A resonance type gear fatigue tester has been developed for fast and efficient evaluation of tooth-root fatigue strength. This tester is a sort of pulsating-type, and operates under quasi-resonance condition. One test gear is held stationary and the mating gear fastened to a vibratory shaft oscillates against the stationary gear. The torsional vibration of the shaft is excited by a rotating eccentric. The torque amplitude is controlled automatically by varying the rotational speed of the eccentric and is maintained during a test. Fatigue tests and measurements of tooth-root strain were conducted on three kinds of helical gears, whose results were compared with those of a running-type fatigue tester. The results indicated that the tooth-root fatigue strengths with the resonance-type tester agreed with the running-type tester by taking the compressive strain which occurred at the tooth-root on the tension side in meshing, the dynamic load and the supporting rigidity in to acocunt.
Resonance type gear fatigue tester
Prüfgerät auf Resonanzgrundlage für Zahnradermüdung
SAE-Papers ; 1-6
1991
6 Seiten, 12 Bilder, 1 Tabelle, 11 Quellen
Aufsatz (Konferenz)
Englisch
Resonance type gear fatigue tester
Kraftfahrwesen | 1991
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