压气机叶轮的逆向重建及其模态分析
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摘要
压气机叶轮是离心式机械增压器的主要零部件之一,叶轮对增压器系统的性能有很大的影响,增压器系统运行的高效性、稳定性主要依赖于压气机叶轮的可靠性。利用逆向造型技术对某型离心式机械增压器压气机的叶轮进行逆向建模,得到了叶轮的三维模型。以此模型为对象,通过ANSYS完成了该模型的模态分析与计算,得到叶轮在自由、固定、原装三种支撑下的固有频率。通过实验分析了压气机叶轮模态,仿真与实验得到的结果进行对比,评价了重建叶轮三维模型的有效性,为节约叶轮开发成本,缩短叶轮开发周期,提高叶轮设计效率提供了理论依据。
Compressor impeller is a core component of centrifugal supercharger. It has a great impact on the turbocharger system while the vibration characteristics,operation efficiency,stability of supercharger depend on the compressor impeller reliability. The reverse modeling of the centrifugal supercharger compressor impeller was carried out by using the reverse molding technique. The 3D model of the compressor impeller was obtained. Based on this model,the modal analysis and calculation of the model is completed by ANSYS,and the natural frequency of the impeller in free,fixed and original states is obtained. The modal experimental analysis is conducted to compressor impeller. The comparison between simulation and experiment results show that the finite element model of the impeller is validated. It provides theoretical basis for shortening the impeller development cycle,saving the development cost and improving the design efficiency of the impeller.
Compressor impeller is a core component of centrifugal supercharger. It has a great impact on the turbocharger system while the vibration characteristics,operation efficiency,stability of supercharger depend on the compressor impeller reliability. The reverse modeling of the centrifugal supercharger compressor impeller was carried out by using the reverse molding technique. The 3D model of the compressor impeller was obtained. Based on this model,the modal analysis and calculation of the model is completed by ANSYS,and the natural frequency of the impeller in free,fixed and original states is obtained. The modal experimental analysis is conducted to compressor impeller. The comparison between simulation and experiment results show that the finite element model of the impeller is validated. It provides theoretical basis for shortening the impeller development cycle,saving the development cost and improving the design efficiency of the impeller.
引文
[1]黄新忠,赵俊生.基于ANSYS的压气机叶轮振动特性有限元仿真分析[J].机械设计与制造,2012(2):12-14.(Huang Xin-zhong,Zhao Jun-sheng.Vibration characteristic simulation and analysis of compressor impeller based on finite element[J].Machinery Design&Manufacture,2012(2):12-14.)
[2]叶帅奇,方沂,王旭龙,刘丽华.新型机械增压器转子系统模态分析[J].机械工程师,2013(8):142-144.(Ye Shuai-qi,Fang Yi,Wang Xu-long.Modal analysis of new type supercharger rotors system[J].Mechanical Engineer,2013(8):142-144.)
[3]王宪成,郭猛超,程江华.增压器压气机水冷蜗壳设计及其内部流场分析[J].内燃机工程,2014(4):109-113.(Wang Xian-cheng,Guo Meng-chao,Cheng Jiang-hua.Water cooled compressor volute design and internal flow field analysis[J].Chinese Internal Combustion Engine Engineering,2014(4):109-113.)
[4]刘厚根.汽车机械增压器的设计与实验研究[D].长沙:中南大学,2009:9-13.(Liu Hou-gen.Design and experimental study of automobile mechanical turbocharger[D].Changsha:Hunan University,2009:9-13.)
[5]王航,郭然,康顺.增压器压气机级多目标气动优化设计[J].内燃机工程,2010,31(5):41-46.(Wang Han,Guo Ran,Kang Shun.Multi-Objective aerodynamic optimization designfor compressorstageof turbocharger[J].Chinese Internal Combustion Engine Engineering,2010,31(5):41-46.)
[6]丁平,黄燕晓.基于ANSYS的飞机发动机压气机叶片模态分析[J].中国民航飞行学院学报,2010,21(4):23-26.(Ding Ping,Huang Yan-xiao.Modal analysis of compressor blade of aircraft engine based on ANSYS[J].Journal of CiviI AviationFlight Universityof China,2010,21(4):23-26.)
[7]周小东,成思源,杨雪荣.面向创新设计的逆向工程技术研究[J].机床与液压,2015,43(19):25-28.(Zhou Xiao-dong,Cheng Si-yuan,Yang Xue-rong.Study of reverseengineering technology oriented to innovative design[J].Machine Tool&Hydraulics,2015,43(19):25-28.)
[8]宫文峰,黄美发.逆向工程技术的应用与研究[J].机械设计与制造,2013(1):110-112.(Gong Wen-feng,Huang Mei-fa.Applicationand research of reverseengineering technology[J].Machinery Design&Manufacture,2013(1):110-112.)
[9]刘丹,钱应平,易国锋.逆向工程中点云处理及拟合新方法的研究[J].机械设计与制造,2015(3):55-57.(Liu Dan,Qian Ying-ping,Yi Guo-feng.The research of point cloud processing and fitting methodsin reverse engineering[J].Machinery Design&Manufacture,2015(3):55-57.)
[10]闫波,王宏涛,曾巧芸.带分流叶片叶轮的模型重建及气动特性分析[J].应用科技,2012,39(2):49-52.(Yan Bo,Wang Hong-tao,Zeng Qiao-yun.Reconstruction of an impeller with splitting vanesand its aerodynamic analysis[J].Applied Science and Technology,2012,39(2):49-52)
[2]叶帅奇,方沂,王旭龙,刘丽华.新型机械增压器转子系统模态分析[J].机械工程师,2013(8):142-144.(Ye Shuai-qi,Fang Yi,Wang Xu-long.Modal analysis of new type supercharger rotors system[J].Mechanical Engineer,2013(8):142-144.)
[3]王宪成,郭猛超,程江华.增压器压气机水冷蜗壳设计及其内部流场分析[J].内燃机工程,2014(4):109-113.(Wang Xian-cheng,Guo Meng-chao,Cheng Jiang-hua.Water cooled compressor volute design and internal flow field analysis[J].Chinese Internal Combustion Engine Engineering,2014(4):109-113.)
[4]刘厚根.汽车机械增压器的设计与实验研究[D].长沙:中南大学,2009:9-13.(Liu Hou-gen.Design and experimental study of automobile mechanical turbocharger[D].Changsha:Hunan University,2009:9-13.)
[5]王航,郭然,康顺.增压器压气机级多目标气动优化设计[J].内燃机工程,2010,31(5):41-46.(Wang Han,Guo Ran,Kang Shun.Multi-Objective aerodynamic optimization designfor compressorstageof turbocharger[J].Chinese Internal Combustion Engine Engineering,2010,31(5):41-46.)
[6]丁平,黄燕晓.基于ANSYS的飞机发动机压气机叶片模态分析[J].中国民航飞行学院学报,2010,21(4):23-26.(Ding Ping,Huang Yan-xiao.Modal analysis of compressor blade of aircraft engine based on ANSYS[J].Journal of CiviI AviationFlight Universityof China,2010,21(4):23-26.)
[7]周小东,成思源,杨雪荣.面向创新设计的逆向工程技术研究[J].机床与液压,2015,43(19):25-28.(Zhou Xiao-dong,Cheng Si-yuan,Yang Xue-rong.Study of reverseengineering technology oriented to innovative design[J].Machine Tool&Hydraulics,2015,43(19):25-28.)
[8]宫文峰,黄美发.逆向工程技术的应用与研究[J].机械设计与制造,2013(1):110-112.(Gong Wen-feng,Huang Mei-fa.Applicationand research of reverseengineering technology[J].Machinery Design&Manufacture,2013(1):110-112.)
[9]刘丹,钱应平,易国锋.逆向工程中点云处理及拟合新方法的研究[J].机械设计与制造,2015(3):55-57.(Liu Dan,Qian Ying-ping,Yi Guo-feng.The research of point cloud processing and fitting methodsin reverse engineering[J].Machinery Design&Manufacture,2015(3):55-57.)
[10]闫波,王宏涛,曾巧芸.带分流叶片叶轮的模型重建及气动特性分析[J].应用科技,2012,39(2):49-52.(Yan Bo,Wang Hong-tao,Zeng Qiao-yun.Reconstruction of an impeller with splitting vanesand its aerodynamic analysis[J].Applied Science and Technology,2012,39(2):49-52)