Analytical modeling, optimization and testing of a compound bridge-type compliant displacement amplifier

• Published in: Mechanism and machine theory Vol. 46; no. 2; pp. 183 - 200
• Main Authors: Xu, Qingsong, Li, Yangmin
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 01.02.2011; Elsevier
• Subjects: Amplification; Amplifiers; Applied sciences; Compliant mechanisms; Displacement; Drives; Exact sciences and technology; Finite element method; Finite-element analysis; Flexure hinges; Linkage mechanisms, cams; Mathematical analysis; Mathematical models; Mechanical amplifier; Mechanical engineering. Machine design; Nanostructure; Optimization; Optimum design; Piezoelectric actuation; Precision engineering, watch making; Stiffness; Flexure hinges; Optimum design; Compliant mechanisms; Finite-element analysis; Mechanical amplifier; Piezoelectric actuation; Compliant mechanism; Positioning; Evolutionary algorithm; Mechanical drive; Bernoulli Euler model; Amplifier; Experimental study; Modeling; Particle swarm optimization; Finite element method; Nanometer scale; Resonance frequency; Piezoelectricity; Actuator; Workspace

This paper investigates a flexure-based compound bridge-type (CBT) displacement amplifier for piezoelectric drives. In addition to the advantages of large amplification ratio and compact size, the CBT amplifier has a larger lateral stiffness and is more suitable for actuator isolation and protection...