Modal analysis of the torque converter in different prestress  

作　　者：Zhang Zeyu Hui Jizhuang Shi Ze Suo Xuefeng Zhang Xuhui Fan Hongwei 张泽宇;Hui Jizhuang;Shi Ze;Suo Xuefeng;Zhang Xuhui;Fan Hongwei(Key Laboratory of Road Construction Technology and Equipment,Ministry of Education,Chang’an University,Xi’an 710064,P.R.China;Shaanxi Key Laboratory of Mine Electromechanical Equipment Intelligent Monitoring,Xi’an University of Science and Technology,Xi’an 710054,P.R.China;Research Center,Tibet Tianlu Co.Ltd,Lhasa 850000,P.R.China)

机构地区：[1]Key Laboratory of Road Construction Technology and Equipment,Ministry of Education,Chang'an University,Xi'an 710064,P.R.China [2]Shaanxi Key Laboratory of Mine Electromechanical Equipment Intelligent Monitoring,Xi'an University of Science and Technology,Xi'an 710054,P.R.China [3]Research Center,Tibet Tianlu Co.Ltd,Lhasa 850000,P.R.China

出　　处：《High Technology Letters》2020年第1期61-67,共7页高技术通讯（英文版）

基　　金：Supported by the China Postdoctoral Science Foundation(No.2019M663913XB);Shaanxi Key Laboratory of Mine Electromechanical Equipment Intelligent Monitoring(Xi’an University of Science and Technology)(No.SKL-MEEIM201907);Natural Science Basic Research Plan in Shaanxi Province of China(No.2019JZ-10);Science and Technology Program of Tibet Autonomous Region(No.XZ2019TL-G-02);Fundamental Research Funds for the Central Universities(No.300102250106)。

摘　　要：In order to study the mechanical properties and the dynamic performance of torque converter,to reduce the vibration and noise during the operation and to improve the stability,a 215 mm hydraulic torque converter is taken as the research object,and modal analyses are performed based on the finite element method.The weak parts of the impeller structure are obtained after calculating the models of the impeller and turbine without prestress.The variation of the modal frequency of the turbine and impeller are obtained under different prestress conditions by calculating different rotational speeds of the transmission shaft.The fundamental frequencies of the impeller and the turbine increase by 0.43%and 4.82%respectively when the rotational speed ranges from 100 rpm to 4500 rpm.The results of the present research indicate that the modal frequencies at different speeds are similar to the fundamental frequencies of the structure.Therefore,it is possible to estimate the vibration characteristics of the structure and optimize the structural design by numerical modal analysis in the static state instead of the dynamic state.

关 键 词：HYDRAULIC TORQUE converter MODAL ANALYSIS PRESTRESS FINITE element ANALYSIS 

分 类 号：U463.2[机械工程—车辆工程]