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This paper presents a novel flexure-based displacement amplification mechanism to increase the effective actuation stroke of piezoelectric actuator. The proposed mechanism consists of two L-shape lever-type mechanism and one bridge-type mechanism. The flexure hinges in this mechanism are all loaded in tension and bending, which can solve the potential buckling problems. The symmetrical distribution...
This paper investigates a bridge-type compliant mechanism with elliptical shell for amplified piezoelectric actuators. Compared with the traditional bridge-type mechanism using the notch flexure hinges, this kind of mechanism has advantages of high stiffness, low stress and high resonant frequency. An analytical model for the calculations of displacement amplification ratio and input stiffness is...
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