A case study on exhaust fan - FEM analysis

7th International Conference on Advanced Concepts in Mechanical Engineering

Damian, I.^1 ; Paleu, V.^2

Mechanical Engineering and Automotive Department, Gheorghe Asachi Technical University, Iasi, Romania^1

Mechanical Engineering, Mechatronics and Robotics Department, Gheorghe Asachi Technical University, Iasi, Romania^2

关键词: Fan rotors;    FEM analysis;    Normal operating conditions;    Operating speed;    Resonance phenomena;    Rotor bearing;    Welded constructions;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/147/1/012006/pdf
DOI  :  10.1088/1757-899X/147/1/012006

来源: IOP

【 摘 要 】

This paper presents a case study for an exhaust fan rotor made from elements assembled through bolted joints. For this design of the rotor and normal operating conditions the fan achieve the field of resonance, conducting to the failure of rotor bearing assembly, and finally of the entire fan. The finite element method (FEM) is used to study the stress, strain and natural frequencies of the fan rotor. The FEM analysis proves that a rotor with welded construction eliminates the disadvantage of the resonance phenomenon occurrence in the range of the normal operating speed.