Investigations on Dynamic Analysis of Propeller Shaft

Abstract:

In recent years investigation of torsional vibration characteristics of the shaft systems transmitting torque, has become important part of the designer’s responsibility. Satisfactory operation of heavy duty transmission system may depend to a large extent upon the successful handling of the vibration problem. Propeller shaft of most of the vehicles are found to show number of modes of failures. Most destructive failure after thorough study of the system involving Propeller shaft is rupture of tubes & excessive bending caused due to torsional shear stresses that get imposed during running time of propeller shaft. Based upon above problem, new methodology has been devised to come up with new technique for determination of torsional stresses across cross sections of the shafts. TATA LP/LPO 1510 model chosen for the propeller shaft analysis and data provided by M.S.R.T.C. workshop bhandara (M.S.). Frequency response analysis (FRA) that has been worked out in found to show number of failures modes, each mode being representation of operation speed which is equal to excited natural frequency. Predicted frequency range is having excellent with practical results. Stresses that are obtained are of low magnitude (torsional stresses) but effect of this low modal amplitude will be excessive bending of shaft which causes the bending stresses of 72 N/mm2 while permissible is 83.7 N/mm2.

• Periodical: Applied Mechanics and Materials (Volumes 592-594)
• Pages: 1225-1234
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.592-594.1225
• Online since: July 2014
• Authors: Girish Bhiogade*, Jiwak G. Suryawanshi
• Keywords: Critical Speed, FRA, Modeling Methods, MSRTC, Propeller Shaft

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