河南科技大学 硕士学位论文 智能化振动压路机振动系统动力学模型研究 姓名：刘亚非 申请学位级别：硕士 专业：工程力学 指导教师：徐红玉 20100101 摘 要 I 论文题目：智能化振动压路机振动系统动力学模型研究 专 业：工程力学 研 究 生：刘亚非 指导教师：徐红玉 摘 要 随着我国经济的飞速发展，对基础设施建设的力度不断加大，尤其是公路建 设的蓬勃发展使得压路机这种重要的筑路机械在现实工作中扮演了越来越重要的 角色，压路机是以增加工作介质的密实度为主要用途的施工机械被广泛用于道 路工程、港口机场、水电工程、国防工程、市政及重矿工业区的建设，是交通运 输与能源开发的有力技术装备采用机械进行有效地压实，能够显著地改善基础 填方与路面结构层的强度和刚度，提高抗渗透能力和气候稳定性，在多数情况下 几乎可以消除沉陷从而可以提高工程的承载能力和使用寿命，并且大大的减少 了维修费用按照施力工作原理的不同，压路机现已经形成静作用压路机、轮胎 压路机、振动压路机和冲击式压路机四大系列，目前正朝着智能化压路机、无人 驾驶压路机 GPS 的智能型压路机方向发展。
每一次的技术革新与新型压路机的诞生都离不开对压路机理论模型的研究， 本文就是首先通过对动力学模型方程的建立分析，将智能化振动压路机简化为一 个质点、两个自由度(水平方向和竖直方向)的动力学模型，讨论质点运动轨迹与 各个参数之间的函数关系，研究各参数对运动轨迹的影响该动力学模型与以往 普通压路机动力学模型的根本区别在于同时考虑振动轮竖向振动和水平振动的合 成运动，而并非仅考虑振动轮竖向振动 第一个动力学模型是关于“ 振动轮” 的简化，考虑振动轮这一质点的质量，两 个自由度的动力学模型；第二个模型的简化是在第一个模型基础上，质点的质量 在考虑振动轮质量的同时也把土体的质量也考虑进去，通过建立模型求解振动系 统方程，得到质点运动轨迹的解析表达式最后，利用数值分析方法研究各参数 对运动轨迹的影响，并利用 Fortran 高级程序设计语言编程计算和 Origin 软件描 绘出各参数之间的函数关系曲线，在此基础上分析振动参数对振动的影响；智能 化振动压路机质点的动力学模型的研究中，各振动参数( yx kk /, yx cc /)对振动响 应(水平振幅 X，竖向振幅 Y，周期运动轨迹椭圆半轴 a, b 及半轴与 x 轴的夹角 α)的影响有： 1. 参数的改变对振动轨迹的影响明显，但不同参数在不同取值范围内影响 摘要 II 程度不同。
2. 动力学方程可知，当偏转角度在 ? 0～ ? 90变化区间时，垂直激振力和水平 激振力的幅值分别按余弦和正弦规律变化 3.改变振动轮半轴与水平方向夹角α来完成垂直振动向水平振动的改变，从 而可以灵活地调整振幅并且实现垂直和水平方向振动的相互组合 调整振动参数可以改变振动轮的运动轨迹，对振动工况的实时监测既提高压 实效果具有参考价值，为实现压路机的智能化控制提供了定量依据 关 键 词：振动压路机，动力学模型，智能化，振动系统 论文类型：应用基础研究 摘要 III Subject: STUDY ON DYNAMIC MODEL OF INTELLIGENT VIBRATING ROAD ROLLER Specialty: Engineering Mechanics Name: Liu Yafei Supervisor: Xu Hongyu ABSTRACT With the rapid development of Chinas economy, the dynamics to infrastructure construction is increased unceasingly. In particular the rapid development of highway construction making the Vibratory Roller Road Machinery has played an increasingly important role. Roller is the medium density of additional work for the primary purpose of the construction machinery. They have been widely used in road works, ports or airports, hydroelectric projects, and defense engineering, municipal and construction of industrial areas of heavy minerals, transportation and energy development is a powerful technologies and equipment. Effective manner by mechanical compaction, can significantly improve the foundation layer of fill and pavement strength and stiffness, improve the ability of anti- infiltration and climate stability, in most cases, virtually eliminate subsidence, which can increase the carrying capacity and the life of the project, and greatly reduced maintenance costs. According to the construction principle of dynamics the different roller is the role has become static rollers, pneumatic roller, vibratory rollers and shock- type roller four series, is currently moving toward intelligent rollers, roller GPS unmanned intelligent roller direction. Each innovation of technologies and the new rollers appearance is always related to the theoretical of rollers’ model researching. This thesis establishes a dynamic model with a particle and two liberty degree (level direction and erect direction), through establishing and analyzing two dynamics model equations. Discussion of particle trajectories with various parameters of the functional relationship between the study of various parameters on the impact trajectory. The basic difference depends on, not only considering the vibrating drum vertical vibration but also considering the vibration wheel erects the combining motion to vibration and level vibration, between owing dynamics model and the early average road roller dynamics model. The first dynamics model is consideration the particle mass, two liberty degree 摘要 IV dynamics model about that "Vibration roller" simplification. The second models simplification is on the first model bases, at the same time, the particle mass of the soil body is also considered, through establishing the model to find the solution to get particle trajectory of the analytic expression. At last, make using of numerical value analysis method to study an impact of every parameter over motion trajectory. Using Fortran high- level programming language software and the Origin to Depict the parameters of the function relation between curve. On the basis we will analysis an impact of vibration parameter. Intelligent roller particle dynamics model in the study, The vibration parameters on the effect of vibration response： One, the change of vibration parameters affecting the track, But different parameters in different range of the influence of different level. Two, according to the dynamic equation, when the deflection Angle in ? 0 ～ ? 90 variation, vertical vibration force and the level of amplitude vibration force respectively according to the sine cosine changes. Three, change vibratory wheel axis and horizontal angle to finish vertical vibration to horizontal vibration, and adjust the amplitude and realize flexible in 。