TY - JOUR
T1 - A symmetrical bistable mechanism from combination of pre-shaped microbeams
AU - Hussein, Hussein
AU - Khan, F.
AU - Younis, Mohammad I.
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: This research is supported by KAUST research fund.
PY - 2020/3/19
Y1 - 2020/3/19
N2 - A bistable mechanism is proposed with symmetrical snap-through behavior between the two equilibrium positions. The mechanism is monolithic and does not require external axial load, as buckled beams. It consists of two pre-shaped beams of opposite curvature with similar properties and dimensions, which are connected after fabrication. The combination of the opposite pre-shaped beams, each having non-symmetrical bistability, results in total symmetric bistability. This symmetrical bistable mechanism provides the advantage of having the same switching force in the forward and backward directions. The concept of the new mechanism is presented, analyzed based on the snapping force curves, and tested experimentally on microfabricated prototypes.
AB - A bistable mechanism is proposed with symmetrical snap-through behavior between the two equilibrium positions. The mechanism is monolithic and does not require external axial load, as buckled beams. It consists of two pre-shaped beams of opposite curvature with similar properties and dimensions, which are connected after fabrication. The combination of the opposite pre-shaped beams, each having non-symmetrical bistability, results in total symmetric bistability. This symmetrical bistable mechanism provides the advantage of having the same switching force in the forward and backward directions. The concept of the new mechanism is presented, analyzed based on the snapping force curves, and tested experimentally on microfabricated prototypes.
UR - http://hdl.handle.net/10754/662384
UR - https://linkinghub.elsevier.com/retrieve/pii/S0924424719323350
UR - http://www.scopus.com/inward/record.url?scp=85082171377&partnerID=8YFLogxK
U2 - 10.1016/j.sna.2020.111961
DO - 10.1016/j.sna.2020.111961
M3 - Article
SN - 0924-4247
VL - 306
SP - 111961
JO - Sensors and Actuators, A: Physical
JF - Sensors and Actuators, A: Physical
ER -