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| Design and Test Analysis of Vibration Fixture for a Missile |
| Received:May 27, 2021 Revised:July 17, 2021 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2021.10.003 |
| KeyWord:fixture design finite element method modal analysis vibration test |
| Author | Institution |
| ZHAO Xin |
63870 Unit of The Chinese People’s Liberation Army, Huayin , China |
| ZHENG Xing-shuai |
63870 Unit of The Chinese People’s Liberation Army, Huayin , China |
| LI Bo |
63870 Unit of The Chinese People’s Liberation Army, Huayin , China |
| DU Chao-qun |
63870 Unit of The Chinese People’s Liberation Army, Huayin , China |
| ZHU Hui |
63870 Unit of The Chinese People’s Liberation Army, Huayin , China |
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| Abstract: |
| A fixture is designed to meet the vibration test requirement of the missile. The vibration fixture was designed using the collaborative analysis method of both SolidWorks and Workbench software. Firstly, SolidWorks was used to build the solid model of the missile vibration fixture, and then the modal analysis of the fixture was performed in Workbench using the finite element method. According to the modal analysis results, a fixture that meets the design requirements is obtained after several structural modifications and analytical calculations of the fixture. After machining and fabricating the designed fixture, The transfer characteristic analysis of the fixture is carried out on the shaker to verify the results of the analysis and design after the fixture is manufactured. According to the variation trend of the modal shapes, the inherent frequencies can be increased by enhancing the thickness of the bottom plate and vertical plate of the fixture. The first-order inherent frequency reaches 311.68 Hz by increasing the thickness of the bottom plate and vertical plate to 30.0 mm. The manufactured fixture is fixed on the shaker according to the practical test method, and the inherent frequency of the fixture is obtained with 410.0 Hz after the dynamic response test for the fixture. The objective is attained for the fundamental frequency of the fixture is greater than the tested object, and the dynamic characteristic requirement of the fixture is satisfied. |
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