Dynamic Analysis of a Fatigue Test Bench for High Precision Flexure Hinges
Dynamic Analysis of a Fatigue Test Bench for High Precision Flexure Hinges
复制标题
高精度柔性铰链疲劳试验台动态分析
DOI：
10.1007/978-3-319-45387-3_15
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发表时间：
2017
期刊：
影响因子：
--
通讯作者：
Corves
中科院分区：
文献类型：
--
作者：
Schoenen;Hüsing;Corves
一般技术的发展和对顺从机制的更好了解促进了其应用的增长。当前科学的重点是开发新的铰链形状或改进现有的铰链类型。尽管可以假设基于制造的影响对柔性铰链的性能具有至关重要的影响，但目前的研究活动中缺少对柔性接头疲劳的实验研究。为此，搭建了疲劳试验台，研究制造工艺对高精度柔性铰链性能的影响。初步调查显示负载循环较高。因此，增加测试频率以减少总体测试时间可能很有用。然而，这会导致惯性力和力矩增加，从而进一步影响测试样本。因此，本文分析了测试台的动态行为。推导出运动学方程。然后计算作用在测试样本上的实际力并与准静态载荷进行比较。
General technological development and better knowledge of compliant mechanisms increase the growth in their applications. In current science the focus is on developing new hinge shapes or improving existing hinge types. Even though it can be assumed that the manufacturing based influences have a crucial impact on the performance of flexure hinges, experimental studies of the fatigue of compliant joints are currently missing in research activities. Thus, a test bench for fatigue testing was built to study the manufacturing based influences on the performance of high precision flexure hinges. First investigations show high load cycles. Hence it might be useful to increase the test frequency to reduce the overall testing time. Nevertheless, this causes increased inertia forces and moments which could additionally affect the test specimens. Accordingly, this contribution analyzed the dynamic behavior of the test bench. The kinematic equations are derived. Afterwards the actual forces acting on the test specimens are calculated and compared to a quasi-static load.