文献类型：期刊文献

英文题名：Simulation of the Influence of Centrifugal Force and Fluid-structure Interaction on the Critical Speed of Agitator and the Applicability of the Theoretical Formula

作者：Shen, Changlin[1]; Wang, Hehui[1]

机构：[1] School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai, China

年份：2019

卷号：490

期号：5

外文期刊名：IOP Conference Series: Materials Science and Engineering

收录：EI(收录号：20191906901789)

语种：英文

外文关键词：Modal analysis - Speed - Mixing

摘要：On the ANSYS Workbench, the two-way fluid-structure interaction (FSI) process of the mixing system is simulated by combining the structure modules and flow field modules. According to the natural frequency of the shaft in the dry and wet mode which is obtained by modal analysis method, the critical speed of the shaft is solved. The effect of centrifugal force and FSI on the critical speed of the shaft is studied. The results show that under normal working conditions, the influence of centrifugal force and fluid pressure based on two-way FSI on the critical speed of the shaft is insignificant, while the added fluid mass leads to a significant decrease in the critical speed of the mixing shaft. These laws provide reliable evidence for the applicability of the theoretical formula and the optimal design of the shaft. ? Published under licence by IOP Publishing Ltd.