An Experimental and Numerical Investigation on Static Vibration Response of Multi-Cracked Rotor Shaft

International Conference on Mechanical, Materials and Renewable Energy

机械制造;材料科学;能源学

Jadhav, P.V.^1 ; Barawade, R.A.^2 ; Patil, S.V.^2 ; Mohite, Y.B.^2 ; Patil, V.R.^1

Bharati Vidyapeeth Deemed University College of Engineering, Pune

411043, India^1

Annasaheb Dange College of Engineering and Technology, Ashta

416301, India^2

关键词: Catastrophic failures;    Experimental investigations;    Impact hammer tests;    Numerical investigations;    Process industries;    Reliable operation;    Vibration characteristics;    Vibration response;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/377/1/012041/pdf
DOI  :  10.1088/1757-899X/377/1/012041

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Many process industries make wide use of rotating machineries such as engines, pumps and turbines. It is seen that heavy-duty and high-speed shafts develop cracks due to fatigue at some time during their life cycle. Under certain conditions, the catastrophic failure of shaft unavoidable as stress required for propagation is smaller than that required for crack initiation. The above conditions mean that the detection, diagnosis and analysis of crack plays important role in reliable operations. Using measurement of vibration characteristics condition of the machine periodically monitored. Many researchers have analyzed the nonlinear dynamic analysis of cracked rotors. In this paper, the experimental investigation has been carried on single and multi-transverse cracked rotor shafts by measurement of static vibration characteristics. The present study aims to, experimental investigation of the vibration response of uncracked, single cracked and multi-cracked rotor shaft with different size and locations of cracks. The experimental setup has been developed for measurement of natural frequency. The changes in the shaft's natural frequencies are investigated experimentally. Natural frequencies have been obtained through vibration analyzer system using impact hammer test under static conditions. The results obtained through experimentation conform to the numerical results obtained in ANSYS.