TY - JOUR
T1 - The parametric analysis of the threshold value judging mechanism in MEMS safety and arming device
AU - Wang, Fufu
AU - Lou, Wenzhong
AU - Liu, Fangyi
AU - Wang, Dakui
AU - Zhang, Mingrong
AU - Xu, Chenggang
N1 - Publisher Copyright:
© (2015) Trans Tech Publications, Switzerland.
PY - 2015/5/1
Y1 - 2015/5/1
N2 - In this paper, a mechanical MEMS S&A device has been proposed. The size of the device is 10mm×13mm×0.5mm. The role of the threshold value judging mechanism is to determine the environment suffered by centrifugal force and control the sub-centrifugal slider not movement under the threshold, so as to effectively guarantee the time of long-distance arming. Through establishing the three-dimensional model of threshold value judging mechanism, establishing the force and the parameters of locking-releasing mechanism, deriving the mathematical model according to the rigid dynamic mechanics theory and establishing the finite element model by using ANSYS/LS-DYNA, appropriate threshold value judging mechanism is designed to meet two items, one item is the deformation of threshold value rod is not enough to release sub-centrifugal slider when the speed is less than 60000r/min; the other item is deformation of threshold value rod can release sub-centrifugal slider when the speed is more than 60000r/min.
AB - In this paper, a mechanical MEMS S&A device has been proposed. The size of the device is 10mm×13mm×0.5mm. The role of the threshold value judging mechanism is to determine the environment suffered by centrifugal force and control the sub-centrifugal slider not movement under the threshold, so as to effectively guarantee the time of long-distance arming. Through establishing the three-dimensional model of threshold value judging mechanism, establishing the force and the parameters of locking-releasing mechanism, deriving the mathematical model according to the rigid dynamic mechanics theory and establishing the finite element model by using ANSYS/LS-DYNA, appropriate threshold value judging mechanism is designed to meet two items, one item is the deformation of threshold value rod is not enough to release sub-centrifugal slider when the speed is less than 60000r/min; the other item is deformation of threshold value rod can release sub-centrifugal slider when the speed is more than 60000r/min.
KW - MEMS
KW - Safety and arming device
KW - Threshold value judging mechanism
UR - http://www.scopus.com/inward/record.url?scp=84944077455&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/KEM.645-646.968
DO - 10.4028/www.scientific.net/KEM.645-646.968
M3 - Article
AN - SCOPUS:84944077455
SN - 1013-9826
VL - 645
SP - 968
EP - 971
JO - Key Engineering Materials
JF - Key Engineering Materials
ER -