The Structure Optimization Design of Turbine-fan Exhaust Device Based on Finite Element Analysis
郑小漪 ZHENG Xiao-yi
（航空工业南京机电液压工程研究中心，航空机电系统综合航空科技重点实验室，南京 211106）
（AVIC Nanjing Engineering Institute of Aircraft Systems，Aviation Key Laboratory of Science and Technology on Aero Electromechanical System Integration，Nanjing 211106，China）
摘要：以某型涡轮风扇排气装置壳体为研究对象，建立有限元模型，在设计工况下对其加载压力循环进行有限元分析，结果表明寿命工作次数满足要求；结合实际工程应用中出现的壳体开裂问题，其裂纹位置与寿命仿真应力敏感区域吻合。针对壳体使用的应力敏感问题进行结构优化设计，并通过疲劳寿命仿真分析，避免此型涡轮风扇排气装置壳体再次出现开裂，具有较强的工程应用价值。
Abstract: A finite element model was built on the housing of a turbo-fan exhaust device for conducting a finite element analysis on its loading pressure cycling under the design conditions. The analysis results indicate that its frequency of operating life is satisfied. Besides, the cracking position of the housing in the practical engineering application was consistent with the stress-sensitive area of life simulation. Therefore, performing structural optimization design against the stress-sensitive problem in the housing use can prevent the housing of the turbo-fan exhaust device from cracking once again, together with the fatigue life simulation. The research result is valuable to engineering application.
关键词：壳体；加强筋；寿命；疲劳；优化设计
Key words: shell；stiffener；life；fatigue；optimal design
中图分类号：V434+.211 文献标识码：A 文章编号：1006-4311（2022）20-068-03
DOI:10.3969/j.issn.1006-4311.2022.20.023.
文章出处：郑小漪. 基于有限元分析的涡轮风扇排气装置结构优化改进[J]. 价值工程,2022,41(20):68-70.
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