Multiple Support Point Reaction Force Calculation Considering Virtual Elastic Stiffness of Support Surfaces

被引：0

作者：

Xu J. ^{[1
]}

Qi Z. ^{[1
]}

Zhuo Y. ^{[1
]}

Liu H. ^{[2
]}

Gao L. ^{[3
]}

机构：

[1] State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian

[2] Institute of Construction Machinery, Taiyuan Heavy Industry Co., Ltd., Taiyuan

[3] Institute of Materials Handling, Material Flow and Logistics, Technical University of Munich, Munich

来源：

Zhongguo Jixie Gongcheng/China Mechanical Engineering | 2021年 / 32卷 / 22期

关键词：

Micro variable; Smoothing transition function; Support reaction force; Unilateral constraint; Virtual elastic stiffness; Virtual power;

D O I：

10.3969/j.issn.1004-132X.2021.22.004

中图分类号：

学科分类号：

摘要：

Based on the objective physical fact that the supporting surface would make the supporting point move slightly, the micro variable degrees of freedom independent of the macro constraints were introduced to describe the gap function at the support points, and the virtual elastic stiffness of the support surfaces was introduced to describe the resistance of the support surfaces. In order to overcome the difficulty of numerical solution caused by the "switch effect" of virtual elastic stiffness, the transition function was introduced to smooth that. According to the macroscopic force condition, the equilibrium equation was established, and the support reaction of the support points was obtained by solving the nonlinear equations. A variety of support reactions were calculated and compared with the experimental data to verify the effectiveness of the proposed method. © 2021, China Mechanical Engineering Magazine Office. All right reserved.

引用

页码：2681 / 2688and2696

共 21 条

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