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| Experimental Research on Vibration Characteristics of Aeroengine Blade |
| Received:August 14, 2017 Revised:February 15, 2018 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/ issn.1672-9242.2018.02.016 |
| KeyWord:blade modal analysis vibration test vibration characteristics |
| Author | Institution |
| YANG Wen-xin |
Qingdao Sushi Haice Testing Technology Co., Ltd, Qingdao , China |
| CAI Zeng-jie |
Qingdao Sushi Haice Testing Technology Co., Ltd, Qingdao , China |
| LU Jin-bin |
Qingdao Sushi Haice Testing Technology Co., Ltd, Qingdao , China |
| WANG Yan-fang |
Qingdao Sushi Haice Testing Technology Co., Ltd, Qingdao , China |
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| Abstract: |
| Objective To obtain aeroengine blade first-order bending vibration frequency and the relationship between the stress of the blade and the natural frequency of the blade and the amplitude of the blade, through theoretical calculation and experimental verification. Methods Finite element analysis software was adopted for modal analysis of blade, the first-order bending vibration frequency was obtained, and the first-order bending vibration frequency of blade was verified by the frequency sweep test on the vibration test system; then high stress vibration test was carried out. Results The theoretical calculation value of blade bending vibration frequency was 3584 Hz, and the experimental value was 3286 Hz, the error was 8.31% and the requirement of less than 10% of engineering error was met. The relationship between the stress of the blade and the natural frequency of the blade and the amplitude of the blade was σ=1.8759af. Conclusion The first-order bending vibration frequency of blade and the relationship between stress of blade and the natural frequency of blade and the amplitude of blade are obtained. |
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