THE OPTIMUM DESIGN OF A ROTATING SHAFT FOR COMBINED FATIGUE STRENGTH

A method is presented for the optimal design of a shaft in a general case of loading, time-variable stresses due to the rotation of the shaft taking place. The criterion being the minimum volume, the problem is essentially the determination of the shape of equal fatigue strength. For a complex case the fatigue strength is determined on the ground of an hypothesis which makes use of schematized fatigue diagrams for simple cases. An effective solution for the general case is obtained by the small parameter method. Namely, small parameters take into account the influence of tension and shearing on the design of a shaft subject to simultaneous bending and torsion. The range of validity of the solution is analyzed. Conditions that the loading of the shaft must fulfill when the obtained formula determining the optimal cross section is applied are stated. A simple example of the design of the shaft for a given scheme of loading is also given.

• Corporate Authors:

  Export and Import Enterprise "Ruch"

  Wronia 23
  Warsaw,   Poland 
• Authors:
  • Latos, W
  • Zyczkowski, M
• Publication Date: 1973

Media Info

• Features: References;
• Pagination: p. 341-351
• Serial:
  • Academie Polonaise des Sci-Bull-Ser des Sci Techs
  • Volume: 21
  • Issue Number: 7-8
  • Publisher: Export and Import Enterprise "Ruch"

Subject/Index Terms

• TRT Terms: Equipment design; Fatigue (Mechanics); Propeller shafts; Shafts (Machinery); Stresses
• Uncontrolled Terms: Fatigue life
• Old TRIS Terms: Propeller shaft design; Shaft stresses
• Subject Areas: Design; Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00054876
• Record Type: Publication
• Source Agency: Shock and Vibration Digest
• Files: TRIS
• Created Date: Jul 15 1974 12:00AM