Large deflection behavior of a flexible circular cantilever arc device subjected to inward or outward polar force
Large deflection behavior of a flexible circular cantilever arc device subjected to inward or outward polar force
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DOI：
10.12989/sem.2006.22.4.433
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发表时间：
2006-03
影响因子：
2.2
通讯作者：
S. Al-Sadder
中科院分区：
文献类型：
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作者：
S. Al-Sadder
研究了圆形悬臂圆弧装置在向内或向外极力作用下的大挠度问题。推导了两种情况下的精确椭圆积分解，并在ANSYS软件中采用大位移有限元分析对结果进行了验证，采用了一种新的建模仿真技术。精确解析解与数值方法得到了很好的一致性。根据这项研究，为工程师开发了一个设计图表，以预测设备在形成圆弧的给定角度（）时打开的向内极力所需值。这项研究在机械工程，集成电路技术，纳米技术，特别是在微机电系统（MEMs）中有几个有趣的应用，例如由于在圆形悬臂弧开关装置的固定端和自由端附着两个磁极而受到吸引或排斥磁力的memm圆形装置开关。
The problem of very large deflection of a circular cantilever arc device subjected to inward or outward polar force is studied. An exact elliptic integral solution is derived for the two cases and the results are checked using large displacement finite element analysis via the ANSYS package by performing a new novel modeling simulation technique for this problem. Excellent agreements have been obtained between the exact analytical solution and the numerical approach. From this study, a design chart for engineers is developed to predict the required value for the inward polar force for the device to switch on for a given angle forming the circular arc (). This study has several interesting applications in mechanical engineering, integrated circuit technology, nanotechnology and especially in microelectromechanical systems (MEMs) such as a MEM circular device switch subjected to attractive or repulsive magnetic forces due to the attachments of two magnetic poles at the fixed and at the free end of the circular cantilever arc switch device.