Constraint Force Analysis of Metamorphic Joints Based on the Augmented Assur Groups
查看参考文献22篇
文摘
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In order to obtain a simple way for the force analysis of metamorphic mechanisms, the systematic method to unify the force analysis approach of metamorphic mechanisms as that of conventional planar mechanisms is proposed. A force analysis method of metamorphic mechanisms is developed by transforming the augmented Assur groups into Assur groups, so that the force analysis problem of metamorphic mechanisms is converted into the force analysis problems of conventional planar mechanisms. The constraint force change rules and values of metamorphic joints are obtained by the proposed method, and the constraint force analysis equations of revolute metamorphic joints in augmented Assur group RRRR and prismatic metamorphic joints in augmented Assur group RRPR are deduced. The constraint force analysis is illustrated by the constrained spring force design of paper folding metamorphic mechanism, and its metamorphic working process is controlled by the spring force and geometric constraints of metamorphic joints. The results of spring force show that developped design method and approach are feasible and practical. By transforming augmented Assur groups into Assur groups, a new method for the constraint force analysis of metamorphic joints is proposed firstly to provide the basis for dynamic analysis of metamorphic mechanism. |
来源
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Chinese Journal of Mechanical Engineering
,2015,28(4):747-755 【核心库】
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DOI
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10.3901/cjme.2015.0216.056
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关键词
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metamorphic joints
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constraint forces
;
augmented Assur groups
;
metamorphic mechanism
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地址
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1.
School of Mechanical Engineering & Automation, Northeastern University, Shenyang, 110819
2.
Shenyang Institute of Automation, Chinese Academy of Sciences, State Key Laboratory of Robotics, Shenyang, 110016
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语种
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英文 |
文献类型
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研究性论文 |
ISSN
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1000-9345 |
学科
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机械、仪表工业 |
基金
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国家自然科学基金
;
State Key Laboratory of Robotics of China
;
Basic Science and Research Project of Chinese National University, China
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文献收藏号
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CSCD:5472157
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