Download or read book The Transmission Error of Spur Gears Considering Tooth Separation Distance and Profile Modification written by Ping-hsun Lin and published by . This book was released on 1992 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Influence of Tooth Spacing Error on Gears With and Without Profile Modifications written by and published by . This book was released on 2000 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Regular and Irregular Type Spacing Error with Tooth Profile Modification Effect on Dynamic Load of Spur Gear System written by Yuxin Qi and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Dynamic Analysis of Spur Gears with Tooth Profile Mofification and Tooth Spacing Error written by Khoa D. Nguyen and published by . This book was released on 2000 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book New Trends in Mechanism and Machine Science Theory and Applications in Engineering Mechanisms and Machine Science written by Fernando Viadero and published by Springer Nature. This book was released on 2013 with total page 405 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book 91 3460 92 3499 written by and published by . This book was released on 1992 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Minimizing the Dynamic Load of High Contact Ratio Spur Gear Using Profile Modification written by Srijana Shah and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book An Experimental Investigation of the Effect of Spacing Errors on the Loaded Transmission Error of Spur Gear Pairs written by Brian Anichowski (Jr.) and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper complements recent investigations [Handschuh et al. (2014), Talbot et al. (2016)] of the influences of tooth indexing errors on dynamic factors of spur gears by presenting data on changes to the dynamic transmission error. An experimental study is performed using an accelerometer-based dynamic transmission error measurement system incorporated into a high-speed gear tester to establish baseline dynamic behavior of gears having negligible indexing errors, and to characterize changes to this baseline due to application of tightly-controlled intentional indexing errors. Spur gears having different forms of indexing errors are paired with a gear having negligible indexing error. Dynamic transmission error of gear pairs under these error conditions is measured and examined in both time and frequency domains to quantify the transient effects induced by these indexing errors. These measurements are then compared against the baseline, no error condition, as a means to quantify the dynamic vibratory behavior induced due to the tooth indexing errors. These comparisons between measurements indicate clearly that the baseline dynamic response, dominated by well-defined resonance peaks and mesh harmonics, are complemented by non-mesh orders of transmission error due the transient behavior induced by indexing errors. In addition, the tooth (or teeth) having indexing error imparts transient effects which dominate the vibratory response of the system for significantly more mesh cycles than the teeth having errors are in contact. For this reason, along with the results presented in Talbot et al. (2016), it was concluded that spur gears containing indexing errors exhibit significant deviations from nominal behavior, at both a system and time-domain level.

Download or read book Separation Distance and Static Transmission Error of Involute Spur Gears written by David K. Tse and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Optimum Profile Modifications for the Minimization of Static Transmission Errors of Spur Gears written by M. S. Tavakoli and published by . This book was released on 1984 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A procedure for computing static transmission errors and tooth load sharing was developed for low and high contact ratio internal and external spur gears.

Download or read book Dynamic Analysis of Spur Gear Transmissions DANST PC Version 3 00 User Manual written by and published by . This book was released on 1996 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Investigation Into the Impact of Random Spacing Errors on Static Transmission Error and Root Stresses of Spur Gear Pairs written by Michael James Handschuh and published by . This book was released on 2013 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: In this study, theoretical and experimental investigations of the effect of tooth spacing errors on the motion transmission error and root stresses of spur gear pairs are performed. A test setup with dedicated instrumentation for the measurement of the static transmission error and root stresses is devised. A number of experiments are performed with gears having deterministic spacing errors (at one or two teeth only) and random spacing errors (all teeth having a random distribution of errors as in a typical production gear). A test matrix defined by a range of torque at a very low speed is executed with each error configuration to experimentally quantify the influence of spacing errors on the static transmission error and the gear tooth root stresses. The results of these experiments form an extensive database on the impact of spacing errors on the static transmission error (a typical noise metric) and the root stresses (a durability metric). These experiments are simulated by using two existing gear contact models to demonstrate their accuracy and describe the empirical trends physically. A methodology is proposed at the end to relate increases in root stresses to the spacing error magnitudes directly. Closed-form expressions resulting from this methodology allow determination of the stress amplification factors due to a certain range of spacing error tolerances as well as quantifying how much spacing error can be tolerated within a user defined stress limit.

Download or read book A Method to Define Profile Modification of Spur Gear and Minimize the Transmission Error written by M. Beghini and published by . This book was released on 2004 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effect of Extended Tooth Contact on the Modeling of Spur Gear Transmissions written by and published by . This book was released on 1993 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Gear Noise and Vibration written by J. Derek Smith and published by CRC Press. This book was released on 2003-04-08 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on over 40 years of consultation and teaching experience, Gear Noise and Vibration demonstrates logical gear noise and vibration approaches without the use of complex mathematics or lengthy computation methods. The second edition offers new and extended discussions on high- and low-contact ratio gears, lightly loaded gears, planetary and spli

Download or read book Influence of Profile Modifications on Transmission Error and Noise of Spur Gears written by Fabrizio Rossi (; Milano>) and published by . This book was released on 2010* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Power Transmissions written by George Dobre and published by Springer Science & Business Media. This book was released on 2013-07-11 with total page 729 pages. Available in PDF, EPUB and Kindle. Book excerpt: This books contains the Proceedings of the 4th International Conference on Power Transmissions, that was held in Sinaia, Romania from June 20 -23, 2012. Power Transmissions is a very complex and multi-disciplinary scientific field of Mechanical Engineering that covers the different types of transmissions (mechanical, hydraulic, pneumatic) as well as all the machine elements involved, such as gears, bearings, shafts, couplings and a lot more. It concerns not only their basic theory but also their design, analysis, testing, application and maintenance. The requirements set to modern power transmissions are really tough to meet: They need to be more efficient, stronger, smaller, noiseless, easier to produce and to cost less. There is a strong demand to become easier in operation and maintenance, or even automatic and in maintenance-free. Last but not least, they should be easily recycled and respect the environment. Joint efforts of specialists from both academia and industry can significantly contribute to fulfill these needs. The main goal of this conference was to bring together experts from all over the world and present the latest developments in the field of Power Transmissions.