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| Application of Finite Element Simulation in Vibration Structure Fatigue Analysis |
| Received:February 20, 2013 Revised:July 01, 2013 |
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| DOI：10.7643/issn.1672-9242.2013.04.007 |
| KeyWord:finite element fatigue damage frequency domain method |
| Author | Institution |
| LIU Long-tao |
空军驻北京地区军事代表室，北京School of Reliability and System Engineering，Beihang University，Beijing，China |
| LI Chuan-ri |
空军驻北京地区军事代表室，北京School of Reliability and System Engineering，Beihang University，Beijing，China |
| MA Tian |
空军驻北京地区军事代表室，北京School of Reliability and System Engineering，Beihang University，Beijing，China |
| QIAO Liang |
空军驻北京地区军事代表室，北京School of Reliability and System Engineering，Beihang University，Beijing，ChinaMilitary Representative Officeof Air Force at Beijing Prefecture，Beijing，China |
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| Abstract: |
| Modal analysis and random vibrationanalysis of airborne product structure was carried out using the finite element analysis software ANSYS for its fatigue analysis. The finite element model was corrected with modal test. Stress response power spectrum was obtained from random vibration analysis. Fatigue damage of the structure was calculated using frequency domain method. The simulation results are in agreement with the reliability enhancement testing results. An optimization scheme for the product structure design was given. |
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