Dynamic Modeling Method of Bolted Joint Interfaces Based on Nonlinear Transversely Isotropic Virtual Material

被引：3

作者：

Ma H. ^{[1
]}

Yu M.-Y. ^{[1
]}

Gao A. ^{[1
]}

Zhao C.-G. ^{[1
]}

机构：

[1] School of Mechanical Engineering & Automation, Northeastern University, Shenyang

来源：

Dongbei Daxue Xuebao/Journal of Northeastern University | 2021年 / 42卷 / 08期

关键词：

Bolted joint; Finite element method; Local dimensionality reduction; Nonlinear stiffness; Partition modeling; Virtual material;

D O I：

10.12068/j.issn.1005-3026.2021.08.008

中图分类号：

学科分类号：

摘要：

To simulate the nonlinear dynamic characteristics of bolted joint, a dynamic modeling method of bolted joint based on nonlinear transversely isotropic virtual material is proposed. Based on the finite element method, 8-node solid elements are used to construct the connected parts and the bolted joint that is simulated by the transversely isotropic virtual material, and the virtual material is fixed to the connected parts. The nonlinear virtual material is used to simulate the nonlinear stiffness characteristics of the bolted joint under different external harmonic excitation forces. In order to make the calculation of the nonlinear model more accurate, the nonlinear transversely isotropic virtual material is partitioned, and the virtual material parameters of each region are determined by the deformation of the virtual material in the region. Finally, the dimension of the model is reduced partly and the amplitude frequency response of the model is solved in time domain. The feasibility and effectiveness of the as-proposed modeling method are verified by comparing the theoretical calculation results with that of the experiments. © 2021, Editorial Department of Journal of Northeastern University. All right reserved.

引用

页码：1111 / 1119

页数：8

共 21 条

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