毕业论文 ---与汽车相关的几个力学问题的研究

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1、 本 科 毕 业 论 文 ( 2010 届 ) 题 目 与汽车相关的几个力学问题的研究 学 院 理学院 专 业 应用物理 班 级 061 班 学 号 106102024 学生姓名 指导教师 完成日期 2010 年 6 月 3 日 1 与汽车相关的几个力学问题的研究 摘 要 本文研究了与汽车运动有密切联系的几个力学问题，包括刹车时的最大加速度问题，行驶速度与刹车距离关系的问题，悬挂系统所起的减震作用，刚体转动对轴的附加压力问题，这几个问题与汽车行驶中的舒适性，安全性密切相关。在汽车制造和发展的过程中，舒适性和安全性 一直是所努力追求的目标。作为直接承载这两个要求的具体实现形式，在新技术的支撑下不

2、断发展，呈现出多种学科交叉，多种技术综合，多种理论覆盖的趋势，但在其中，作为基础的力学原理的作用是不可代替的，力学模型的分析是必不可少的。本文正是从这种追根溯源的要求出发，理论联系实际，用所学的知识，对这几个问题建立理想模型，仔细分析，研究这几个问题所包涵的最根本的力学原理。 关键词 ：平衡 阻尼 附加压力 滑动摩擦 悬挂系统 2 The Research of Several Car-related Mechanical Problems Abstract This article made research of several mechanical problems which rela

3、ted to the car movement, include the problem of the maximum acceleration when brake the car, the relationship between the speed and braking distance, the damping function of suspension system, the additional pressure made by the movement that rigid body circles round the axis. These problems are clo

4、sely related to the comfortableness, security in car driving. In the car manufacturing and development process, the comfortableness and security has always been the goal. As direct and specific forms for these goals, it has continually developed with the support of new technology and presents a tren

5、d that multiple subjects across, multiple technologies integrate, multiple theories overlap. But in which, mechanical principle as a basis is cant be replaced； analysis to mechanical model is indispensable. This article is from the requirements of tracing the source, by linking theory with practice, using learned knowledge, to establish ideal model to these problems. On this basis, making careful analysis and investigating the most fundamental mechanical principle that included in these problems. Keywords: balance damping additional pressure sliding friction suspension system