Optimization analysis of piezoelectric actuator based on energy transfer

Area of Science:

• Mechanical Engineering
• Materials Science
• Electrical Engineering

Background:

• Piezoelectric actuators are crucial components in various applications requiring precise motion control.
• Optimizing piezoelectric actuator performance is essential for enhancing device efficiency and functionality.
• Existing optimization methods may not fully leverage energy transfer principles for performance enhancement.

Purpose of the Study:

• To optimize piezoelectric actuator performance using the power flow method based on energy transfer theory.
• To investigate the influence of actuator parameters on power flow amplitude for targeted optimization.
• To experimentally validate the effectiveness of the proposed optimization strategy.

Main Methods:

• Performed mode analysis of the piezoelectric actuator and discretized it based on operational mode nodes.
• Established an equivalent mechanical network using Norton's equivalent circuit.
• Derived and applied the power flow expression to optimize actuator parameters through simulation analysis.

Main Results:

• Simulation analysis identified key actuator parameters influencing power flow amplitude.
• The optimized piezoelectric actuator exhibited an 8.3% increase in output force.
• The optimized piezoelectric actuator demonstrated a 22% increase in output power compared to the original design.

Conclusions:

• The power flow method, grounded in energy transfer theory, is effective for optimizing piezoelectric actuators.
• The developed optimization strategy significantly improves both the output force and power of piezoelectric actuators.
• Experimental validation confirms the practical efficacy of the proposed optimization approach for piezoelectric actuator enhancement.