Design and Simulation of a Novel Inertial Switch with Arc Cantilever

摘要：

　　In order to solve the problems of short contacting time and weak ability under high impact of the existing MEMS inertial switch,based on the manufacture of MEMS,a micro switch with prevented blocks is designed.The switch consists of a suspended circle proof mass as movable electrode,cantilever beams as radial fixed electrode,a circle loop as axial electrode and eight prevented blocks.The cantilever beams can realize the elastic contact when the proof mass impacted on radial electrode and prolong the contact time.the maximum displacement is limited by the prevented blocks,so the switch can bear the certain extent high shock.The results illustrate that the switch-on time is more than 40us when half-sine wave shock acceleration with amplitude 450g impulse width 1ms is applied to the switch.And under a 20000g high shock,the switch also can work without damage.

关键词： Inertial Switch,Contact Time,MEMS,High Shock

作者: Pingxin YU Zhanwen XI Weirong NIE Yun CAO

作者单位: School of mechanical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China

会议类型: 国际会议

会议名称: The 5th International Conference on Mechanical Engineering and Mechanics(第五届国际机械工程与力学会议)

会议地点: 江苏扬州

会议语种:英文

页码: 543-547

在线出版日期: 2014-08-21（万方平台首次上网日期，不代表论文的发表时间）