Advancement of Straight and Spiral Bevel Gear Technology

reportActive / Technical Report | Accession Number: AD0864964 | Open PDF

Abstract:

The need for increased load capacity of bevel gears in aircraft applications has led to a review of existing methods for determining bevel gear tooth strength. Several methods were reviewed, but it was found that the existing AGMA method was basically the most sound. Fatigue testing of spiral bevel gears showed that vacuum-melt steel would permit higher stresses than those allowed by the present rating practices. A study of lengthwise tooth curvature cutter diameter showed that this factor has a significant effect on gear tooth strength. The use of small cutter diameters is shown to improve gear tooth strength by as much as 40 percent under the most favorable conditions. New formulas for effective face width and size factor were developed, which result in stress values more nearly equal to the true stresses in gear teeth. A change in the method for locating the most critical point of loading has resulted in an improved strength balance between the pinion and mating gear.

Author(s):
Coleman, W. ; Lehmann, E. P. ; Mellis, D. W. ; Peel, D. M.
Author Organization(s):
GLEASON WORKS ROCHESTER NY
Descriptive Note:
Final technical rept. 23 Feb 68-23 Jun 1969
Pagination:
0299

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release, Document Partially Illegible
Distribution Statement:
Availability: Document Partially Illegible.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
GW-4547, USAAVLABS-TR-69-75
Contract/Grant Number(s):
DAAJ02-68-C-0032
Task Number(s):
1G162204A01401
Project Number(s):
DA-1-G-162204-A-014
Monitor Series:
TR-69-75, USAAVLABS
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_5.3_Planning; JCA_1.2.5_Lessons Learned; JCA_4.5.4_Requirements Definition; JCA_4.5_Operational Contract Support; JCA_1.3.2_Personnel Management; JCA_1.2.6_Concepts; JCA_1.2.7_Experimentation
Modernization Areas:
Quantum Science and Computing; Fully Networked C3
Communities of Interest:
Advanced Electronics
Descriptor(s):
*AIRCRAFT ENGINES, *PROPULSION GEARS, STRESSES, COMPUTER PROGRAMS, MATHEMATICAL MODELS, REMOVAL, MANUFACTURING, PERFORMANCE(ENGINEERING), MATERIALS, LOADS(FORCES), GEOMETRIC FORMS, PRODUCTION CONTROL, DRIVES, MILLING MACHINES, PRECISION FINISHING, GRINDERS, MACHINE SHOP PRACTICE
Field(s)/Group(s):
Aircraft, Manufacturing and Industrial Engineering and Control of Production Systems, Machinery and Tools
Keyword(s):
*BEVEL GEARS, *GEARS
Report Date:
1969 Oct 01