DESIGN OF A NEW COMPLIANT MECHANICAL AMPLIFIER
Updated: Mar 30
A compliant mechanical amplifier (CMA) based on the new topology is designed to amplify the stroke of a piezoelectric actuator. The new CMA can convert the motion generated by a PZT actuator with a large amplification ratio in a very compact size, and it has a high natural frequency (573 Hz) and no lateral displacement.
The amplification mechanism based on the compliant mechanism is a special type of compliant mechanism with a proper design of topology and geometry. The design goal is to achieve a large amplification ratio that can, however, compromise the generating force or the natural frequency of an amplification mechanism.
These mechanisms have problems such as the presence of a lateral displacement and/or a low natural frequency. Specifically, the following issues are there:
The topology synthesis of mechanical amplifiers,
The design of the flexure hinges for CMA, and
The fine-tuning of the design parameters
Topology of mechanical amplifiers thus contains the fundamental features that are responsible for the characteristics and performances of mechanical amplifiers.