A New Family of Large-Displacement Flexural Pivots
A New Family of Large-Displacement Flexural Pivots
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新系列大位移弯曲枢轴
DOI：
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发表时间：
2007
期刊：
影响因子：
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通讯作者：
S. Bi
中科院分区：
文献类型：
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作者：
Jingjun Yu;G. Zong;Zhiwei Yu;S. Bi
本文提出了一种新的大位移弯曲枢轴系列。该系列的设计源自传统的缺口式挠曲件，具有高旋转精度和紧凑的结构。然而，与那些旧的弯曲枢轴相比，所提出的新弯曲枢轴可以提供更大的运动范围（高达 60°）。为了构造这些新挠性件的轮廓，引入了基于大挠度轴向屈曲理论的方法来确定其初始柔性曲率轮廓。此外，使用有限元分析对所提出的挠性件进行了特性比较和优化。版权所有 © 2007 by ASME
This paper proposes a new family of large-displacement flexural pivots. The design in this family is derived from the conventional notch-type flexures, which are capable of high rotational precision and a compact structure. However, the proposed new flexural pivots can offer a much larger range of motion (up to 60°) compared with those old flexures. In order to construct the profile of these new flexures, a method based on large-deflection axial buckling theory was introduced to determine their initial flexible curvature profiles. In addition, the characteristic comparisons and optimizations of the proposed flexures were made using Finite Element Analysis.Copyright © 2007 by ASME