LATERAL VIBRATION OF SHAFTING

Lateral vibration of shafting systems is one of the main analyses performed for a propulsion system design. The paper provides a history of the evolution of lateral vibration analytical methods. The approach adopted in the paper is to build on existing knowledge and provide a useful tool, through means of a computer program, to designers for the performance of lateral vibration analyses. The analytical approach selected treats the shaft as a simple Euler beam. The first case considers an undamped system. The governing equations are presented. A development of the solution to the differential equations is provided by explaining the assumptions, boundary conditions, exciting forces and steps necessary to achieve a solution to the equations. Results are provided for deflections, slopes, bending moments and bearing reactions for certain locations of interest along the shaft throughout a desired range of frequencies. A second more complex approach is developed by including hysteretic damping into the system. The computer program is capable of solving damped systems. Results of interesting studies on oil lubricated strut bearings and the response of the bearing/strut interaction are presented.

• Supplemental Notes:
  • Propellers/Shafting '94 Symposium; 20-21 Sept 1994; Virginia Beach, VA, USA. Sponsored and Publ by SNAME, USA. Pprs. Ppr no 5 [21 p, 28 ref, 2 tab, 5 fig]
• Authors:
  • Reed, F E
  • Hart, J C
  • de
• Publication Date: 1994

Language

• English

Subject/Index Terms

• TRT Terms: Propeller shafts; Vibration
• Subject Areas: Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00717749
• Record Type: Publication
• Source Agency: British Maritime Technology
• Files: TRIS
• Created Date: Mar 4 1996 12:00AM