In order to improve the forward design and optimization ability of vibration fixture for aero-engine fuel control system accessories,a hydraulic mechanical device product vibration fixture is taken as the research object,and the vibration fixture structure size parameter is taken as the design variable,and the size constraint of the shaking table and the weight index requirement of the fixture are taken as the constraint conditions.By using multi-objective optimization design such as multi-objective genetic algorithm,the first order natural frequency of the vibration fixture is increased by 22.5％,the weight of the fixture is reduced by 11.2％,and the performance of the vibration fixture is improved.The feasibility and effectiveness of the design method are proved by optimization verification and comparison.This method can be applied to the optimization design of vibration fixture for subsequent products,so as to improve the quality of vibration transmission characteristics of vibration fixture and lay a foundation for ensuring the accuracy of vibration test results.
vibrating fixtureparametric modelingmulti-objective optimizationnatural frequency
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