3 edition of An investigation of the transient thermal analysis of spur gears found in the catalog.
An investigation of the transient thermal analysis of spur gears
Published
1984
by National Aeronautics and Space Administration in [Washington, D.C.?
.
Written in
Edition Notes
| Statement | Lotfi E. El-Bayoumy and Lee S. Akin and Dennis P. Townsend. |
| Series | NASA technical memorandum -- 83724. |
| Contributions | Akin, Lee S., Townsend, Dennis P., United States. National Aeronautics and Space Administration. |
| The Physical Object | |
|---|---|
| Format | Microform |
| Pagination | 1 v. |
| ID Numbers | |
| Open Library | OL17666089M |
Efficiency of nonstandard and high contact ratio involute spur gears [microform] / Neil E. Anderson and Stuart H. Loewenthal National Aeronautics and Space Administration [Washington, D.C.? Australian/Harvard Citation. Anderson, Neil E. & Loewenthal, Stuart H. & United States. Meanwhile, the influence of spray angle, jet velocity, and gear ratio on lubrication effect was obtained. Then, the transient temperature field of the tooth surface was simulated by the method of thermal-fluid coupling analysis, and the lowest temperature distribution and .
CONTACT STRESS ANALYSIS OF SPUR GEAR Mr. Bharat Gupta1, Mr. Abhishek Choubey2, Mr. Gautam V. Varde3 1HOD of Mechanical dept., OIST, Bhopal, MP 2Assistan Professor in Mechanical dept., OIST, Bhopal, MP 3Student of Mechanical dept., OIST, Bhopal, MP Abstract Contact stress is generally the deciding factor for the determination of the requisite dimensions of gears. – This paper aims to investigate the mechanism of spur gears running-in and to solve the lubrication problems of teeth running-in., – The elastohydrodynamic lubrication (EHL) model considering solid particles was established by applying multi-grid and multiple-grid integration methods to the numerical solution., – In the region where debris settle, transient pressure increases sharply.
This paper presents a brief review of elastohydrodynamic analysis in commemoration of the immense contributions of Duncan Dowson. This paper also presents an elastohydrodynamic analysis of the elliptical point contact problem under steady state as well as transient conditions. The overall methodology is validated against numerical predictions and experimental observations of . Investigation of broad gear motion Analysis of gear mechanisms and related calculations; This book is published as a part of a gear technology series that is in a planning phase. It would be fortunate if this could be utilized as a textbook or handbook for mechanical related subjects used in colleges, high schools, and academic.
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An Investigation of the Transient Thermal Analysis of Spur Gears Lotfi E. El-Bayoumy and Lee S. Akin California State University at Long Beach Long Beach, California and Dennis P. Townsend Lewis Research Center Cleveland, Ohio Prepared for the Fourth. A finite element computer program has been developed for evaluating the transient behavior of surface temperature in high performance spur gears.
The program is an extension of a previously developed code that was limited to steady-state behavior. The time dimension is implemented using two- and three-point finite difference by: 1.
In this research paper, the cooling process of an impingement cooled spur gear is examined by means of an analytical model. The process is modeled as a coolant film, which is flung off a rotating gear tooth flank by centrifugal forces. During the process, heat is transferred from the isothermal gear tooth flank to the coolant by: 1.
1 Investigation into the Meshing Friction Heat Generation and Transient Thermal Characteristics of Spiral Bevel Gears Yanzhong Wanga, Wen Tanga,*, Yanyan Chena, Tie Wangb, Guoxing Lib, Andrew.D. Ballc a School of Mechanical Engineering and Automation, Beihang University, Beijing, China.
b Department of Vehicle Engineering, Taiyuan University of Technology, Shanxi, China. Investigation into the meshing friction heat generation and transient thermal characteristics of spiral bevel gears. Transient thermal analysis of a single gear tooth.
AkkokDetermination of surface temperature rise with thermo-elastic analysis of spur gears. Wear, () (), pp./ted by: Investigation into the Meshing Friction Heat Generation and Transient Thermal Characteristics of Spiral Bevel Gears Article in Applied Thermal Engineering March with 55 Reads.
This paper presents performance characteristics of transient thermo-elastohydrodynamic lubrication (TEHL) in line contact with Newtonian fluids.
The time-dependent modified Reynolds equation, energy equation and elasticity equation with initial conditions were solved numerically using finite different method, Newton-Raphson method and multigrid multilevel method for an involutes spur gear to.
Buckingham, E.,Analytical Mechanics of Gears, McGraw-Hill Book Company, New York. AGMA C95,“Fundamental Rating Factors and Calculation Methods for Involute Spur and Helical Gear Teeth,” American Gear Manufacturers Association, Alexandria, Virginia.
In this study, lubrication analysis of spur gears under high speed is conducted based on the elliptical contact and unified Reynolds equation system model.
The transient effect and thermal. The results and analysis suggest that gear module, pressure angle, and lubricant pressure-viscosity and temperature-viscosity coefficients can significantly affect the meshing losses. They should be the design parameters of interest to further improve the energy efficiency in high-performance, multistage transmission systems.
An investigation of the transient thermal analysis of spur gears. Abstract. A finite element computer program is developed for evaluating the transient behavior of surface temperature in high performance spur gears. The time dimension is implemented using two. 7 Thermal Analysis 30 Fluid Stream Analysis 30 Computational Fluid Dynamics 32 Methodology 32 CHAPTER-5 Conclusion 50 REFERENCE 51 List of figures Page No.
Spur Gear 3 Dimension Specifications 4 Space Constrain of Gear Design 6 A Pair of Gear Teeth Under Interference 7 Gear Tooth Under Load 9 There are several published models of spur gear pairs that analyze the thermal behavior of the pair like those developed by Long and Lord and Taburdagitan, which use finite element methods to predict the overall temperatures and surface temperatures.
Explicit dynamics,harmonic,transient and static structural analysis of spur gear pair - Duration: Prof. Spur Gear repair and build PT2 - Duration: Get this from a library. An investigation of the transient thermal analysis of spur gears. [Lotfi E El-Bayoumy; Lee S Akin; Dennis P Townsend; United States.
The accuracy of previously published thermal analyses of machine tools has been severely limited by imprecise thermal boundary conditions, in particular the values and distribution of heat inputs a.
A transient TEHL simulation model based on a finite element formulation and implemented in multiphysics software is applied to study the TEHL contact along the path of contact of spur gears. Results from the transient thermal analysis.
Finally, the heat flux functions obtained from the loaded tooth contact analysis have also been used to conduct a transient thermal analysis of the driven gear. For this purpose, a finite element model of the driven gear has been developed following the guidelines presented in Section 5.
Wang, et al. [6] developed a transient thermal EHL for spur gear and discussed the effect of thermal and working conditions. Based on the Dowson equation, Xu and Yang [7] investigated the minimum.
Transient thermal analysis on the gear was implemented utilizing the steady-state thermal analysis to obtain the transient temperature field of the locomotive traction gear.
in spur gears. 2) To generate the profile of spur gear teeth and to predict the effect of gear bending using a three dimensional model and compare the results with those of the Lewis equation. 3) To compare the accuracy of results obtained is ANSYS by varying mesh density.
finite element of fea analysis. Finite Element Analysis. Transient Analysis of spur gear pair by Prof.P P Kulkarni Spur gear fatigue analysis in Ansys Workbench Transient Thermal Analysis in ANSYS - Duration.in spur gears M.C. Keller, C. Kromer, L. Cordes, C. Schwitzke and H.-J.
Bauer the investigation of the oil-jet gear interaction by means of computational fluid dynamics (CFD) has come into focus lately. allowing a detailed transient and spatially resolved flow analysis.
Thus, not only the impingement depth, but also the temporal and.
