铣坡机铣刀机构的动力学仿真及有限元分析

发布时间：2018-03-01 06:18

本文关键词： 渠道坡面铣坡机铣刀机构仿真有限元分析尺寸优化　出处：《河北工业大学》2014年硕士论文　论文类型：学位论文

【摘要】：本文以渠道坡面铣坡机的铣刀机构为研究对象，利用UG建立了铣刀机构的三维模型，利用ADAMS软件仿真其铣刀的受力情况，采用HyperMesh建立了该铣刀机构的有限元模型，并根据ADAMS仿真结果结合铣刀实际受载情况对铣刀机构的有限元模型进行加载，，对其结构进行了静力学和动力学有限元分析。通过对铣刀机构的静载荷和动载荷分析，确定了其分析计算时的工作情况和方案，计算出铣坡机铣刀机构在受载荷时的应力场和位移场的分布情况。另外，对该铣刀机构的动力学特性进行了分析研究，计算出铣刀机构支撑总成的自由模态参数（频率和振型）。最后，采用基于有限元方法的尺寸优化技术，对铣刀机构支撑总成的结构尺寸进行了优化，获得了铣刀机构的静、动力学特性，为铣坡机的定型生产和推广提供了依据。分析结果表明，该铣刀机构的强度及刚度均满足设计要求。同时，经过尺寸优化后，铣刀机构的质量减少了570kg，减重26.3%。在降低了铣刀机构自身质量，取得了良好的经济效益的同时，也为开发出结构合理、轻量化的渠道坡面铣坡机奠定了基础。
[Abstract]:In this paper, the milling cutter mechanism of channel slope milling machine is taken as the research object, the three-dimensional model of milling cutter mechanism is established by UG, the force situation of milling cutter is simulated by ADAMS software, and the finite element model of milling cutter mechanism is established by HyperMesh. According to the simulation results of ADAMS and the actual loading of milling cutter, the finite element model of milling cutter mechanism is loaded, and the statics and dynamics finite element analysis of its structure is carried out. The static load and dynamic load of milling cutter mechanism are analyzed by means of static load and dynamic load analysis. The working conditions and schemes are determined, and the distribution of stress field and displacement field of milling cutter mechanism under load is calculated. In addition, the dynamic characteristics of the milling cutter mechanism are analyzed and studied. The free modal parameters (frequency and vibration mode) of the support assembly of the milling cutter mechanism are calculated. Finally, the structural dimension of the supporting assembly of the milling cutter mechanism is optimized by using the dimension optimization technique based on finite element method, and the static state of the milling cutter mechanism is obtained. The dynamic characteristics provide the basis for the production and popularization of the slope milling machine. The analysis results show that the strength and stiffness of the milling cutter can meet the design requirements. At the same time, after dimension optimization, the mass of the milling cutter mechanism is reduced by 570 kg and the weight is reduced by 26.3.The mass of the milling cutter mechanism itself is reduced. At the same time, it lays a foundation for the development of channel slope milling machine with reasonable structure and light weight.
【学位授予单位】：河北工业大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TV53

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