Numerical Simulation and Vibration Test Analysis of Large-Scale Decanter Centrifuge Base on Fluid-Structure Interaction

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Abstract

A finite element model of decanter centrifuge was established by ANSYS software. The centrifugal hydraulic pressure versus rotational speed and the stress state of the rotor system are obtained through the fluid solid coupling simulation. The maximum pressure of the internal flow field of decanter centrifugal is located in the inner wall of the bowl surface at the exit section of the distributor. And the maximum displacement of the rotor system occurs in the middle of the spiral and the maximum stress is located at the connection point of the spiral blade root and the spiral tube body. Afterwards, the numerical simulation results were certified with the vibration test. A new method for testing the critical speed of the double rotor of the decanter centrifuge is proposed.

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	Articles by authors
	Zhong Weiliang
	Tan Wei
	Li Zhenwei
	Li Huaimin
	Liu Liyan

Keywords： decanter centrifuge； CFD simulation； fluid-structure interaction； rotor dynamics； vibration test

Received 2016-04-08;

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Cite this article:

Zhong Weiliang, Tan Wei, Li Zhenwei, Li Huaimin, Liu Liyan.Numerical Simulation and Vibration Test Analysis of Large-Scale Decanter Centrifuge Base on Fluid-Structure Interaction[J] Chemcial Industry and Engineering, 2018,V35(2): 62-69

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