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| Rapid Analysis Method of Strength for Aircraft Pipeline |
| CHEN Xiaoyu1 , QIAN Wenqing1 , BAO Yidong1 , SHU Yang2 , CUN Wenyuan 1,2 |
| (1. College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China; 2. Product Research and Development Department, AVIC Chengdu Aircraft Industrial (Group) Co., Ltd., Chengdu 610092, China) |
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Abstract Aiming at the difficulties in the overall analysis of the failure of aircraft pipelines, a rapid method for analyzing the strength of aircraft pipelines is proposed. Combining CAEPIPE software with ABAQUS software, the finite element method is used to simulate the strength of the aircraft pipeline. For the analysis difficulties caused by the existence of flexible joints in aircraft piping systems, first, the CAEPIPE software is used to analyze the pipeline system as a whole, eliminating the complex iterative calculation for flexible joints in the traditional overall analysis. Then, based on the overall analysis, further detailed analysis of the dangerous area using ABAQUS software is carried out to ensure the accuracy of the intensity analysis. The proposed analysis method greatly improves the efficiency of the analysis based on the reliability of the strength analysis.The research work has reference value for clarifying changes in aircraft pipelines after loading, studying the failure mode of pipelines, checking pipelines strength, and optimizing the piping system structure.
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2020, 
