动力稳定装置道床耦合系统动态特性理论模拟与试验研究  

Theoretical Simulation and Experimental Study of Dynamic Characteristics of Dynamic Stabilization Unit-track System

作　　者：李佳奇 王立华[1] 严波[2] LI Jiaqi;WANG Lihua;YAN Bo(Faculty of Mechanical and Electrical Engineering,Kunming University of Science and Technology,Kunming 650500,China;Faculty of Art and Communication,Kunming University of Science and Technology,Kunming 650500,China)

机构地区：[1]昆明理工大学机电工程学院,昆明650500 [2]昆明理工大学艺术与传媒学院,昆明650500

出　　处：《机械科学与技术》2021年第8期1186-1192,共7页Mechanical Science and Technology for Aerospace Engineering

基　　金：国家自然科学基金项目(51765023)。

摘　　要：针对动力稳定装置与轨道复杂的耦合特性,基于键合图理论建立动力稳定装置-轨道耦合系统。为更加贴切动力稳定装置的实际工作状态,对动力稳定装置持续作业期间的自由度问题,轮轨间Hertz非线性接触特性与轮轨接触角度问题以及轮轨间间隙传动问题做出具体分析。并结合键合图理论与Euler梁理论建立动力稳定装置与轨道耦合系统完整的键合图模型。经动力稳定车现场作业试验数据计算机仿真结果在时域与频域上对比分析,验证理论模型的正确性,可以被应用于不同激振频率的动力稳定装置动态特性分析。To understand the complex coupling characteristics of a dynamic stabilization unit-track coupling dynamic model,the complex nonlinear dynamic system of a dynamic stabilization-track coupling system based on the bond graph theory was established.In order to better demonstrate the actual working state of the dynamic stability device,the problems of the degree of freedom of the dynamic stabilization unit during continuous operation,roller-rail Hertz non-linear contact,roller-rail contact angle and roller-rail gap were analyzed in detail.A complete bond graph model of the coupling system between dynamic stabilizer and track was established by applying the bond graph theory and the Euler beam theory.The theoretical model was proven to be correct by the comparing the field operation test data of the dynamic stability vehicle in its time domain and frequency domain,which can be applied to analyzing the dynamic characteristics of a dynamic stability device with different excitation frequencies.

关 键 词：动力稳定装置 键合图理论 Euler梁 自由度 

分 类 号：TH113.22[机械工程—机械设计及理论]