Rocket motor gear tooth analysis (Hertzian contract stresses and times)
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Authors
Gatcombe, Ernest K.
Prowell, Roy W.
Subjects
Advisors
Date of Issue
1960-08
Date
Publisher
ASME
Language
Abstract
In this paper a rocket motor turbine-pump reduction gear system is analyzed in regard to Hertzian gear tooth contact stresses and times of contact. It is found that the Hertzian contact stresses vary from approximately 100,000 psi to 200,000 psi. The times
of contact vary from three to eight viicrosec. Some observations regarding the correlation between contact times and gear failures are made. It is indicated that it may be possible to establish design limitations on the contact times to insure satisfactory
gear operation. Sample calculations for evaluating each of the typical quantities found in the tables are included.
Type
Article
Description
Series/Report No
Department
Mechanical Engineering
Organization
Naval Postgraduate School (U.S.)
Identifiers
NPS Report Number
Sponsors
Sponsored in part by ONR
Funder
Format
Citation
Contributed by the Machine Design Division and presented at the Annual Meeting, Atlantic City, N.J. November 29-December 4,
1959, of THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS, Paper no. 59--A-256,Transactions of the ASME, Journal of Engineering for Industry, August 1960, pp. 223-229.