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Nonlinear Vibration of a Micro Piezoelectric Precision Drive System
Chong Li1,2, Wei Zhong3, Jiwen Fang4
1School of Mechanical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China. lichong@just.edu.cn.
Micromachines
|March 1, 2019
Summary
This study introduces a micro piezoelectric precision drive system, highlighting its compact design and high torque. Research reveals nonlinear intensity decreases with more teeth, optimizing system performance and reducing vibrations.
Area of Science:
- Mechanical Engineering
- Materials Science
- Physics
Background:
- Piezoelectric actuators offer precise motion control.
- Micro-scale systems require careful dynamic modeling.
- Nonlinear dynamics can impact system stability and performance.
Purpose of the Study:
- To propose and analyze a novel micro piezoelectric precision drive system.
- To establish and solve the nonlinear dynamic model of the system.
- To investigate the relationship between system parameters and nonlinear behavior.
Main Methods:
- Development of a micro piezoelectric precision drive system.
- Establishment of the nonlinear dynamic model and equations.
- Application of Linz Ted-Poincaré and perturbation methods for solution.
- Analysis of nonlinear intensity concerning meshing teeth and rotor dynamics.
Main Results:
- The proposed system exhibits small size, high transmission ratio, and large output torque.
- Nonlinear intensity is inversely proportional to the number of meshing movable teeth.
- The rotor is identified as the component most susceptible to nonlinear phenomena.
Conclusions:
- The findings provide a basis for optimizing the dimensions of micro piezoelectric precision drive systems.
- The research offers insights into reducing operational vibrations through parameter control.
- Understanding nonlinear dynamics is crucial for efficient micro-drive system design.
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