Structural Design and Characteristic Research of Product Vibration Test Fixture Based on High Frequency Response Characteristics

Servo products usually bear harsh mechanical environment under real flight condition. In order to assess the reliability and effectiveness of servo products, it is necessary to conduct mechanical tests such as vibration test on servo products and analyze whether the test results meet the design requirements. The product structure cannot be directly connected with the shaking table, it is necessary to design special fixture to transfer the vibration force of the vibrating table to the specimen. The transfer characteristics and frequency response characteristics of the vibration testing fixture have a great influence to the accuracy of vibration test. It can even affect the success or failure of the experiment. The vibration table, the tooling fixture and the product constitute a complex vibration test system. The structure design of vibration fixture occupies a pivotal position in the vibration test system. Practice shows that the success of the vibration test and the credibility of the test result closely related to the structure design, material choice, manufacturing process, install and use level.