control of transmission error of high contact ratio spur

control of transmission error of high contact ratio spur

INFLUENCE OF MISALIGNMENT AND BACKLASH ON SPUR

The main objective of this work is to investigate the influence of shaft misalignment and backlash on the stress generated on the spur gear. Finite element analysis using ABAQUS software is used to determine the stresses and deflections on gear tooth. Three-dimensional finite element model of pinion gear engaged with a solid gear is created.

Static and Dynamic Transmissin Error in Spur Gears

In high precision and heavily loaded spur gears the effect of gear errors is negligible, so the periodic variation of tooth stiffness is the principal cause of noise and vibration. High contact ratio spur gears could be used to exclude or reduce the variation of tooth stiffness. (PDF) An improvement on helicopter transmission An improvement on helicopter transmission performance through use of high contact ratio spur gears with suitable profile modification design transmission error, contact ratio isolation and

(PDF) Control of transmission error of high - ResearchGate

A previously developed model for the load sharing ratio and quasi-static transmission error, based on the hypothesis of equal delay interval in all the teeth in simultaneous contact, has been used. A Further Study on High Contact Ratio Spur Gears in Mesh To achieve the benefits of High Contact Ratio Spur Gears (HCRG), its tolerance to manufacturing errors and elastic deformation has to be increased. After various attempts by previous researchers, double scope tooth profile modifications have been seen as being of major interest showing great potential for improvements in most applications.

A Further Study on High Contact Ratio Spur Gears in Mesh

Wang, J, & Howard, I. "A Further Study on High Contact Ratio Spur Gears in Mesh With Double Scope Tooth Profile Modification." Proceedings of the ASME 2007 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. Volume 7:10th International Power Transmission and Gearing Conference. Las A Further Study on High-Contact-Ratio Spur Gears in another classical high-contact-ratio spur gear model, which has been used by many researchers (Refs. 1, 7 and 911). The FE Model and the Pro le Modi cation The FE model of the high-contact-ratio spur gear pair has parameters as shown in Table 1, based on the set ratio 1:1 of the test rig used by Munro for the transmission error

A Study of the Relationship Between the Dynamic Factors

Dynamic Analysis of Spur Gear Pairs:Steady-State Response and Stability of the SDOF Model With Time-varying Mesh Damping Mech. Syst. Signal Process. 0888-3270, A method of measuring transmission error in spur A system for recording transmission errors in universal joints A J Bartley and R W Gregory-The design and construction of a photoelectronic scanning machine for sizing microscopic particles P G W Hawksley, J H Blackett, E W Meyer et al.-Recent citations Load sharing model for high contact ratio spur gears with long profile modifications Jos

A systematic approach to profile relief design of low and

In the present paper, the systematic approach is applied to low contact ratio (LCR) spur gears first with some design regions and to high contact ratio (HCR) spur gears with some new and promising design regions and rules. Analytical Eions of the Efficiency of Standard and 5.2. High Contact Ratio Spur Gears, Figure 15 represents the computed values of the efficiency for a significant range of high transverse contact ratio spur gears. To get transverse contact ratio greater than 2, spur gears were considered with standard pressure angle between 14 deg and 17 deg, 50 tooth pinion, and gear ratio between 1 and 4.

Chaos and Stability of Spur Gear Transmission System for

The effects on dynamic transmission errors and stabilities by contact ratio, support stiffness, and mesh damping as well as backlash were analyzed. Farshidianfar and Saghafi [ 17 ] studied the global homoclinic bifurcation and transition to chaotic behavior of a nonlinear gear system by means of the Melnikov method. Contact Stress Analysis Of Spur Gear IJERTAli Raad Hassan, Contact Stress Analysis of Spur Gear Teeth Pair, World Academy of Science, Engineering and Technology 58, 2009, pp. 611-616. Sorin Cananau, 3D Contact Stress Analysis For Spur Gears, University Politehnica of Bucharest, Romania, 24- 25 September 2003, pp. 349-351.

Control of transmission error of high - freepaper.me

Translate this pageA previously developed model for the load sharing ratio and quasi-static transmission error, based on the hypothesis of equal delay interval in all the teeth in simultaneous contact, has been used. The simple formulation of the model allows to obtain the equation of the required profile modification to ensure a preestablished function of load Control of transmission error of high contact ratio spur A previously developed model for the load sharing ratio and quasi-static transmission error, based on the hypothesis of equal delay interval in all the teeth in simultaneous contact, has been used. The simple formulation of the model allows to obtain the equation of the required profile modification to ensure a preestablished function of load

Effect of Involute Contact Ratio on Spur Gear Dynamics

Influence of Linear Profile Modification and Loading Conditions on The Dynamic Tooth Load and Stress of High-Contact-Ratio Spur Gears J. Mech. Des (December,1991) Statistical Analysis of the Dynamic Mean Excitation for a Spur Gear Effect of Involute Contact Ratio on Spur Gear DynamicsInfluence of Linear Profile Modification and Loading Conditions on The Dynamic Tooth Load and Stress of High-Contact-Ratio Spur Gears J. Mech. Des (December,1991) Statistical Analysis of the Dynamic Mean Excitation for a Spur Gear

Finite Element Analysis of High Contact Ratio Spur Gears

The details of transmission error, combined torsional mesh stiffness, load-sharing ratio, contact stress and tooth root stress against various input loads over a complete mesh cycle are also given. Results with various tooth profile modifications are presented and comparisons between the results show evidence for the optimal profile Finite Element Analysis of High Contact Ratio Spur Gears The details of transmission error, combined torsional mesh stiffness, load-sharing ratio, contact stress and tooth root stress against various input loads over a complete mesh cycle are also given. Results with various tooth profile modifications are presented and comparisons between the results show evidence for the optimal profile

GEAR NOISE AND VIBRATION A LITERATURE SURVEY

In Welbourns earlier analyses of how pitch errors affects transmission error, he analysed pitch errors as a series of pulses and not steps as in [7]. Kohler and Regan notes, in a High Contact Ratio Gearing:A - Power & TransmissionMazuras and J. Sanchez. Design of High-Contact Ratio Spur Gears to Reduce Static and Dynamic Transmission Error, Universidad de Guadalajara, Department of Engineering, July 2003. Liou, C., H. Lin, F. Oswald and D. Townsend. Effect of Contact Ratio on Spur Gear Dynamic Load, 6th International Power Transmission and Gearing Conference

High Contact Ratio Gearing:A Technology Ready for

Mazuras and J. Sanchez. Design of High-Contact Ratio Spur Gears to Reduce Static and Dynamic Transmission Error, Universidad de Guadalajara, Department of Engineering, July 2003. Liou, C., H. Lin, F. Oswald and D. Townsend. Effect of Contact Ratio on Spur Gear Dynamic Load, 6th International Power Transmission and Gearing Conference High Contact Ratio Gearing:A Technology Ready for contact ratio of 1.99. We didnt at first understand the significance of this lim-it in conventional gear design, but after scouring our engineering library we came across a great paper by J.C. Lem-ing (Ref.1) that explained things very well. Despite the many advantages of high-contact ratio gearing that Leming

Investigation on meshing and dynamic characteristics of

May 13, 2019 · Combining the loaded tooth contact analysis (LTCA) method and the gear dynamic model, a wear prediction model for spur gears with tip relief is established. The simulated wear depth is verified by the experimental results in a published reference. Based on the wear profile, the mesh stiffness and the tooth root stress obtained from the proposed model are compared with those Load sharing model for high contact ratio spur gears with Aug 21, 2019 · Specifically, long tip relieves, beyond the interval of minimum tooth pair contact, which are unsuitable for standard contact ratio spur gears, may reduce drastically the load at the inner points of the path of contact of high contact ratio gears, though a peak of load arises at the outer interval of two pair tooth contact.

Load sharing model for high contact ratio spur gears with

Aug 21, 2019 · Specifically, long tip relieves, beyond the interval of minimum tooth pair contact, which are unsuitable for standard contact ratio spur gears, may reduce drastically the load at the inner points of the path of contact of high contact ratio gears, though a peak of load arises at the outer interval of two pair tooth contact. MEASURMENT OF TRANSMISSION ERROR IN SPUR MEASURMENT OF TRANSMISSION ERROR IN SPUR GEARS Balkishan Banodiya1,Vijay Kumar Karma2 with modern high speed manufacturing industry development, gear are widely used in many applications in order to provide the same center distance to design spur gears with a contact ratio nearly 2.0. Sorin Pater et al [8]

Mesh stiffness calculation of a spur gear pair with tooth

It is suitable for not only the gear pairs with low contact ratio (LCR), but also the gear pairs with high contact ratio (HCR). Two spur gear pair models, namely one with LCR between 1 and 2 and the other one with HCR between 2 and 3, are used to demonstrate the effectiveness of Some Guidelines on the Use of Profile Reliefs of High With reference to the previous articles of the author(s) based on the systematic approach to the profile relief design of both low contact ratio and high contact ratio spur gears, some guidelines are drawn for the use of short and double reliefs of the HCRG profile design under the effect of realistic parameters like variable tooth stiffness

The effects of the shape of tooth profile modifications on

Yildirim, N. , Some guidelines on the use of profile reliefs of high contact ratio spur gears Proc. IMechE, Part C:J. Mechanical Engineering Science 219 C10:1087 1095 DOI:10.1243/095440605X31977. Google Scholar The effects of the shape of tooth profile modifications on Yildirim, N. , Some guidelines on the use of profile reliefs of high contact ratio spur gears Proc. IMechE, Part C:J. Mechanical Engineering Science 219 C10:1087 1095 DOI:10.1243/095440605X31977. Google Scholar

Tooth Load Sharing in High-Contact Ratio Spur Gears

Research on the Longitudinal Modification of Involute Spur Cylindrical Gear Pair with Axial Angle Errors Used in Timing Drive System of Automobile International Conference on Mechanical and Electrical Technology, 3rd, (ICMET-China 2011), Volumes 13 Tooth Load Sharing in High-Contact Ratio Spur Gears Research on the Longitudinal Modification of Involute Spur Cylindrical Gear Pair with Axial Angle Errors Used in Timing Drive System of Automobile International Conference on Mechanical and Electrical Technology, 3rd, (ICMET-China 2011), Volumes 13

Transmission Error Analysis and Disturbance Optimization

For the nonlinear disturbance actual issues of the model space drive mechanism two-stage spur gear system, a nonlinear dynamic model of 14-DOF (degree of freedom) two-stage spur gear with time-varying stiffness and damping was established. This model has been developed previously by the authors to access the large inertia on the dynamic response of spur gear space driving mechanism, and its Transmission Error in Spur Gears:Static and Dynamic ~ II ~ ACKNOWLEDGEMENTS Success is sweet:the sweeter if long delayed and attained through manifold struggles and defeats. I would like to take this opportunity to

high contact ratio - Articles, News and Company results

high contact ratio - Search Results Articles About high contact ratio. Articles are sorted by RELEVANCE. Sort by Date.. 1 A Further Study on High-Contact-Ratio Spur Gears in Mesh with Double-Scope Tooth Profile Modification (November/December 2008). This paper will demonstrate that, unlike commonly used low-contact-ratio spur gears, high-contact-ratio spur gears can provide transmission error - Articles, News and Company results An investigation of transmission errors and bearing contact of spur, helical, and spiral bevel gears was performed. Modified tooth surfaces for these gears have been proposed in order to absorb linear transmission errors caused by gear misalignment and to localize the bearing contact. Numerical examples for spur, helical, and spiral bevel gears

Control of transmission error of high contact ratio spur

Jul 01, 2020 · From this model, the quasi-static transmission error of high contact ratio spur gears with symmetric long profile modifications has been studied. Specifically, the tip relief for minimum peak-to-peak amplitude of quasi-static transmission error and for minimum dynamic load -described by the slope of the transmission error curve- has been obtained.

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