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结构参数对并联型双轴直圆柔性铰链刚度的影响
Authors
何涛
季晨光
+4 more
李成
王传礼
蒋浩
陈国瑜
Publication date
1 January 2020
Publisher
Editorial Office of Journal of Mechanical Transmission
Doi
Cite
Abstract
为了深入分析并联型双轴直圆柔性铰链的微位移变形性能,基于弹性梁的小变形假设、变截面连续梁弯曲理论及微积分叠加原理,推导出其角变形及转角刚度计算公式;根据胡克定律,得到拉压变形时的伸长量和拉伸刚度计算公式,并对柔性铰链在不同结构参数下进行有限元分析;同时,对影响转角刚度和拉伸刚度的结构参数进行研究。结果表明,转角刚度有限元解与解析解的误差在7%以内,拉伸刚度有限元解与解析解的误差在3%以内;刚度与最小厚度、弹性模量成正比关系,与切割半径成反比关系,且最小厚度对刚度的影响最显著,切割半径次之,弾性模量最弱
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Last time updated on 06/04/2023