【作者】 李霞；

【导师】 王维新；

【作者基本信息】 石河子大学 ， 农业机械化工程， 2005， 硕士

【摘要】 犁架的作用是连接各零部件并传递牵引力,在犁的工作中起着重要的作用。传统的农业机械设计大多采用经验法、类比法和田间试验法,而避开较复杂的定量分析计算,往往导致机器的设计不合理,不但产品的研发周期长,还造成人力财力物力的浪费。本文运用虚拟技术对犁架进行分析研究,研究开发周期短、产品设计科学合理,研发成本低的显著特点,具有使用价值和理论意义。 本文经过大量的调研研究,在各种翻转犁中做了大量的性能、可靠性对比分析,最后确定了对格力格尔—贝松翻转五铧犁犁架进行分析研究。先从犁架的受力和结构参数分析出发,结合现代计算机技术。利用CAD软件Pro/Engineer建模的特点,建立了犁架的实体模型。在此模型的基础上用Pro/Engineer和ANSYS8.1的接口导入ANSYS8.1。运用大型有限元分析软件ANSYS对犁架进行了静力分析,研究了应力应变的变化规律,并在不同的工况下进行比较分析,确定了犁架的动力学模型,从而为犁架等强度设计提供了依据。从虚拟设计中找出犁架的变形,来对其进行结构的优化。进一步验证了虚拟技术的研究的意义。更多还原

【Abstract】 The function of plow frame is connects various spare parts and the transmission force of traction, and plow frame is playing the vital role in the plow work. The traditional design uses experiment method, analogy method and field testing method, and avoids the complex quantitative analysis computation.It often causes the machine the design unreasonable. Not only the product research and development cycle is long, but also creates the manpower financial resource physical resource the waste. This article utilizes the hypothesized technology to conduct the analysis research to the plow frame.Thus achieved reduces the research development cycle, improves the product quality, reduces the production cost the goal.We passes through the massive investigation and study research, and made the massive performance、 reliability to contrast in each kind of turn over plow, finally determined the accusative strength Gregoire-Besson turn over 5 bladed plough plow frame conducts the analysis research. This article embarks first from the plow stress analysis research. Then in this foundation unifies Pro/Engineer the plow frame entity modle has been established,and the model lead to ANSYS. I used the large-scale finite element analysis ANSYS plow frame strength analysis, made clear the stress strain change rule, And carries on the comparative analysis under the different operating mode, Confirmed the finite element computation analysis accuracy and the reliability。 Uses Pro/ Engineer in this model foundation and the ANSYS connection inducts ANSYS8.1, Using its formidable analysis function, Has analyzed a plow stress and the distortion situation.更多还原