A novel MEMS parallel-beam acceleration switch

被引：0
|
作者：
Zhao, Jian [1 ]
Jia, Jianyuan [1 ]
Chen, Guangyan [2 ]
机构：
[1] Xidian Univ, Res Inst Mechatron, Sch Elec Mech Engn, Xian 710071, Peoples R China
[2] China Acad Engn Phys, Inst Elect Engn, Miayang 621900, Peoples R China
来源：
PROCEEDINGS OF THE 2006 IEEE/ASME INTERNATIONAL CONFERENCE ON MECHATRONIC AND EMBEDDED SYSTEMS AND APPLICATIONS | 2006年
基金：
美国国家科学基金会;
关键词：
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
By utilizing the threshold characteristic and nonlinear transversal stiffness of a post-buckling beam with both ends fixed, a novel parallel-beam acceleration switch was designed. The dynamic model of the switch subjected to multi-forces was established by using post-buckling theory of beams, the damping force was calculated using the Reynolds Equations, and the tip-to-drain contact was modeled by elastic Hertz theory. The good threshold characteristic, high contact reliability and anti-jamming performance of the switch were showed after the dynamic numerical simulation. The effect of the damping force and the contact force on the reliability of the switch was analyzed. The response time is less than 6ms when the switch is triggered by a threshold acceleration a(c)=25g, and the switch cut off quickly when the acceleration is under a(d)=5g. Therefore, the feasibility of applying the post-buckled beam in designing the acceleration switches was validated.
引用
收藏
页码：349 / +
页数：2
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