CAJ | 학술논문

首先根据国标GB/T 7031-2005机械振动道路路面谱测量数据报告,在MatLab中编写了随机路面激励谱仿真程序;利用拉格朗日方程建立了1/2车辆几何模型,并用Simulink对其进行了仿真;以不同等级路面和不同车速下的随机路面激励谱作为输入,分析了车辆在不同等级路面、不同车速下的车身加速度均方根值和后轮的动载均方根值。这对满足汽车行驶舒适性和行驶安全性的情况下优化悬架参数具有重要意义。
수선근거국표GB/T 7031-2005궤계진동도로로면보측량수거보고,재MatLab중편사료수궤로면격려보방진정서;이용랍격랑일방정건립료1/2차량궤하모형,병용Simulink대기진행료방진;이불동등급로면화불동차속하적수궤로면격려보작위수입,분석료차량재불동등급로면、불동차속하적차신가속도균방근치화후륜적동재균방근치。저대만족기차행사서괄성화행사안전성적정황하우화현가삼수구유중요의의。
In this paper,the MatLab program of stochastic pavement excitation spectra was written according to GB/T 7031-2005.The Lagrange equation was used to establish 1/2 vehicle geometry model and Simulink was used to design the simulation program according to the above mathematical model.Random road incentive spectrum of different pavements and speeds are provided as an input in order to give an simulation analysis of Vehicle ride comfort and driving safety.It has a great significance for the optimization of suspension on the basis of meeting the requirements of vehicle ride comfort and driving safety.