation, the fundamental frequency response characteristic is often closely related to the position and size of the limitation.The analysis method for nonlinear structures was mainly studied.The frequency domain characteristics of nonlinearity were characterized by the describing function first appeared in the nonlinear control. The inverse matrix updating method was used to reduce the processing dimension, which greatly improves the computational efficiency of frequency domain response.The numerical method Runge-Kutta was adopted to verify the effectiveness of the method. The first-order frequency response curve of a T-shaped beam was analysed by simulations and experiments. © 2018, Editorial Office of Journal of Vibration and Shock. All right reserved.
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页码:216 / 223and250
相关论文
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