Log in

Relevant bibliographies by topics / Crowning gear

Contents

Journal articles
Dissertations / Theses
Book chapters
Conference papers

Academic literature on the topic 'Crowning gear'

Author: Grafiati

Published: 28 June 2021

Last updated: 2 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Crowning gear.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Crowning gear"

1

Zhang, Fang You, Xi Jie Tian, Huan Yong Cui, and Tai Ran Liu. "The Method of Accurate Variable Curvature Crowning of Involute Straight Bevel Gear." Advanced Materials Research 712-715 (June 2013): 1705–13. http://dx.doi.org/10.4028/www.scientific.net/amr.712-715.1705.

Full text

Abstract:

Involute straight bevel gear pair often appears the phenomenons of meshing interference, impact and "end contact" in the course of meshing. Usually, symmetrical crowning is adopted to improve above phenomenons, however, due to the influence of complicated tooth loads and other complicated factors, the symmetrical crowned gear may not reach a good modification effect. In this paper, we adopt target variable curvature crowning according to the specific conditions of bevel gears in order to obtain good modification effect, nevertheless, because of the complexity of the variable curvature crowning

APA, Harvard, Vancouver, ISO, and other styles

2

Wei, Yan Gang, and Wu Chu Tang. "The Edge Effect and Longitudinal Modification of Involute Gear Drive Used in Automobile." Applied Mechanics and Materials 367 (August 2013): 136–40. http://dx.doi.org/10.4028/www.scientific.net/amm.367.136.

Full text

Abstract:

Via combining parameterized modeling function of Pro/E with gear mesh principle, the accurate 3-D crowning modification models of involute gears used in automobile are made. The edge effect in meshing process of the gear pair is validated by finite element method. The longitudinal corrections of a gear pair are designed combining crowning technology of roller bearings with the characteristic of gear mesh and using gear mesh principle and contact mechanics theory. Then it is testified by FEA that the maximum stresses of the gears can be reduced effectively since longitudinal correction can avoi

APA, Harvard, Vancouver, ISO, and other styles

3

Liu, Siyuan, Chaosheng Song, Caichao Zhu, and Qi Fan. "Concave modifications of tooth surfaces of beveloid gears with crossed axes." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 233, no. 4 (2018): 1411–25. http://dx.doi.org/10.1177/0954406218768842.

Full text

Abstract:

The mathematical models of the beveloid gear surfaces with different scenarios of combinations of profile concave modification and lead crowning are derived. Four schemes of modifications were proposed for beveloid gears with crossed axes. Tooth contact analysis is developed to study the influences of different schemes of concave modifications on the mesh behaviors including film thickness, transmission errors, contact ratio, root stresses, and contact patterns. Comparison of the contact characteristics of a beveloid gear drive with and without concave modifications is conducted. The results s

APA, Harvard, Vancouver, ISO, and other styles

4

Pazyak, A. A., and V. N. Syzrantsev. "LONGITUDINAL CROWNING OF THE GEAR TOOTH SURFACE OF STRAIGHT BEVEL GEARS WITH A SMALL SHAFT ANGLE WITHNON-GENERATED GEAR AND GENERATED PINION." Oil and Gas Studies, no. 3 (July 1, 2016): 122–29. http://dx.doi.org/10.31660/0445-0108-2016-3-122-129.

Full text

Abstract:

The aim of this thesis is to develop computer program shows generating process of the longitudinal-crowned gear for straight bevel gears with a small shaft angle with non-generated gear and generated pinion. The purpose of computer program is the simulation of meshing and contact of the gear tooth surface with longitudinal crowning and straight pinion tooth surface with localized bearing contact.

APA, Harvard, Vancouver, ISO, and other styles

5

Tran, Van The, Ruei Hung Hsu, and Chung Biau Tsay. "A Methodology for Longitudinal Tooth Flank Crowning of the Helical Gear on a CNC Honing Machine." Advanced Materials Research 1091 (February 2015): 53–62. http://dx.doi.org/10.4028/www.scientific.net/amr.1091.53.

Full text

Abstract:

The gear honing is the most economical way for hard finishing an involute helical gear after hobbing and heat treatment or after shaving and heat treatment. The gear honing can also be applied to the modification of gear tooth surfaces to compensate for the distortions that occur during heat treatment process. Most published papers on the technology of gear honing describes on the principle of generated gear surface. However, the longitudinal tooth flank crowning of a helical gear with honing has not been investigated yet. Therefore, in this paper, we proposed a novel method for longitudinal t

APA, Harvard, Vancouver, ISO, and other styles

6

Simon, V. "Optimal Tooth Modifications for Spur and Helical Gears." Journal of Mechanisms, Transmissions, and Automation in Design 111, no. 4 (1989): 611–15. http://dx.doi.org/10.1115/1.3259044.

Full text

Abstract:

A method for the simultaneous calculation of optimal tooth tip relief and tooth crowning for spur and helical gears is presented in this paper. The tooth profile modification is described by a linear function. Two types of crowning are introduced: linear and parabolic. The optimization of the tooth modifications is based on the following conditions: (1) The teeth are entering in mesh smoothly, without interference. (2) The load distribution factor is minimized. A computer program is developed for the calculation of the optimal tooth tip relief and crowning for spur and helical gears. By using

APA, Harvard, Vancouver, ISO, and other styles

7

Tran, Van-The. "Generation of a double-crowned involute helical gear with twist-free tooth flanks by a CNC hobbing machine with three synchronous axes." Vietnam Journal of Mechanics 39, no. 2 (2017): 97–108. http://dx.doi.org/10.15625/0866-7136/8005.

Full text

Abstract:

In the conventional hobbing process, a double-crowned involute helical gear is generated by the hob cutter with parabolic-curve tooth profiles for the cross-profile crowning and varied the center distance between the hob and work gear for the longitudinal crowning. Therefore, to cut a double-crowned helical gear not only requires at least four synchronous axes and hob cutter regrinding (which increases production costs) but also induces twisted tooth flanks on the generated work gear. In this paper, I propose a hobbing method by applying a modified work gear rotation angle that enables double-

APA, Harvard, Vancouver, ISO, and other styles

8

Wu, Yu Ren, and Van The Tran. "Lead Crowning and Anti-Twist for Tooth Flank of a Heat Treated Helical Gear on Internal CNC Honing Machine." Applied Mechanics and Materials 799-800 (October 2015): 554–59. http://dx.doi.org/10.4028/www.scientific.net/amm.799-800.554.

Full text

Abstract:

The internal gear honing is more popular than the external gear honing by its advantages such as higher contact surface and easier correct profile errors. It is usually applied for modifying the gear surface to compensate for the distortions after heat treatment process. However, the lead crowning and anti-twist tooth flank of a helical gear on internal CNC gear honing has not studied yet. Therefore, a novel method for lead crowning tooth flank of work gear surfaces is proposed by using a linear swivel angle function of the honing wheel and a variable pressure angle (VPA) honing wheel is also

APA, Harvard, Vancouver, ISO, and other styles

9

Feng, P. H., F. L. Litvin, D. P. Townsend, and R. F. Handschuh. "Determination of Principal Curvatures and Contact Ellipse for Profile Crowned Helical Gears." Journal of Mechanical Design 121, no. 1 (1999): 107–11. http://dx.doi.org/10.1115/1.2829410.

Full text

Abstract:

Helical gears with localized bearing contact of tooth surfaces achieved by profile crowning of tooth surfaces are considered. Profile crowning is provided by application of two imaginary rack-cutters with mismatched surfaces. The goal is to determine the dimensions and orientation of the instantaneous contact ellipse that requires the determination of principle curvatures of pinion-gear tooth surfaces. A simplified solution to this problem is proposed based on the approach developed in [1, 2] for correlation of principal curvatures and directions of generating and generated tooth surfaces. The

APA, Harvard, Vancouver, ISO, and other styles

10

Jiao, Ji Song, and Xue Mei Cao. "Generation and TCA of Straight Bevel Gear Drive with Modified Geometry." Applied Mechanics and Materials 86 (August 2011): 403–6. http://dx.doi.org/10.4028/www.scientific.net/amm.86.403.

Full text

Abstract:

In order to reduce the sensitivity of straight bevel gear drives to misalignment, a new geometry of such gear drives is proposed in longitudinal direction. Point contact instead of line contact of tooth surfaces is achieved by longitudinal crowning of pinion tooth surface. The tooth surface modeling and tooth contact analysis (TCA) of straight bevel gear drives have been established. TCA program of a pair of straight bevel gears was performed in MATLAB and tooth bearing contact and transmission errors were obtained.

APA, Harvard, Vancouver, ISO, and other styles

Dissertations / Theses on the topic "Crowning gear"

1

Pelíšek, Vojtěch. "Konstrukční návrh zubové spojky pro aplikaci v kolejové dopravě." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-444957.

Full text

Abstract:

The aim of this work was to create a design of a gear coupling for railway vehicle application. The work presents a comprehensive view of this issue. First of all, a brief theoretical introduction to the issue is made. The practical part follows, where the design of the whole coupling and especially the newly designed solutions are described in detail. The strength analysis performed deal with the key components that are necessary to ensure safe operation. These analyses can be applied not only for this particular case, but also to gear couplings of different designs, because in principle thes

APA, Harvard, Vancouver, ISO, and other styles

2

Chiang, Chin-Chan, and 姜智展. "An Investigation on Dynamic Characteristics of Crowning Spur Gear Pairs." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/41965433478617513487.

Full text

Abstract:

碩士<br>中華大學<br>機械工程學系碩士班<br>97<br>Theoretically, spur gears has the excellent feature of high precision, low abrasion, high stable, high performance, and easy to produce. However, numerous factors, such as machining and assembly errors, backlash, and number change of meshing tooth pairs, may deteriorate the dynamic performance. Fortunately, the negative effect can be effectively improved through suitable design technique, such as profile or crowning modifications of gears during the design phase. Therefore, in this thesis, an investigation is carried on concerning the dynamic characteristics of

APA, Harvard, Vancouver, ISO, and other styles

3

Van, Tran The, and 陳文勝. "Methodologies for Longitudinal Crowning and Double-Crowning of an Involute Helical Gear with Twist-Free Tooth Flanks Generated by CNC Gear Shaving and Hobbing Machines." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/38674231760409939687.

Full text

Abstract:

博士<br>逢甲大學<br>機械與航空工程博士學位學程<br>103<br>Involute helical gears are widely used in many industrial applications (e.g., reducers and transmissions) and such gears with longitudinal and double crowned tooth flanks are particularly important for misaligned assembly gear pairs, which improve bearing contact and reduce noise. Conventionally, the longitudinal or double crowning tooth flank of helical gears can be accomplished by changing the center distance between the cutter and work gear in CNC gear hobbing and shaving process. However, this variation of the center distance without a crossed angle co

APA, Harvard, Vancouver, ISO, and other styles

4

Wu, Fu-Chuan, and 吳福傳. "TOOTH CONTACT ANALYSIS OF STRAIGHT BEVEL GEAR PAIR WITH CROWNING TEETH." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/4aed2j.

Full text

Abstract:

碩士<br>國立臺灣科技大學<br>機械工程系<br>105<br>The mathematical models for tooth contact analysis (TCA) of a gear pair have been well derived in the literature. TCA includes evaluation of contact path, angle transmission error, and elliptical contact pattern. The existing method is systematic, efficient, and commonly applied in gear industry. However, it has a drawback in unstable solution when the edge contact happens. Normal vectors of tooth surfaces of the pinion and gear at the edge point do not collinear that leads to a divergence in solving nonlinear equations. In addition, an ellipse is adopted to a

APA, Harvard, Vancouver, ISO, and other styles

5

Wang, Wei-hsiang, and 王韋翔. "STUDY ON THE DUAL FACE-HOBBING METHOD FOR CYCLOIDAL CROWNING OF HELICAL GEARS." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/20131773764587208695.

Full text

Abstract:

博士<br>國立中正大學<br>機械工程所<br>98<br>Of the gear pairs and transmissions that play an important role in many industrial applications—including vehicles and machine and power tools—involute helical gears are among the most common because of their simple geometry, easy manufacturing, and low sensitivity to center distance. However, the conventional helical gear pair meshes in line contact, is very sensitive to assembly errors, and is prone to edge contact problems. Therefore, based on the theory of gearing and differential geometry, this investigation proposes a novel face-hobbing method to generate a

APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "Crowning gear"

1

Ivanov, Viktor, Galyna Urum, and Svitlana Ivanova. "Achieving Crowning Contact of Spur Bevel Gears Through Deliberately Introduced Mounting Errors." In New Technologies, Development and Application III. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-46817-0_10.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Vij, N., S. Sayyed, and S. Singh. "Spur/helical gear tooth contact pattern optimization through “conical helix angle correction” and “lead crowning”." In International Gear Conference 2014: 26th–28th August 2014, Lyon. Elsevier, 2014. http://dx.doi.org/10.1533/9781782421955.1188.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

KAWAMOTO, Shigeru, Norihisa ARAI, and Nobuo ARAKAWA. "Study on the Optimum Crowning Both for Tooth Profile and Tooth Trace of Spiral Bevel Gear." In International Progress in Precision Engineering. Elsevier, 1993. http://dx.doi.org/10.1016/b978-0-7506-9484-1.50085-3.

Full text

APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Crowning gear"

1

Wei, J., Y. Yao, and K. Zhang. "Contact analysis and surface optimization of crowning gear coupling." In HPSM/OPTI 2016. WIT Press, 2016. http://dx.doi.org/10.2495/hpsm160421.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Feng, Pin-Hao, Faydor L. Litvin, Dennis P. Townsend, and Robert F. Handschuh. "Determination of Principal Curvatures and Contact Ellipse for Profile Crowned Helical Gears." In ASME 1998 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/detc98/ptg-5778.

Full text

Abstract:

Abstract Helical gears with localized bearing contact of tooth surfaces achieved by profile crowning of tooth surfaces are considered. Profile crowning is analyzed through the use of two imaginary rack-cutters with mismatched surfaces. The goal is to determine the dimensions and orientation of the instantaneous contact ellipse from the principle curvatures of the pinion and gear tooth surfaces. A simplified solution to this problem is proposed based on the approach developed for correlation of principal curvatures and directions of generating and generated tooth surfaces. The equations obtaine

APA, Harvard, Vancouver, ISO, and other styles

3

Shih, Yi-Pei. "A Lengthwise Modification for Face-Hobbed Straight Bevel Gears." In ASME 2013 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/detc2013-12233.

Full text

Abstract:

Face hobbing has been successfully applying in manufacturing straight bevel gears using a virtual hypocycloidal straight-line mechanism. This method is a continuous indexing and double-flank cutting process, and is recognized its high productivity and precision. In order to improve gear contact condition, three types of flank modifications are frequently used in gear industry: profile crowning, lengthwise crowning, and longitudinal twist. In the design of the spiral bevel and hypoid gear, under satisfying a specified accuracy requirement, three types of modifications are blended properly durin

APA, Harvard, Vancouver, ISO, and other styles

4

Ogawa, Yuichi, Shigeki Matsumura, Haruo Houjoh, and Taichi Sato. "Rotational Vibration of a Spur Gear Pair Having Tooth Helix Deviation: Effect of Lead Modifications." In ASME 2003 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/detc2003/ptg-48054.

Full text

Abstract:

Lead form modification has been used to avoid detrimental effects of tooth helix deviation caused by manufacturing error or misalignment of a gear pair from the viewpoint of tooth strength on gear design. Hence parabolic crowning, elliptic crowning and end relief are adopted conventionally as a typical modified lead form. However the effect of both the shape and the amount of the lead modification on dynamic characteristics of the gear pair has not been made clear enough yet. Using the simulator which was developed by authors and is capable of analyzing vibration response of a pair of spur gea

APA, Harvard, Vancouver, ISO, and other styles

5

Gonzalez-Perez, Ignacio, Alfonso Fuentes, Faydor L. Litvin, Kenichi Hayasaka, and Kenji Yukishima. "Application and Investigation of Modified Helical Gears With Several Types of Geometry." In ASME 2007 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/detc2007-34027.

Full text

Abstract:

Involute helical gears with modified geometry for transformation of rotation between parallel axes are considered. Three types of topology of geometry are considered: (1) crowning of pinion tooth surface is provided only partially by application of a grinding disk; (2) double crowning of pinion tooth surface is obtained applying a grinding disk; (3) concave-convex pinion and gear tooth surfaces are provided (similar to Novikov-Wildhaber gears). Localization of bearing contact is provided for all three types of topology. Computerized TCA (Tooth Contact Analysis) is performed for all three types

APA, Harvard, Vancouver, ISO, and other styles

6

Artoni, A., M. Gabiccini, and M. Guiggiani. "Synthesis of Hypoid Gear Surface Topography by a Nonlinear Least Squares Approach." In ASME 2007 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/detc2007-34052.

Full text

Abstract:

This paper outlines a systematic methodology for finding the machine setting corrections required to obtain a predesigned ease-off surface in spiral bevel and hypoid gear teeth. The problem is given a nonlinear least squares formulation which, however, is highly prone to numerical instabilities. The Levenberg–Marquardt algorithm with a trust region strategy turned out to be quite effective and robust to obtain feasible solutions. The proposed method was tested on lengthwise crowning, profile crowning and spiral angle correction. In all cases, the goal was achieved with very high accuracy, in a

APA, Harvard, Vancouver, ISO, and other styles

7

Yu, Zhiyuan. "Loaded Tooth Contact Pattern Analysis for Strain Wave Gear With Non-Elliptical Wave Generator." In ASME 2019 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/detc2019-97464.

Full text

Abstract:

Abstract This paper presents a new non-elliptical wave generator for strain wave gear to improve its contact pattern quality. The new wave generator has a polynomial profile at one cross section, then crowned along the lead direction. The lead crowning uses a parabolic function with crowning amount controlled by parabolic coefficient. Loaded tooth contact pattern analysis based on finite element method is used to evaluate the new design. The result shows that the new design will avoid the edge contact between wave generator and flexspline, which reduces contact pressure and improve the wearing

APA, Harvard, Vancouver, ISO, and other styles

8

Kim, H. A., M. A. Allen, D. H. Ditto, and J. A. Wickert. "Development Process to Optimize and Quantify Effectiveness of Differential Crowning™ for Noise Reduction in Drivetrains." In ASME 2000 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/detc2000/ptg-14422.

Full text

Abstract:

Abstract Noise and vibration are undesirable side effects associated with the use of spur gears in drivetrains. With market pressures for higher power densities, the development of high performance drivetrains with reduced noise and vibration thresholds forms a generic problem in the power transmission and gearing fields. In this paper, a process to reduce mesh stiffness variation in a spur gear set through the use of Differential Crowning™ technology, with concomitant reductions in acoustic noise and structure borne vibration, is presented. Through certain topological modifications to the pro

APA, Harvard, Vancouver, ISO, and other styles

9

Tran, Van-The, Ruei-Hung Hsu, and Chung-Biau Tsay. "A Novel Finish Hobbing Methodology for Longitudinal Crowning of a Helical Gear With Twist-Free Tooth Flanks by Using Dual-Lead Hob Cutters." In ASME 2014 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/imece2014-36149.

Full text

Abstract:

In the gear finish hobbing process, to obtain a twist-free tooth flank of helical gears, a novel hobbing method for longitudinal crowning is proposed by applying a new hob’s diagonal feed motion with a dual-lead hob cutter. Wherein the hob’s diagonal feed motion is set as a second order function of hob’s traverse movement and tooth profile of hob cutter is modified in a dual-lead form with pressure angle changed in it’s longitudinal direction. The proposed method is verified by using two computer simulation examples to compare topographies of the crowned work gear surfaces hobbed by the standa

APA, Harvard, Vancouver, ISO, and other styles

10

Moriwaki, Ichiro, Syunpei Ogaya, and Koji Watanabe. "Stress Analysis of Face Gear Tooth Subject to Distributed Load Using Global Local Finite Element Method (GLFEM)." In ASME 2003 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/detc2003/ptg-48037.

Full text

Abstract:

The present paper describes a stress analysis of a face gear tooth subject to a distributed load. The distributed load was determined from an initial mismatch between meshing tooth flanks through geometrical analysis. A new global local finite element method was used for the analysis. In the global local finite element method, an analytical domain is divided into two parts; a global domain in which fields are defined by an analytical solution derived from a classical elastic theory, and a local domain in which fields defined by a finite element solution. Furthermore, tooth flank film elements,

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!