【作者】 顾巧祥；

【导师】 贾高顺；

【作者基本信息】 浙江工业大学 ， 化工过程机械， 2003， 硕士

【摘要】 本文借助于ANSYS大型商用软件对碟式分离机的转鼓零件进行了二维和三维有限元应力分析。在进行二维分析过程中，针对碟式分离机的实际工作情况，采用ANSYS软件中的接触单元模块对转鼓零件作整体分析，避免了因单独计算每个零件的应力而带来的误差；在分析过程中还合理的考虑了转鼓装配过程中所施加的预紧力，得到较合理的计算结果；在对转鼓筒体开孔处进行三维应力分析时采用子模型模块计算，既提高了计算精度又节省了大量的计算时间和硬盘空间。另外，本文运用了ANSYS含有的内部开发工具APDL语言进行二次开发，解决了转鼓零件二维和三维应力分析中二次型载荷如操作水压和物料离心压力等的加载问题。 碟式分离机的可靠性越来越受人重视，由于转鼓零件的应力对转鼓转速的变化比较敏感，因此本文利用蒙特卡罗有限元法研究了转鼓转速的随机性对转鼓筒体螺纹处和开孔处应力的影响，并得到相应的可靠度。更多还原

【Abstract】 The paper uses the ANSYS Software to analyze the 2-D stress and 3-D stress of the Disc Separator’s drum. In the process of the 2-D stress analysis, according to the actual situation, it uses the contact-element model to analyze the 2-D stress of the parts of the separator s drum as a whole. It can avoid the error which caused by analyze the 2-D stress of the part singly. In the paper, it takes the pretension into account, and the results are reasonable. It uses the Sub-model to analyze the 3-D stress of holes of the drum. It can improve the precision and shorten the run-time and save the space of hard disk. On the other hand, it uses the APDL which ANSYS contains to apply the load of water which manipulates the separator and the load which causes by the material in the process of the 2-D stress and 3-D stress of the separator’s drum analysis.Now people take more important in the reliability of the separator, the rotating speed of the drum is keen to the stress of the drum. In the paper, it uses Monte Carlo-FEM to analyze the effect of the screw thread and the hole of the drum, and receive the reliability.更多还原