基于传递矩阵法的涡轮增压器临界转速分析  

The Critical Speed Analysis of Engine Turbocharger Based on Matrix Transfer Method

作　　者：李宏玲[1] 方达宪[1] 曹国安[1] 

机构地区：[1]安徽新华学院土木与环境工程学院,合肥230088

出　　处：《合肥学院学报（自然科学版）》2013年第3期71-74,83,共5页Journal of Hefei University :Natural Sciences

基　　金：国家自然科学基金项目"乘用车四轮定位参数算法与主销后倾角主动控制探索"(51050002)资助

摘　　要：发动机涡轮增压器是一种轻型高速旋转机械,其作用是通过增压增加气缸进气量,提高发动机的燃油经济性和动力性.发动机涡轮增压器核心部件是双盘双支撑的转子轴承系统,所以对转子轴承系统运动稳定性的研究显得尤为重要.通过传递矩阵法建立求解涡轮增压器转子系统临界转速的计算模型,将某型国产汽油机涡轮增压器转子系统的参数带入数学计算模型.利用Matlab软件编程计算涡轮增压器转子系统的临界转速,并通过台架试验验证了理论计算的正确性,为涡轮增压器转子系统设计提供理论参考.The engine turbocharger is a slight and high-speed rotating machine, the function increase the intake airflow rate by compress the fresh air, so it can improve fuel economy and increase power performance. The core component of turbocharger is a rotor system with double disc and double support, so it is important to research the stability of rotor bearing system motion. The calculate model has been established to find the critical speed of turbocharger based on transfer matrix method. Then the critical speed of turbocharger rotor system are calculated by Matlab software, through the bench test, the results of theory analysis are also verified, which lay the foundation for subsequent design of rotor system.

关 键 词：涡轮增压器 临界转速 传递矩阵法 MATLAB 

分 类 号：U464[机械工程—车辆工程]