Here in, we report the contact stress analysis of stainless steel spur gears by theoretical method using hertz equations and by finite element analysis using fea software ansys 15. Three dimensional models in this section the tooth root stresses and the tooth deflection of one tooth of a spur gear is calculated using an ansys model. Pankaj kumar jena in partial fulfillment of the requirements for the award of bachelor of technology in mechanical engineering at the national institute of technology, rourkela deemed university is an authentic work carried out by him. Analysis of spur gear box using software tool ansys. Gear analysis can be performed using analytical methods which required a number of assumptions and simplifications which aim at getting the maximum stress values only but gear analyses are multidisciplinary including calculations related to the tooth stresses and to failures like wear. Gears are mainly type like spur gears, helical gears, double helical gears, bevel gears. Due to globalization industries are facing competition. Can anyone give me any tutorial which can teach me, how to do analysis of gear in ansys 11. Biomedical researchers at the university of alberta have relied on ansys to manage risk, improve insight and accelerate product development in biomedicine. It is conceivable that gears will prevail as the best method for transmitting power.
This model is then imported to an analysis software ansys for carrying out the static analysis. Bending stress, contact stress, gear analysis using, ansys work bench, static load. Stress analysis has been a key area of research to minimize failure and. A finite element approach to bending, contact and fatigue. Then nr method is used to get the statics solution by. Contact stress analysis of spur gear for different materials. Various forces acting on the gear has been calculated. And the bending stresses in the tooth root are examined by using 3d fem model.
Stress analysis spur gear design by using ansys workbench pradeep kumar singh, manwendra gautam, gangasagar, shyam bihari lal. At first, a spur gear with perfect involute is modeled using a 3d cad software. Index terms bending stress, contact stress, gear analysis using ansys work bench, static load. The computeraided design cad files and all associated content posted to this website are created, uploaded, managed and owned by third party users. To carry a static analysis using ansys workbench for analyzing the load effect on the shaft. Working directory the directory in which all files will be stored. The finite element method fem was comparatively an easy and accurate technique for analysing the nonlinear gear contact stresses. Karthik, finite element analysis of spur gear set 2012. There has been a great deal of research on gear analysis, and a large body of literature on gear modeling has been published. It has a wide range of applications starting from wrist watch to heavy industries due to its high degree of reliability.
Modeling of worm wheel using suitable software using gear parameters. The bending stress equation by using lewis bending. Design and static structural analysis of bevel gear. Pdf frictional contact stress analysis of spur gear by. The advantage of using the fem methodology is that unlimited number of stiffeners can be added. Static structural analysis of spur gear in ansys workbench. The gear stress analysis, the transmission errors, the prediction of gear dynamic loads, gear noise, and the optimal design for gear sets are always major concerns in gear design. By way of ansys,the gear model is transformed to the finite element model consisting of nodes and elements. The book introduces the principles of the finite element method, presents an overview of ansys technologies, then covers key application areas in detail. The concrete design principles are introduced as well.
Configuration of the engine to which the crankshaft belongs, fazin h. Design, modelling, helical, herringbone gear, solid works, ansys, static, modal and fatigue analysis. Modeling and finite element analysis of spur gear semantic scholar. There are more detailed results for various numbers of teeth of helical gear. To perform your own fea, get the accurate 3d model. In this paper using ansys work bench software, bending stress, contact stress and static load on the tooth of spur gear drive is found. International journal of innovative and emerging research.
Here the theoretical maximum contact stress is calculated by hertz equation. In this project, the spur gear is modeled in solidworks and imported to ansys for static structural analysis and modal analysis. The results are then compared with the help of graphs. Contact stress analysis of spur gear for different. Based on the obtained results, they came to the conclusion that the hardness of the gear. Free vibration analysis procedure training manual the free vibration analysis procedure is very similar to performing a linear static analysis, so not all steps will be covered in detail. Design of a sintered spur gear by using proe modelling. We will load igs file of the assembly that we previously created. For the analysis, steel and grey cast iron are used as the materials of spur gear. Hydraulic command of a landing gear mechanical side. The vibration signature analysis using a joint timefrequency procedure, the wignerville distribution wvd, seems.
Extensive research has been carried out for reduction of root stress and for that attention. The finite element analysis was carried out using ansys 15. Bending stress, contact stress, gear analysis using, ansys work bench, static load introduction due to globalization industries are facing competition. But, it is one of the most important machine elements in mechanical power transmission system. Graphics device set to 3d if you have a 3d graphics device card. Pradeep kumar singh, manwendra gautam, gangasagar, shyam bihari lal. Finite element analysis of gearbox casing using software tool ansys and fft analyze m. The design process of the vehicle is iterative and is based on various engineering and reverse engineering processes depending upon the availability, cost and other such factors. Static analysis bending stress on gear tooth profile by variation of gear. Also the finite element analysis of spur gear is done to determine the maximum contact stress by ansys 14. Using ansys workbench simulationfunctionality provides many tools to aid users in solving geometric instability problems, ranging from linear eigenvalue buckling to nonlinear, postbuckling analyses. Finite element analysis of worm gear based on ansys.
How to set up a gear fea analysis in ansys using joints and remote displacements duration. Contact stress analysis in a spur gear assembly 3d cad. International journal of mechanical and production engineering, issn. Eigenvalue buckling analysis is a good approximation technique that, although less precise than nonlinear buckling analysis, is a. Also how to do finite element analysis in ansys 11 and catia v5 r20. Modal analysis and random vibrations using psd on a pcb. Finite element analysis of gearbox casing using software. October 12, 2011 agenda system level analysis using simplorer. Design of a sintered spur gear by using proe modelling and. Static analysis bending stress on gear tooth profile by. Design, modelling and analysis of herringbone gear using ansys. The conventional method of calculating gear contact stress using hertzs theory for verification by 2d fem analyzer using. For this purpose the modeled gear in proengineer is exported to ansys as an iges file and then an automatic mesh is generated. This paper represent contact stress analysis of steel gear and composite gear using hertz equation and by finite element analysis using ansys 16.
Extensive research has been carried out for reduction of root stress and for that attention has taken to the tooth fillet, the location where the fracture initiates 2. Based on the obtained results, they came to the conclusion that the hardness of the gear tooth profile can be improved to resist pitting failure. Analysis of a gear train using finite element modelling. Finite element analysis of a spur gear tooth using ansys and stress reduction by stress relief hole is done in paper 15. Contact stress and shear stress analysis of spur gear. Figure 2 and 3 shows the meshed threedimensional model. Finite element analysis of worm gear based on ansys workbench. Finally the comparisons for stress is carried out for both the standard sintered spur gear and profile corrected sintered spur gear. Smart size is used the number of elements near the roots of the teeth are automatically are much greater than in other places. Gearing is a standout amongst the most discriminating segments in a mechanical force transmission framework, and in most modern rotating machinery. Talk with a gear design specialist or read a lot more about gear design, and not the basic information, but references that talk about the manufacturing details. Abstract a gear is a rotating machine part having cut tooth, which mesh with another toothed part in order to transmit torque. Contact stress values comparison for different modules in spur gear.
Fem enables to find critical location and quantitative analysis of the stress distribution and deformed shapes under the loads to carry out their modal analysis i. Volume 1, july20 structural analysis of landing strut. Stress analysis spur gear design by using ansys workbench. During the transmission of torque of 15000 lbin or 1694. Design, modelling and analysis of herringbone gear using. Patel college of engineering, shahada maharashtra s. Starting ansys launcher contd lautomatically brings up the gui graphical user interface when ansys is started in interactive mode. Modeling and analysis of the crankshaft using ansys software. Patel college of engineering, shahada maharashtra h.
Engineering analysis with ansys software 2nd edition. This paper is the result of the analysis carried out by using ansys 14. Here we will give moment to one of the gear and will analyse the effect of the stress and strains produced at the mating region of pair of gears. Also experimental stresses are calculated using photostress. Contact stress analysis of spur gear ijert journal.
Based on analyses result, the model was modified and retested and a final design was frozen. In this study, maximum contact stress is determined. The spur gears are sketched, modeled and assembled in ansys. What are the effect of forces acting at the contact point of the mating spur gears. Ansys procedure the entire analysis is done on the single gear tooth in ansys 14. Ft and ut are both assumed to be harmonic in nature, i. The complete, general form of the equation is solved. Analysis of spur gear box using software tool ansys k. Abstract a gear is a rotating machine part having cut tooth, which meshwith another toothed part in order to transmit torque. To get accurate gear tooth geometry, you have to construct all the detailed curves in the profile of the gear. Our customers want to buy stateoftheart turbines that have proven. Finite element analysis of gearbox casing using software tool.
Finite element analysis of worm gear based on ansys workbench hui zheng a, yilun han b, chao sun c, xuelong yuan d college of transportation, shandong university of science and technology, qingdao 266590, china. Analyzing random vibration fatigue powerful ansys workbench tools help calculate the damage of vibrations that lack straightforward cyclic repetition. Starting ansys launcher contd lpressing the interactive button on the launcher brings up a dialog box containing startup options, e. A pair of bevel gear while transmitting the power generally subjected to two types of failure.
From the deformation pattern of steel and grey cast iron, it. Engineering analysis with ansys software, second edition, provides a comprehensive introduction to fundamental areas of engineering analysis needed for research or commercial engineering projects. The finite element analysis is the effective as well as convenient method to evaluate the stresses of the worm wheel. The spur gear is sketched and modelled in ansys design modeller and the contact. Contact stress and shear stress analysis of spur gear using. Design and structural analysis of high speed helical gear. Analysis of hcr spur gear drive using finite element analysis submitted by mr. Further, an elliptical contact area formed when two threedimensional. Kumar, technical support engineer, ansys india determining the fatigue life of parts under periodic, sinusoidal vibration is a fairly straightforward process in which. Contact stress analysis of composite spur gear using photo. Contact stress analysis of spur gear for different materials using.
Patel college of engineering, shahada maharashtra abstract gear box are used in almost all the machineries where the power is to be transmitted. Pankaj kumar jena in partial fulfillment of the requirements for the award of bachelor of. N karthik bommisetty abstract a finite element procedure has been developed in this work to determine the load distribution factor, km, of the agma formula for a set of spur gear. Pdf analysis of surface contact stress for a spur gear of material. Stress analysis on spur gears using ansys workbench 16. Jul 20, 2018 how to set up a gear fea analysis in ansys using joints and remote displacements duration. Discretization of continuum draw gear tooth in catia of given dimensions divide the gear tooth in 25 sections calculate mean thickness for each section. The bending failure due to bending stresses and pitting failure due to contact stresses. The method of precise modeling of spur gear is illustrated by an example. A constructed pair of gears is fixed normatively to give birth to gear model. For that purpose we use the following procedure, 3.
The advantage of using the fem methodology is that unlimited number of stiffeners can be added to the model, which can be placed at any direction inside the plate element 4. This is analysis of simple gear train spur gear,in which we are going to check stress as well as factor of safety,deformation. Jun 27, 2017 this is analysis of simple gear train spur gear,in which we are going to check stress as well as factor of safety,deformation. The present work is an attempt to find root bending stress distribution, maximum allowable contact stress and total deformation of a stainless steel spur gear tooth. It was found that the results from both hertz equation and finite element analysis are comparable. Gear is one of the most important critical components in a mechanical power transmission system, and most industrial dynamic machinery. Analysis on contact stress of spur gear based on ansys. An attempt in this paper, the crankshaft is modelled by using catiav5 software, and static analysis is done by using ansys workbench software. The analysis is done using finite element method and the simulation is done using ansys.
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