Dynamic Study on Revolute Joint with Clearance of the Deployable Structure

被引：0
|
作者：
Wang, Sanmin [1 ]
Sun, Yuantao [1 ]
Zhi, Changjian [1 ]
机构：
[1] Northwestern Polytech Univ, Xian, Peoples R China
来源：
PROCEEDINGS OF THE FOURTEENTH INTERNATIONAL FEDERATION FOR THE PROMOTION OF MECHANISM AND MACHINE SCIENCE WORLD CONGRESS | 2015年
基金：
中国国家自然科学基金;
关键词：
deployable structure; joint clearance; contact model; dynamics; MULTIBODY SYSTEMS; IMPACT ANALYSIS; SCREW THEORY; MANIPULATORS; MECHANISMS; LINKAGES;
D O I：
10.6567/IFToMM.14TH.WC.OS11.002
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Dynamic characteristics are studied on revolute joint with clearance of the parallelogram deployable structure in the present paper. The continuous contact model based on Hertz law is used for the clearance model, taking energy dissipation into account. The modified Coulomb law is utilized for calculating the friction force during the impact process, because the Coulomb law is able to lead to the difficulty of numerical simulation. Dynamic equations of the deployable structure are obtained by adding the contact force and friction force to the dynamic model of this mechanical system, and the relevant results are obtained by the numerical simulation. By analyzing these results, the revolute joint with clearance brings some negative influence, such as vibration etc., for the deployable structure during the unfold process. The corresponding results play an important role in forecasting the dynamic characteristics and design of the deployable structure.
引用
收藏
页码：244 / 247
页数：4
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