Dynamic Analysis of Roots Blower Case

摘要：

In this paper, the dynamic characteristic of Roots blower case is analyzed by use of ANSYS software. Firstly, an outside structure of the case is simplified with CAD software SolidWorks to draw the three-dimensional solid pictures, to get the dynamics model and create an interface file according with the standard of Parasolid software. Secondly, the grid of finite element is carried with the unit Solid186 of 20 nodes tetrahedron, and the natural frequency and vibration modes are calculated with sub-space iterative method to carry out the mode analysis on the case. The calculating results showed that the natural frequency of the case is higher than the fundamental frequency of rotor system, and vibration mode of the case structure is mainly bending, twisting, and bend-twist combination. Through dynamic analysis, the faults of structural design could be found in advance, which offer a solid theory basis to reduce the structural vibration and noise of Roots blower.

关键词： Roots blower case dynamics finite element mode analysis

作者: Fumao Wang Long Yang Mohan Wang Bangchun Wen Huayu Zhang

作者单位: School of Mechanical Engineering and Automation,Northeastern University,Shenyang 110006,China; Mecha Mechanical and Electronic Academy,Shandong University of Science and Technology,Qingdao 266510,China School of Mechanical Engineering and Automation,Northeastern University,Shenyang 110006,China

会议类型: 国际会议

会议名称: 第六届国际振动工程会议(The 6th International Conference on Vibration Engineering)(ICVE’ 2008)

会议地点: 大连

会议语种:英文

在线出版日期: 2008-06-04（万方平台首次上网日期，不代表论文的发表时间）