敞开式硬岩隧道掘进机数字样机开发与关键部件CAE分析

发布时间：2018-09-06 15:29

【摘要】：近些年来,计算机技术快速发展,数字样机技术也随之迅猛发展,并已渐渐成为开发新产品一种崭新的技术。利用数字样机技术可以克服传统产品开发中的一些缺点,如设计周期长、成本耗费高及对实际产品的依赖性等。在产品的开发设计阶段,可以利用数字样机技术检测其中存在的问题和不足,并快速地进行修正和改进,最终获得用户满意的产品。因此,这样不仅可以减少设计研究时间,节省研发成本,而且可以使设计的产品的质量和性能得到明显提升,同时使企业在市场竞争中具有更强的实力和资本。全断面岩石隧道掘进机(简称TBM)是将机械、电子、液压、激光等相关技术集合在一起的大型工厂化机械化的隧道工程掘进系统。全断面岩石掘进机的优点是机械化水平高、挖掘速度快、施工周期短、工作环境安全可靠、综合效益高等,因此,已经成为国内外隧道施工方法的首要选择,在地铁隧道、铁路隧道、引水工程和城市排水排污系统等重大项目实施中得到了普遍应用。本文主要以WIRTH公司生产的TB803E敞开式硬岩隧道掘进机为研究对象,进行数字样机的开发。首先,根据TB803E二维图纸,应用三维软件Pro/ENGINEER建立关键零部件的三维模型,对这些零部件进行装配,并对其装配体进行干涉检验,利用PRO/E Animation模块对整机进行运动学仿真。然后,对盘形滚刀的破岩理论和破岩轨迹进行分析,依据岩石的力学性能,探究刀具的受力情况以及掘进机整个刀盘受到的径向不平衡力和倾覆力矩,据此对盘形滚刀的布置形式进行优化分析,同时研究撑靴的受力情况。最后,使用ANSYS Workbench软件平台对刀盘结构进行结构静力学分析和模态分析,为刀盘的结构优化提供合理的理论依据。数字样机技术能够直观的展示TB803E掘进机的功能原理仿真,该技术不但适用于该掘进机的开发,而且可以应用到其他类型掘进机的开发研究中,甚至可以扩展推行至其他复杂机械系统的研发中,具有极重要的实用价值。
[Abstract]:In recent years, with the rapid development of computer technology and the rapid development of digital prototyping technology, it has gradually become a new technology to develop new products. Some shortcomings in traditional product development can be overcome by using digital prototyping technology, such as long design cycle, high cost and dependence on actual products. In the stage of product development and design, digital prototyping technology can be used to detect the existing problems and shortcomings, and to quickly correct and improve, and finally to obtain a satisfactory product. Therefore, it can not only reduce the time of design and research, save the cost of research and development, but also improve the quality and performance of the designed products, and make the enterprise have stronger strength and capital in the market competition. Full-section rock tunneling machine (TBM) is a large-scale mechanized tunneling system which combines mechanical, electronic, hydraulic and laser technologies together. The advantages of full section rock tunneling machine are high mechanization level, high excavation speed, short construction period, safe and reliable working environment, high comprehensive benefit, etc. Therefore, it has become the first choice of tunnel construction methods at home and abroad. Railway tunnels, water diversion projects and urban sewerage systems have been widely used in the implementation of major projects. This paper focuses on the development of digital prototype of TB803E open hard rock tunnel tunneling machine produced by WIRTH Company. Firstly, according to the two-dimensional drawings of TB803E, the 3D model of the key parts is built by using Pro/ENGINEER software, and the components are assembled, and the components are tested by interference, and the kinematics simulation of the whole machine is carried out by using PRO/E Animation module. Then, the rock breaking theory and track of the disc hob are analyzed. According to the mechanical properties of the rock, the stress of the cutter and the radial unbalance force and overturning moment of the whole cutter head of the tunneling machine are explored. According to this, the layout of disc hob is optimized and the force of supporting boot is studied. Finally, the structural static analysis and modal analysis of the cutter head structure are carried out by using the ANSYS Workbench software platform, which provides a reasonable theoretical basis for the structural optimization of the cutter head. Digital prototype technology can show the functional principle simulation of TB803E roadheader intuitively. This technology is not only suitable for the development of the roadheader, but also can be applied to the development of other types of roadheader. Even can be extended to other complex mechanical systems research and development, has a very important practical value.
【学位授予单位】：东北大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U455.31

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