Torsionally and/or Axial Soft Coupling.
Abstract
The patent application relates to a flexible rotary shaft coupling for marine use in a propeller shaft that isolates the vibration caused by axial forces on the propeller passing through an uneven wake. Torque is carried by a solid pin and link arrangement which produces negligible axial resistance. The coupling housing is substantially cup-shaped on one side and has a plunger on the other side and contains a very dense liquid or a very dense soft rubber mass formed to a hollow cylindrical shape within the coupling due to centrifugal force. This mass resists the fluctuating forces by the variation of the inside diameter of the hollow cylinder formed by centrifugal forces during rotation. Variation of stiffness of the cylindrical column is achieved by varying the distance between the coupling faces or sides.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 20, 1974
- Accession Number
- ADD001176
Entities
People
- Alfred B. Harbage
Organizations
- United States Department of the Navy