基于虚拟样机的掘进机模拟操纵系统研究
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摘要
掘进机广泛应用于采矿工程和地下工程中。目前,掘进机的操作主要是人在作业现场通过操作台来实现的,现场的环境比较恶劣。随着科学技术的发展和人民生活水平的提高,掘进机的智能化、无人化发展趋势越来越受到人们的重视。本文以某型悬臂式掘进机为对象,对掘进机截割机构模拟操纵控制进行了研究。
     论文分析断面形状与截割臂姿态之间的关系,根据煤矿巷道断面的成形过程,提出截割头在断面成形过程中的截割路径规划方案。并将路径离散化成一个点序列,从而将断面的截割路径分成若干小段,每一小段看作直线段。论文针对掘进机截割臂的运动特点,推导出其运动的空间几何模型,并进行抽象简化。构建了掘进机构虚拟样机模型,并进行了运动学仿真分析。
     论文进行了控制数据与样机模型之间的接口程序开发。数据文件是独立于ADAMS模型存在的,要实现外部数据文件的驱动仿真,需要编写用户接口函数,实现读取外部数据文件生成样条曲线的功能。ADAMS提供了开放的用户接口,通过自定义子函数,经过编译连接后得到ADAMS动态连接库函数,仿真过程中调用库函数实现外部控制数据驱动虚拟样机模拟操纵的功能。
     论文最后部分,通过掘进机截割机构虚拟样机仿真试验验证研究方案的正确性。
Roadheader is widely used in mining and underground engineering. At present, the Roadheader operation is mainly manual operation. The environment is relatively poor at the scene. With scientific and technological development and the improvement of people's living standards, more and more people have pay attention to the intelligent and automatic development of roadheader. Based on an automatic boom-type roadheader, this paper discusses the simulation control of rocker arm in the laneway profiling.
     This paper analyzed the calculation formula between sectional shape and rocker arm gesture. According to the profiling process of the coalmine laneway section, proposed the path planning of the section forming process. The path was turned into a discrete sequence of points. Thus the path was divided into many segments, and each segment can be seen as a short line. Based on the kinematics characteristics of the rocker arm, derived a space geometric model of its motion and then simplified the model. Constructed virtual prototyping model of tunneling institutions, and done the kinematics simulation analysis. Introduces three-axis operation control devices based on electro-hydraulic proportional control, through the manipulation of controller generates control data files and drive the virtual prototype simulation.
     This thesis mainly developed interface program between control data and prototype model. Data files is independent of ADAMS models, if we want to realize the simulation of external data files driver simulation, we have to code user interface function, in order to realize the function of read the external data file and generate spline curve. ADAMS provides open user interface, through the custom son function, and then we get languae ADAMS dynamic-link libraries function after connect, the simulation process call library function, and then we can realize the function of external control data driven virtual prototype simulation manipulations.
     This thesis’last part has verified the correctness of the research schemes, in the way of virtual prototype of determing cutting simulation test cut institutions.
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