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On the Design of a Micro Switch to Use as an Airbag Activator

[+] Author Affiliations
Saber Azizi, Farrokh Mobadersani

Urmia University of Technology, Urmia, Iran

Ghader Rezazadeh

Urmia University, Urmia, Iran

Paper No. ESDA2010-24443, pp. 585-589; 5 pages
  • ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis
  • ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis, Volume 5
  • Istanbul, Turkey, July 12–14, 2010
  • Conference Sponsors: International
  • ISBN: 978-0-7918-4919-4 | eISBN: 978-0-7918-3877-8
  • Copyright © 2010 by ASME


The object of the present study is to design a micro switch witch activates the airbag of a car when the amplitude of the acceleration of the accident exceeds the critical one. The response time of the micro switch is supposed to be 5 ms. Micro switch consist of a proof mass connected to a clamped-clamped micro beam. The nonlinear partial integro-differential equation of the motion is solved using FEM. According to the results it is recommended to use micro switches instead of accelerometers as airbag activators in car’s safety systems.

Copyright © 2010 by ASME
Topics: Design , Switches , Airbags



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