3-外文翻译-基于MATLAB的汽车振动控制仿真

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外文翻译

原文标题

Study on Automobile Vibration System Based on

MATLAB

译文标题基于 MATLAB 的汽车振动控制仿真

作者所在系别机械系

作者所在专业车辆工程

第 1 页共 7 页

译文标题 Study on Automobile Vibration System Based on MATLAB

原文标题

基于 MATLAB 的汽车振动控制仿真

作者张亚军译名 Yajun Zhang 国籍中国

原文出处武汉理工大学学报

With the social progress and development, the car has become one of the basic

tools of land transport. In order to keep the passengers comfortable, the goods are not

damaged by the vibration of the transport, it is necessary to analyze the vibration

performance of the car. Therefore, since the car has been, since its vibration analysis

began. As the car's input is a random input of the road, and for the mechanical system of

random vibration, basically from the last century, the beginning of the fifties. Since the

beginning of the last century, due to the development of electronic computer

technology, making the computer widely used in various fields, at the same time, due to

the rapid Fourier transform algorithm (FF) T the emergence and development of

random vibration research makes rapid development. In the country, Guo Konghui

published in 1976 in the "car technology" on the "car vibration and cargo statistical

analysis and suspension system parameter selection" article, is the first in the domestic

automotive academic published on the application of random vibration theory of the car

Vibration of the article. This paper discusses two simplified degrees of simplified

vehicle driving vibration model.

In the random road input under the various responses, the car on the typical actual road

driving vibration and cargo statistics, and also analyzes the suspension parameters on

the impact of various responses. Subsequently, Zhang Hongxin and beard are equal to

1983 published in the Journal of Jilin University, "BJ a 212A light off-road vehicle

random vibration simulation and experimental analysis," a paper, combined with the

BJ-212A light sport utility vehicle ride on the study, the car The five-degree-of-freedom

vibration system model is simplified and the response of the vehicle under the road

surface excitation is calculated by using some structural parameters which can be

obtained in the design stage. In the early 1980s, Wang Zhongfan discussed the problem

of nine degrees of freedom automobile model and its solution, and overcomes the

shortcomings of single-degree-of-freedom or two-degree-of-freedom vehicle vibration

model, which is difficult to analyze deeply in automobile theory. In recent years, many

specialized software packages have been developed for dynamic analysis, foreign

第 2 页共 7 页

countries have a variety of types of large-scale general-purpose software, these common

software in the machinery, vehicles and other engineering areas of complex dynamic

analysis. Such as some more rigid body kinematics software. But the software on the

one hand so that it is very high price, on the other hand, the user for security reasons,

should develop their own software.

According to the vibration theory, the degree of freedom of the system is the

complete description of the system at any time and any position is required for the

number of independent coordinates, the following analysis only consider the car when

the vertical vibration of the required degree of freedom. First of all, the four wheels on

the car axle shaft head are independent of each other, it is obvious that the need for four

degrees of freedom. Secondly, for the frame, the assumption that the frame plane is

horizontal, so that the vibration of the frame in the horizontal plane requires only one

coordinate. For any point on the frame, its position (referring to the vertical height, the

following if no special statement, are so) only a coordinate to describe. From the car's

point of view, the car's roll movement and tumbling movement will make the frame is

impossible to maintain the horizontal state. Both of these movements make the position

of any point on the car frame change. Thus, when the frame is still flat, three separate

coordinates are required to describe the position of any point on the frame. From

another point of view, these two movements make the car frame into a spatial plane.

According to the non-collinear three points to determine a set of knowledge of the plane

to know that any of the four suspension nodes in any three, you can determine the space

plane. In other words, the results of the roll movement and the roll movement can be

represented by the position of the three nodes. Therefore, the use of the location of these

three nodes to determine the location of any position on the plane of the car, the car

driving process, the frame will inevitably bend vibration, due to the structure of the

frame, that is, the stiffness of the beam is much greater than the rigidity of the stringer ,

So that the bending deformation of the frame can be mainly the bending deformation of

the stringer. Therefore, you can only consider the bending of the frame beam, ignoring

the bending of the beam, that the car's horizontal line in the movement still maintain a

straight line state. Due to the bending of the stringer, the frame no longer maintains the

plane state, and because of the lateral.The line remains a straight line in motion, it

becomes a regular surface, and the position of any point on the surface is described by

four independent coordinates. It can be understood that at the beginning, it is three

independent coordinates to determine its position in the space after the fourth

independent coordinate (ie, the bending freedom of the frame) to modify its position in

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摘要：

本科生毕业设计(论文)外文翻译原文标题StudyonAutomobileVibrationSystemBasedonMATLAB译文标题基于MATLAB的汽车振动控制仿真作者所在系别机械系作者所在专业车辆工程第1页共7页译文标题StudyonAutomobileVibrationSystemBasedonMATLAB原文标题基于MATLAB的汽车振动控制仿真作者张亚军译名YajunZhang国籍中国原文出处武汉理工大学学报Withthesocialprogressanddevelopment,thecarhasbecomeoneofthebasictoolsoflandtransport.In...

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