电动车五自由度耦合模型的动力学分析
1. 四川旅游学院, 供应链与采购中心, 四川成都 610100
2. 西南交通大学, 信息科学与技术学院, 四川成都 610031
3. 西南交通大学, 交通运输与物流学院, 四川成都 610031
4. 吉林大学, 通信工程学院, 吉林长春 130015
| 摘 要： | 现阶段，电动车凭借其独有的优势，如环保、方便保养、噪音低等，正在慢慢取代燃油车成为城市出门的代步工具。而乘坐的舒适性也成为了人们所考虑的问题，本文通过建立模型对该问题进行了研究，舒适度的一个评判标准为振动产生的加速度的均方根值。本文以电动车五自由度耦合模型为研究对象，对电动车在路面行驶时的振动进行了分析。建立了二分之一电动车的五自由度耦合振动的运动学模型，通过影响系数法求出运动模型的数学模型，在MATLAB/Simulink内搭建了运动学模型的仿真模型，在此基础上利用Simulink的滤波白噪音建立了路面不平度输入。为了保证仿真的正确性，本文还建立了基于Adams和Simulink的联合仿真模型。最后通过Adams软件的优化设计工具，对模型的一些参数进行了优化，以达到乘坐舒适的目的。 |
| 关 键 词： | MATLAB/Simulink; 振动; 路面不平度输入; Adams; 参数优化 |
| DOI： | 10.57237/j.mse.2023.03.002 |
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收稿日期: 2023-08-17
接受日期: 2023-08-25
在线出版日期: 2023-08-30
Dynamics Analysis of 5-DOF Coupled Model for Electric Vehicle
1. Supply Chain and Procurement Center, Sichuan Tourism University, Chengdu 610100, China
2. College of Information Science and Technology, Southwest Jiaotong University, Chengdu 610031, China
3. School of Transportation and Logistics, Southwest Jiaotong University, Chengdu 610031, China
4. College of Communication Engineering, Jilin University, Changchun 130015, China
| Abstract: | In status quo, electric vehicles are gradually replacing fuel-powered cars as the preferred mode of transportation in cities due to their unique advantages such as being environmentally friendly, easy to maintain, and low in noise. Comfort during the ride has also become a concern for people. This article investigates this issue by establishing a model. One criterion for evaluating comfort is the root mean square value of the acceleration generated by vibrations. This study focuses on a five-degree-of-freedom coupled model of electric vehicles and analyzes the vibrations during their movement on the road. A kinematic model of the five-degree-of-freedom coupled vibration of half of an electric vehicle is established, and the mathematical model of the motion model is obtained using the coefficient method. A simulation model of the kinematic model is constructed in MATLAB/Simulink, and road roughness input is generated using Simulink's filtered white noise. To ensure the accuracy of the simulation, a combined simulation model based on Adams and Simulink is also established in this study. Finally, the optimization design tool in Adams software is utilized to optimize some parameters of the model to achieve a comfortable ride. |
| Keywords: | MATLAB/Simulink; Vibration; Road Roughness Input; Adams; Parameter Optimization |
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