含液膜的全金属单螺杆泵柔性支承-转子系统的非线性响应分析  

Non-linear Response Analysis of Flexible Support-Rotor System of Metal Progressive Cavity Pump with Liquid Film

作　　者：李大奇[1] 毛志宏 宋玉杰[1] 魏玉芬 LI Da-qi;MAO Zhi-hong;SONG Yu-jie;WEI Yu-fen(School of Mechanical Science and Engineering,Northeast Petroleum University)

机构地区：[1]东北石油大学机械科学与工程学院

出　　处：《化工机械》2022年第6期907-912,953,共7页Chemical Engineering & Machinery

摘　　要：为研究全金属单螺杆泵转子系统的动力学响应特性,利用Lagrange方程建立柔性支承的转子系统模型,采用Runge-Kutta法进行数值计算,得到系统的响应图。结果表明:随转速增大,系统出现倍周期与混沌运动的转化;随定转子配合间隙的增加,系统最大幅值呈增大趋势;转速和定转子配合间隙同时作用,在小间隙下转速对最大幅值的影响较大,在大间隙下间隙的影响较大。For purpose of investigating the dynamic characteristics of the rotor system of metal progressing cavity pump(PCP),making use of Lagrange equation to establish a dynamic model of the rotor system with flexible support was implemented,including employing Runge-Kutta method for numerical calculation to obtain response diagram of the system.The results show that,the transition between multi period motion and chaos occurs with the increase of rotational speed%with the growth of the clearance value,the maximum vibration amplitude of the system increases%the rotation speed and clearance act on the system simultaneously and the influence of speed on the maximum amplitude becomes greater when the clearance is small,and the clearance value has a greater impact when the clearance is large.

关 键 词：金属单螺杆泵 液膜力 转子动力学 偏心 数值计算 

分 类 号：TQ051.2[化学工程]