The calculation method of reliability based on MEMS Safety and Arming device

Author

Wang Fufu ; Lou Wenzhong ; Liu Fangyi ; Wang Dakui ; Jin Xin ; Lu Jun ; Wu Jian ; Guo Xuhong ; Zhang Zhe

Author_Institution

State Key Lab. of Mechatron. Eng. & Control, Beijing Inst. of Technol., Beijing, China

fYear

2015

fDate

7-11 April 2015

Firstpage

426

Lastpage

429

Abstract

In this paper, aiming at the failure mode with MEMS spring fracture of MEMS S&A (Safety and Arming) device, the dynamic simulation and response surface method are combined to use to establish the relationship between the structure response and the structure random variables. The stress values are fitted by the least square method, and the binary quadratic equation, whose variables are the MEMS spring´s elastic modulus, the MEMS spring´s breaking strength and thickness and the output is the value of determination function, is obtained. Finally, using Monte Carlo method for a large number of random state numerical value, obtained the MEMS spring fracture of MEMS S&A device reliability is 0.9999996.

Keywords

Monte Carlo methods; elastic moduli; fracture; fracture toughness; least squares approximations; micromechanical devices; reliability; response surface methodology; safety systems; springs (mechanical); MEMS safety-and-arming device; MEMS spring fracture; Monte Carlo method; binary quadratic equation; breaking strength; elastic modulus; failure mode; least square method; microelectromechanical systems; reliability; response surface method; thickness; Latches; Mathematical model; Micromechanical devices; Nickel; Reliability; Safety; Springs; MEMS; S&A Device; The Calculation Method;

fLanguage

English

Publisher

ieee

Conference_Titel

Nano/Micro Engineered and Molecular Systems (NEMS), 2015 IEEE 10th International Conference on

Conference_Location

Xi´an

Type

conf

DOI

10.1109/NEMS.2015.7147459

Filename

7147459