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| Dynamic Control Method of Typical Equipment Supporter |
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| DOI：10.7643/issn.1672-9242.2022.06.000 |
| KeyWord:equipment supporter random vibration dynamic characteristics control method finite element method aerospace engineering |
| Author | Institution |
| LI Yu-qing |
China Academy of Launch Vehicle Technology, Beijing , China |
| SHAO Xu-dong |
China Academy of Launch Vehicle Technology, Beijing , China |
| LI Bing-wei |
China Academy of Launch Vehicle Technology, Beijing , China |
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| Abstract: |
| In aerospace engineering, equipment supporters are generally used to install equipment. However, the serious amplification of the vibration environment by the supporter will affect the reliability of the equipment, and may bring great hidden dangers to the flight of the aircraft. Therefore, it is necessary to research the dynamic control method of the typical equipment supporter. The dynamic characteristic indexes for supporter dynamic characteristic control is proposed, which can comprehensively characterize the dynamic characteristics of equipment supporter under random vibration excitation, and an optimization target can be constructed to effectively control the dynamic characteristics of support based on the proposed indexes. The dynamic control method of a typical equipment supporter is proposed, and the dynamic characteristic design of supporter is integrated into the structure design process. The random vibration tests and finite element simulations are carried out for a typical equipment supporter. The accuracy of the random vibration response prediction method is then verified, and the dynamic control is carried out on this basis. The dynamic control of the equipment supporter as an objective was dynamics controlled, and the vibration magnitude magnification of the supporter relative to the installation base was reduced from 4.2 to 1.67. The results show that the dynamic control method of the typical equipment supporter proposed can improve the dynamic characteristics of the equipment supporter in the early stage of development, which is of great significance to improve the reliability and environmental adaptability of the aircraft. |
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