Flexible coupling including a flexible diaphragm element contour

Details Flexible coupling including a flexible diaphragm element contour Flexible coupling including a flexible diaphragm element contour

1989-05-12

1992-10-27

Stodola, Daniel P.

Rotary shafts, gudgeons, housings, and flexible couplings for ro

Torque transmitted via flexible element

Element is plate with external edge completely surrounding...

464147, F16D 379

Patent

active

051585049

ABSTRACT:
A flexible coupling has at least one and more commonly a plurality of diaphragms having a particular profile. The profile has first and second contoured sections. The first contoured section has a radially-inwardly decreasing thickness and extends to near the center of the diaphragm and the second section extends therefrom and has a radially-inwardly increasing thickness such that the bending moment developed by axial deflections is small near the thinnest section or the center of the diaphragm, and the stress levels are minimized throughout the diaphragm. The diaphragm profile as described is analytically optimized to tolerate greater axial deflection and bending before the fatigue and endurance limits of the diaphragm material are reached than has heretofore been the case.

REFERENCES:
patent: 3124942 (1964-03-01), Rothfuss et al.
patent: 4092836 (1978-06-01), Wildhaber
patent: 4133188 (1979-01-01), Cartwright
patent: 4265099 (1981-05-01), Johnson et al.
Joseph Edward Shigley, Larry D. Mitchell, Mechanical Engineering Design 4th Edition, 1983, McGraw-Hill, p. 810, 811, 839.

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