摘要
为解决压缩机转子型线设计过程繁琐以及性能难以评判的问题,对双螺杆压缩机转子型线的反向设计进行了研究。利用NURBS曲线对转子啮合线进行分段拟合,求解出各段啮合线的控制点,并建立转子型线的优化模型,利用单纯形法调整啮合线控制点坐标实现对转子型线的自适应优化设计。将优化前后的转子型线与原始型线比较分析并进行流体仿真,结果显示,优化后的转子型线综合性能提高了11.38%,优化后的压缩机转子表面压力数值在三种工况下分别提高了5.16%、5.00%、4.93%,证明了双螺杆压缩机转子型线自适应优化设计的有效性。
To address the issues of cumbersome design processes and challenging performance evaluation in compressor rotor profile design,a reverse design approach for twin-screw compressor rotor profiles was investigated.The rotor meshing line was segmented and fitted using NURBS curves,the control points of each meshing line segment were solved,and an optimization model for the rotor profiles was established.An adaptive optimization design of the rotor profile was achieved by adjusting the coordinates of the meshing line control points using the simplex method.A comparative analysis between the optimized rotor profiles and the original profiles was conducted,along with fluid simulation.The results demonstrate that the comprehensive performance of the optimized rotor profiles is improved by 11.38%.Under three operating conditions,the surface pressure values of the optimized compressor rotors are increased by 5.16%,5.00%,and 4.93%,respectively,which verify the effectiveness of the adaptive optimization design for twin-screw compressor rotor profiles.
作者
耿宇航
何雪明
高宗
GENG Yuhang;HE Xueming;GAO Zong(School of Mechanical Engineering,Jiangnan University,Wuxi,Jiangsu,214122;Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment&Technology,Wuxi,Jiangsu,214122)
出处
《中国机械工程》
北大核心
2025年第12期2837-2845,共9页
China Mechanical Engineering
基金
国家自然科学基金(51275210,51975251)
江苏省食品先进制造装备技术重点实验室自主研究课题(FMZ2018Y2)。
