Author: Giri PadmasolalaPublisher:
ISBN:
Category :
Languages : en
Pages : 120
Book Description
Dynamic Analysis of Spur Gears Considering Tooth Spacing Error and Profile Modification
Author: Giri PadmasolalaDynamic Analysis of High Contact Ratio Spur Gears Considering Tooth Spacing Error and Profile Modification
Author: Jing LiuInfluence of Tooth Spacing Error on Gears With and Without Profile Modifications
Author: Dynamic Analysis of Spur Gears with Tooth Profile Mofification and Tooth Spacing Error
Author: Khoa D. NguyenRegular 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.
Minimizing the Dynamic Load of High Contact Ratio Spur Gear Using Profile Modification
Author: Srijana ShahPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
One of the major concern in the design of power transmission gear is the reduction of gear dynamic load. Research on gear noise and vibration has revealed that the basic mechanics of noise generated from gearing is gear box vibration excited by the dynamic load. This thesis studies the effect of tooth spacing errors on the dynamic load of high contact ratio spur gear subjected to unideal loading conditions. Spur gear is the simplest kind gear available. Spur gears have their teeth parallel to the axis of rotation and are used for transmitting power between two parallel shafts. Three types of spacing error distribution are defined and studied: type I (short span), type II (medium span), and type III (long span). Three different kinds of modification have been considered: linear, parabolic 1, parabolic II. The range of loading is changed from 0.75 times to 1.25 times of design load which is 2200 lb.-inch. A computer simulation has been conducted to investigate the effectiveness of profile modification for reducing dynamic loads in high-contact-ratio gears with different tooth spacing errors. The simulation examined varying amplitudes of spacing errors and differences in the span of teeth over which the errors occur. The dynamic analysis was performed using a revised version of a NASA gear dynamics code, modified to take into consideration the tooth spacing errors in the dynamic analysis. The findings of this study can be used to design robust tooth profile modification for improving the dynamic performance of high-contact-ratio gear sets with different tooth spacing errors when subjected to unideal loading condition.
Effects of Tooth Spacing Error and Tooth Profile Modification on Dynamic Load of Spur Gears
Author: Jie GaoDynamic Analysis of Spur Gear Transmissions (DANST). PC Version 3.00 User Manual
Author: Dynamic Analysis of Spur Gear Transmissions (Danst). PC Version 3.00 User Manual
Author: National Aeronautics and Space Administration (NASA)Publisher: Createspace Independent Publishing Platform
ISBN: 9781722184773
Category :
Languages : en
Pages : 26
Book Description
DANST is a FORTRAN computer program for static and dynamic analysis of spur gear systems. The program can be used for parametric studies to predict the static transmission error, dynamic load, tooth bending stress and other properties of spur gears as they are influenced by operating speed, torque, stiffness, damping, inertia, and tooth profile. DANST performs geometric modeling and dynamic analysis for low- or high-contact-ratio spur gears. DANST can simulate gear systems with contact ratios ranging from one to three. It was designed to be easy to use and it is extensively documented in several previous reports and by comments in the source code. This report describes installing and using a new PC version of DANST, covers input data requirements and presents examples. Oswald, Fred B. and Lin, Hsiang Hsi and Delgado, Irebert R. Glenn Research Center RTOP 505-62-36; DA Proj. 1L1-62211-A-47A...
Dynamic Analysis of Spur Gears Using Computer Program DANST
Author: Fred B. OswaldPublisher:
ISBN:
Category : Computer programs
Languages : en
Pages : 16
Book Description