Title :
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
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;
Conference_Titel :
Nano/Micro Engineered and Molecular Systems (NEMS), 2015 IEEE 10th International Conference on
Conference_Location :
Xi´an
DOI :
10.1109/NEMS.2015.7147459
