基于UG、Workbench平台航空发动机多盘转子结构自动优化方法
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摘要
目前对航空发动机转子优化设计多限于单盘优化,且优化需要借助人工调整再优化。基于航空发动机转子优化设计常用软件平台数据交流方便和减少人工调整的考虑,提出了基于UG、Workbench平台航空发动机多盘转子结构自动优化方法。首先基于UG平台,对多盘转子结构进行参数化几何造型,借助生成的标准化模板,便于减少建模工作量及对同类盘的优化。然后基于Workbench平台,借助脚本语言(APDL、Python)二次开发完成对多盘转子结构状态变量提取,及自动优化流程控制。算例结果表明,在满足几何、强度要求条件下,优化后多盘转子结构质量减少了33%,应力分布更为均匀,且验证该方法具有良好的稳定性及精度。
At present,the optimization design of an aero-engine rotor is limited to single disk optimization,and the optimization needs to be performed by manual adjustment.In view of the convenience of aero-engine rotor data exchange between the optimization and model building software platforms and the reduction of manual adjustment,an automatic optimization method of multi-disk rotor structure of aero-engine based on UG and Workbench platform was proposed.Firstly,based on the UG platform,parametric geometrical modeling of multi-disk rotor structure can be made,and a standardized template was generated,in order to optimize the similar disk optimization problem.Then based on the Workbench platform,with APDL and Python redevelopment code,extraction of multi-disk rotor structure's state variables and automatic optimization of process control were completed.The results of a numerical example showed that under the condition of satisfying geometrical and strength requirements,the mass of rotor was reduced by 33%,and the stress distribution was more uniform.And the method was proved to be of good stability and precision.
At present,the optimization design of an aero-engine rotor is limited to single disk optimization,and the optimization needs to be performed by manual adjustment.In view of the convenience of aero-engine rotor data exchange between the optimization and model building software platforms and the reduction of manual adjustment,an automatic optimization method of multi-disk rotor structure of aero-engine based on UG and Workbench platform was proposed.Firstly,based on the UG platform,parametric geometrical modeling of multi-disk rotor structure can be made,and a standardized template was generated,in order to optimize the similar disk optimization problem.Then based on the Workbench platform,with APDL and Python redevelopment code,extraction of multi-disk rotor structure's state variables and automatic optimization of process control were completed.The results of a numerical example showed that under the condition of satisfying geometrical and strength requirements,the mass of rotor was reduced by 33%,and the stress distribution was more uniform.And the method was proved to be of good stability and precision.
引文
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[18]董付国.Python程序设计[M].北京:清华大学出版社,2015.
[2]刘长福,邓明.航空发动机结构分析[M].西安:西北工业大学出版社,2006.
[3]雷先华,江和甫,王旅生.整体压气机转子结构优化设计[J].航空动力学报,1997,12(1):40-42,106.LEI Xianhua,JIANG Hefu,WANG Lüsheng.Structure optimized design of overall compressor rotor[J].Journal of Aerospace Power,1997,12(1):40-42,106.(in Chinese)
[4]SHEN X L,DONG S J,QI X D.The fluid-thermal-structure coupled analysis and optimization of turbine mortise/disc[R].ASME Paper 2012-GT-9551,2012.
[5]QI X D,SHEN X L.Multidisciplinary design optimization of turbine disks based on ansys workbench platforms[C]∥Asia-Pacific International Symposium on Aerospace Technology.Shanghai:Procedia Engineering,2014:1275-1283.
[6]TONG M T.A computer code for gas turbine engine weight and disk life estimation[R].ASME Paper 2002-GT-30500,2002.
[7]陆山,鲁冯杰.基于ANSYS的整体叶盘结构优化设计[J].航空动力学报,2012,27(6):1218-1224.LU Shan,LU Fengjie.Structure optimization design for blisk based on ANSYS[J].Journal of Aerospace Power,2012,27(6):1218-1224.(in Chinese)
[8]范志强,马枚,王荣桥.航空发动机整体叶盘优化设计[J].燃气涡轮试验与研究,2000,13(4):27-30.FAN Zhiqiang,MA Mei,WANG Rongqiao.Optimum design for blisk of aero-engine[J].Gas Turbine Experiment and Research,2000,13(4):27-30.(in Chinese)
[9]雷先华,江和甫,王旅生.整体压气机转子优化设计系统[J].燃气涡轮试验与研究,1995(3):17-20.LEI Xianhua,JIANG Hefu,WANG Lüsheng.Optimization design system for whole compressor rotor[J].Gas Turbine Experiment and Research,1995(3):17-20.(in Chinese)
[10]黄致建,郝艳华,郑光华.多级组合盘的整体结构最优化设计[J].航空动力学报,1994,9(3):245-248,331.HUANG Zhijian,HAO Yanhua,ZHENG Guanghua.Whole structure optimization design for multi-level combination disk[J].Journal of Aerospace Power,1994,9(3):245-248,331.(in Chinese)
[11]黄致建.多级组合盘的整体结构最优化设计[J].航空发动机,1992(5):58-65.HUANG Zhijian.Whole structure optimization design for multi-level combination disk[J].Aeroengine,1992(5):58-65.(in Chinese)
[12]陆山,李伦未.航空发动机高负荷涡轮盘双幅板结构优化设计[J].推进技术,2011,32(5):631-636.LU Shan,LI Lunwei.Twin-web structure optimization design for heavy duty turbine disk based for aero-engine[J].Journal of Propulsion Technology,2011,32(5):631-636.(in Chinese)
[13]李伦未,陆山.基于ANSYS的多辐板风扇盘结构优化设计技术[J].航空动力学报,2011,26(10):2245-2250.LI Lunwei,LU Shan.Structure optimum design techniques for multi-web fan disk based on ANSYS[J].Journal of Aerospace Power,2011,26(10):2245-2250.(in Chinese)
[14]章胜,赵明,陆山,等.基于等强度理论的轮盘优化设计方法研究[J].机械科学与技术,2013,32(9):1322-1326.ZHANG Sheng,ZHAO Ming,LU Shan,et al.Research on an optimal method of disks based on the equivalent strength theory[J].Mechanical Science and Technology for Aerospace Engineering,2013,32(9):1322-1326.(in Chinese)
[15]张可村,李换琴.工程优化方法及其应用[M].西安:西安交通大学出版社,2007.
[16]《航空发动机设计手册》总编委会.航空发动机设计手册:第18册叶片轮盘及主轴强度分析[M].北京:航空工业出版社,2001.
[17]尚晓江,邱峰,赵海峰.ANSYS结构有限元高级分析方法与范例应用[M].3版.北京:中国水利水电出版社,2014.
[18]董付国.Python程序设计[M].北京:清华大学出版社,2015.