道路就地冷再生机动力学仿真研究

发布时间：2018-01-17 00:12

本文关键词：道路就地冷再生机动力学仿真研究　出处：《长安大学》2014年硕士论文　论文类型：学位论文

【摘要】：路面就地冷再生机作为路面冷再生过程中主要施工机械，能够在对道路通行影响最小情况完成旧路面的再生和维护工作。在我国公路即将进入全面维护的大背景下，冷再生机的性能研究，特别是铣拌鼓的针对性研究显的尤为重要。本文通过利用冷再生机工作过程特点与路面破坏模型，得到铣削厚度变化的规律和铣拌刀具的受力数学表达式。分析出了冷再生机功率分配表达式，并对影响切削功率的因素进行了总结归纳。对比稳定土拌合机刀具布置形式，得出适合冷再生机工作特点刀具的布置形式，建立其三维实体模型。虚拟仿真中使用Proe软件三维造型功能与ADAMS的运动学与动力学功能，完成虚拟样机建立和动力学仿真。通过仿真得到与数学分析相符的刀具运动速度，位移和轨迹曲线。利用单把刀具载荷添加进而得到铣拌鼓在水平方向阻力与竖直方向阻力变化曲线。在结合单把刀具受力曲线和铣拌刀具布置特点的基础上，得到了多把刀具同时工作铣拌鼓水平受力和转矩变化曲线。优化设计了刀具排列参数，对单因子进行了最优化，，并结合ADAMS优化试验设计，整合优化了多因子匹配研究。
[Abstract]:As the main construction machinery in the process of road surface cold regeneration, the road surface local cold recycling machine. It can complete the regeneration and maintenance of the old pavement in the condition of minimal impact on the road passage. Under the background that the highway in our country is about to enter the comprehensive maintenance, the performance of the cold regenerator is studied. Especially the pertinence research of milling drum is very important. This paper makes use of the characteristics of cold regenerator working process and road damage model. The law of the thickness change of milling and the mathematical expression of the force of milling and mixing tool are obtained, and the power distribution expression of cold regenerator is analyzed. The factors influencing the cutting power are summarized and compared with the tool layout of the stabilized soil mixer, and the tool layout suitable for the working characteristics of the cold regenerator is obtained. In the virtual simulation, the three-dimensional modeling function of Proe software and the kinematics and dynamics function of ADAMS are used in virtual simulation. The virtual prototype is built and the dynamic simulation is carried out. The tool motion speed which is consistent with the mathematical analysis is obtained by simulation. Displacement and trajectory curves. The variation curves of horizontal and vertical resistance of milling drum are obtained by adding single tool load. Based on the combination of single tool force curve and the characteristics of milling and mixing tool arrangement. The curves of horizontal force and torque change of milling drum are obtained. The parameters of tool arrangement are optimized, and the single factor is optimized, and the optimal design is combined with ADAMS test. Integration optimizes the research of multi-factor matching.
【学位授予单位】：长安大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U415.528

【参考文献】