流热固耦合下螺杆压缩机转子拓扑优化  

Research on topology optimization of screw compressor rotor under fluid-thermo-solid coupling

作　　者：王凯 何亚银[1] 张炜 赵永强[1] WANG Kai;HE Ya-yin;ZHANG Wei;ZHAO Yong-qiang(School of Mechanical Engineering,Shaanxi University of Technology,Hanzhong 723000,China)

机构地区：[1]陕西理工大学机械工程学院,陕西汉中723000

出　　处：《陕西理工大学学报（自然科学版）》2023年第1期10-17,79,共9页Journal of Shaanxi University of Technology:Natural Science Edition

基　　金：陕西省重点研发计划项目(2017ZDXM-GY-138)。

摘　　要：为获得螺杆压缩机转子的轻量化结构,采用有限元技术与拓扑优化理论相结合的方法,对压缩机转子进行了优化设计,并在拓扑优化结果的基础上对螺杆转子重新建模,最后对优化后的模型进行仿真验证。结果表明,优化建模后的螺杆转子质量降低了20.45%;优化后的螺杆转子固有频率整体高于优化前螺杆转子的固有频率;优化后阳转子与阴转子最大变形量之和小于齿间间隙(0.5 mm),且不发生干涉,优化后螺杆转子应力最大值小于优化前螺杆转子应力最大值。综合验证,优化后的螺杆转子满足设计要求,研究结果可为空心螺杆转子设计和改进提供参考。In order to obtain the lightweight structure design of the screw compressor rotor, the study used the combination of finite element technology and topology optimization theory to realize the optimization of compressor rotor. And the screw rotor is remodeled on the basis of the topology optimization results. Finally, the optimized model is simulated and verified. The results show that: the quality of the screw rotor after optimization is reduced by 20.45%;the natural frequency of the screw rotor after optimization is higher than the natural frequency of the screw rotor before optimization;after optimization, the sum of maximum deformation of male rotor and female rotor is less than 0.5 mm of inter tooth clearance without causing any interference. The maximum value of the screw rotor stress after optimization is less than the maximum value of the screw rotor stress before optimization. Comprehensive verification shows that the optimized screw rotor meets the design requirements. The research results provide a reference for the design and improvement of the hollow screw rotor.

关 键 词：螺杆压缩机 螺杆转子 流热固耦合 拓扑优化 

分 类 号：TH122[机械工程—机械设计及理论]