文档介绍：河北工业大学
硕士学位论文
客车平顺性仿真与试验研究
姓名:杜朋
申请学位级别:硕士
专业:车辆工程
指导教师:武一民
20081101
河北工业大学硕士学位论文
客车平顺性仿真与试验研究

摘要

随着生活水平不断提高,高速公路的不断发展和车速的提高,人们对汽车乘坐舒适性
的要求也越来越高。汽车平顺性成为现代高速、高效汽车的一个主要性能,也是同类汽车
在市场竞争中争夺优势的一项重要性能指标。汽车平顺性的好坏不仅影响乘客的舒适性、
身体健康状况及正常工作的能力,而且还影响汽车的动力性的发挥及汽车零部件的使用寿
命等。
本文运用牛顿定律法建立了汽车的五自由度动力学模型,并推导出相应的数学模型,
并应用仿真软件 MATLAB/Simulink 建立了汽车平顺性的模拟计算程序。按照顺性试验,得出了汽车在不同车速下时间域和频率域的振动仿真
结果。同时按照顺性试验,从而得到试验数据并验证了模拟计算
程序的正确性。
通过对不同参数下汽车的平顺性的仿真,得到了不同参数对平顺性的影响。从而为改
善整车平顺性提供了参考依据。本文所开发的汽车平顺性的模拟计算程序,对预测和分析
汽车平顺性具有一定的指导意义。

关键词:客车,悬架,仿真,平顺性,MATLAB/Simulink

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客车平顺性仿真与试验研究

FORT SIMULATION AND EXPERIMENT
RESEARCH ON BUS

ABSTRACT

The fort is required more and more strictly with the improvement of standards of
life. The fort has been a major performance of modern high-speed and efficient
vehicles that eed more easily in petitive market of same kind of vehicles. The ride
comfort impacts not only on passengers’ comfort, health and the ability to work, but also on
expression of power performance, working life of auto parts and so on.
In this paper,both dynamic and mathematic model of planar five-freedom are
established .And then simulant program of the fort is constructed by the software
MATLAB/Simulink. Simulant result of the fort is got in different simulant speeds in
time-domain and frequency-domain according to national standards. A test is done accorting to
national standards . Datas got from test prove the correctness of simulant program.
Impact on the ride is got through the simulation of different parameters. These results were
provided pany as design reference to improve the fort. The vibration simulation
calculation program developed in this paper has certain guiding significance to analyze and
predict fort of the vehicle.

KEY WORDS:bus,suspension,simulation,the fort,MATLAB/Simulink

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原创性声明

本人郑重声明:所呈交的学位论文,是本人在导师指导下,进行研究工作