Author: Fred B. OswaldPublisher:
ISBN:
Category :
Languages : en
Pages : 14
Book Description
Influence of Tooth Profile Modification on Spur Gear Dynamic Tooth Strain
Author: Fred B. OswaldInfluence of Linear Profile Modification and Loading Conditions on the Dynamic Tooth Load and Stress of High Contact Ratio Gears
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 13
Book Description
This paper presents a computer simulation for the dynamic response of high-contact-ratio spur gear transmissions. High contact-ratio spur gear transmissions. High contact ratio gears have the potential to produce lower dynamic tooth loads and minimum root stress but they can be sensitive to tooth profile errors. The analysis presented in this paper examines various profile modifications under realistic loading conditions. The effect of these modifications on the dynamic load (force) between mating gear teeth and the dynamic root stress is presented. Since the contact stress is dependent on the dynamic load, minimizing dynamic loads will also minimize contact stresses. This paper shows that the combination of profile modification and the applied load (torque) carried by a gear system has a significant influence on gear dynamics. The ideal modification at one value of applied load will not be the best solution for a different load. High-contact-ratio gears were found to require less modification than standard low-contact-ratio gears.
Influence of Tooth Spacing Error on Gears With and Without Profile Modifications
Author: Regular and Irregular Type Spacing Error with Tooth Profile Modification Effect on Dynamic Load of Spur Gear System
Author: Yuxin QiPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The dynamic load of gears with regular type of spacing error such as full-sine and half-sine type has been analyzed in several previous research works. In this study, the irregular type of tooth spacing error is incorporated with the regular type ones to determine their effect on gear dynamic response. Linear and Parabolic tooth profile modification are applied to evaluate their influence on the dynamic loads of gear systems with regular or irregular tooth spacing errors. All dynamic analyses are conducted using the NASA gear dynamics code, DANST program.The objective of this study is to examine the relationship between gear dynamic load, type and extent of tooth spacing error, and profile modifications. Results obtained from this study can provide proper tooth profile design to minimize the dynamic response of the spur gear systems for a better transmission design.
Dynamic Loading of Spur Gears with Linear Or Parabolic Tooth Profile Modifications
Author: Hsiang Hsi LinPublisher:
ISBN:
Category :
Languages : en
Pages : 17
Book Description
A computer simulation was conducted to investigate the effects of both linear and parabolic tooth profile modification on the dynamic response of low-contact-ratio spur gears. The effect of the total amount of modification and the length of the modification zone were studied at various loads and speeds to find the optimal profile modification for minimal dynamic loading. Design charts consisting of normalized maximum dynamic load curves were generated for gear systems operated at various loads and with different tooth profile modification. An optimum profile modification can be determined from these design charts to minimize the dynamic loads of spur gear systems. Keywords: Spur gears, Gear teeth, Gear noise, Gearboxes, Dynamic load, Profile modification, Transmission error, Gear design. (SDW).
Author: 
Author: Jie Gao
Author: Can Yuksel
Author: 
Author: Monsak Pimsarn