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Multi-objective optimization design and experiment for a magnetic micro-vibration isolator considering stiffness
Junzhong Li1, Lei Wang1, Bingzhang Cao1
1Harbin Institute of Technology, Harbin 150001, People's Republic of China.
The Review of Scientific Instruments
|August 30, 2024
Summary
This study introduces a new optimization method for magnetic vibration isolators, improving their performance in ultra-precision applications. The novel approach enhances vibration isolation by considering transmissibility and compliance, outperforming traditional methods.
Area of Science:
- Mechanical Engineering
- Materials Science
- Physics
Background:
- Vibration negatively impacts machining quality and measurement accuracy in ultra-precision processes.
- Magnetic vibration isolators offer advantages like wide isolation frequency range and vacuum compatibility.
- Conventional optimization methods for magnetic isolators have limitations in balancing performance indicators.
Purpose of the Study:
- To develop an innovative optimization strategy for quasi-zero stiffness magnetic vibration isolators.
- To enhance vibration isolation performance by integrating transmissibility and compliance.
- To overcome the limitations of conventional optimization techniques that overemphasize stiffness.
Main Methods:
- Employed particle swarm optimization for initial design.
- Developed a novel optimization approach integrating transmissibility and compliance.
- Optimized structural parameters for two types of magnetic vibration isolators using both conventional and innovative methods.
- Validated designs through simulations and experimental testing.
Main Results:
- The proposed optimization method resulted in superior magnetic vibration isolator performance compared to conventional strategies.
- Simulations and experiments confirmed the effectiveness of the novel approach.
- Isolators designed with the new method demonstrated enhanced vibration isolation capabilities.
Conclusions:
- The innovative optimization strategy provides a more effective pathway for designing and refining magnetic vibration isolators.
- This advancement offers significant improvements for ultra-precision manufacturing and measurement.
- The study validates a new approach to balancing multiple performance indicators in vibration isolation systems.
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