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| Design of Loading Device for Large Scale Liquid Rocket Engine Frame Vibration Test |
| Received:September 12, 2018 Revised:March 25, 2019 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/ issn.1672-9242.2019.03.019 |
| KeyWord:liquid rocket engine vibration test dynamics FEM (finite element method) |
| Author | Institution |
| WEI Ying-kui |
Beijing Institute of Structure and Environment Engineering, Beijing , China |
| BI Jing-dan |
Beijing Institute of Structure and Environment Engineering, Beijing , China |
| HU Yan-ping |
Beijing Institute of Structure and Environment Engineering, Beijing , China |
| DAI Zhen-meng |
Beijing Institute of Structure and Environment Engineering, Beijing , China |
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| Abstract: |
| Objective To design a loading device for vibration test of large-scale liquid rocket engine frame, so that the vi-bration test of this type of engine frame can be completed successfully. Methods On the basis of satisfying the connection strength, the layout of the structure such as the stiffener of the loading device was reasonably designed, and the loading device was optimized by the finite element method to further improve the first inherent frequency of the loading device. Results The design of loading device for vibration test is completed and applied in the vibration test of this type of frame. Conclusion The first inherent frequency of the loading device is higher, which fully meets the loading requirements of vibration test. |
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