The Experts below are selected from a list of 2616 Experts worldwide ranked by ideXlab platform
L Skoczylas - One of the best experts on this subject based on the ideXlab platform.
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a comparative analysis of the geometrical surface texture of a real and virtual model of a tooth flank of a Cylindrical Gear
Journal of Materials Processing Technology, 2008Co-Authors: Jacek Michalski, L SkoczylasAbstract:The paper presents the methodology of modelling tooth flanks of Cylindrical Gears in the CAD environment. The modelling consists in a computer simulation of Gear generation. A model of tooth flanks is an envelope surface of a family of envelopes that originates from the rolling motion of a solid tool model in relation to a solid model of the Cylindrical Gear. The surface stereometry and topography of the tooth flanks, hobbed and chiselled by Fellows method, are compared to their numerical models. Metrological measurements of the real Gears were carried out using a coordinated measuring machine and a two-dimensional profilometer. A computer simulation of the Gear generation was performed in the Mechanical Desktop environment.
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Modelling the tooth flanks of hobbed Gears in the CAD environment
The International Journal of Advanced Manufacturing Technology, 2008Co-Authors: Jacek Michalski, L SkoczylasAbstract:The paper presents the computer simulation methodology of modelling tooth flanks of Cylindrical Gears. The modelling consists of a computer simulation of a Gear generation. A model of tooth flanks is an envelope curve of a family of envelopes that originate from the rolling motion of a solid tool model in relation to a solid model of the Cylindrical Gear. The surface stereometry and topography of the tooth flanks, hobbed, are compared to their numerical models. A computer simulation of the Gear generation was performed in a mechanical desktop environment.
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a comparative analysis of the geometrical surface texture of a real and virtual model of a tooth flank of a Cylindrical Gear
arXiv: Computational Engineering Finance and Science, 2006Co-Authors: Jacek Michalski, L SkoczylasAbstract:The paper presents the methodology of modelling tooth flanks of Cylindrical Gears in the Cad environment. The modelling consists in a computer simulation of Gear generation. A model of tooth flanks is an envelope curve of a family of envelopes that originate from the rolling motion of a solid tool model in relation to a solid model of the Cylindrical Gear. The surface stereometry and topography of the tooth flanks, hobbed and chiselled by Fellows method, are compared to their numerical models. Metrological measurements of the real Gears were carried out using a coordinated measuring machine and a two - and a three-dimensional profilometer. A computer simulation of the Gear generation was performed in the Mechanical Desktop environment.
Jacek Michalski - One of the best experts on this subject based on the ideXlab platform.
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Surface topography of the Cylindrical Gear tooth flanks after machining
The International Journal of Advanced Manufacturing Technology, 2008Co-Authors: Jacek MichalskiAbstract:The paper presents an analysis of three-dimensional surface topography of side and side out in tooth space flanks of Cylindrical Gear machined after hobbing and chiselling by Fellows method. The parameters and functions of surface topography as well as spectral analysis were used. Primary surface topography after extraction of involute tooth profile was analysed. It was found that contour maps of areal power spectral density and autocorrelation functions were very useful for the analysis of teeth flank surface topography. The angular plot of areal power spectral density function assures proper description of surface, background and defects directionalities. Surface texture parameter SPtr and isotropy index Spiso are useful for quantitative surface topography analysis. Good distribution functions of amplitudes and summit curvatures isolate surface roughness height and shape. It was proved using a kinematical–geometric digital model of machining simulation in 3D system, universal generalised model and experimental investigations that the roughness height and roughness spacing were smaller for the tooth point surface than for the root surface after hobbing and Fellows chiselling. Roughness height of tooth profile after machining by one-coil cutter with great axial feed and by modular Gear-sharper cutter is smaller than roughness height of tooth line. Inverse dependencies take place after hobbing by three-coil cutter with small axial feed. It was also found that flank teeth surface topography, primary profile along teeth height and teeth line along its width were quasi-periodic. In all the analysed cases, teeth flank surfaces going to the machining have higher roughness height than surfaces going out from the machining. It was probably caused by direction of chips runout; chips damage surface going into the machining. The flank tooth surfaces of a Gear made by hobbing and Fellows-chiselling method are anisotropic and strongly oriented along the helix. The orientation of the flank surfaces after hobbing is considerably lower than after Fellows chiselling.
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a comparative analysis of the geometrical surface texture of a real and virtual model of a tooth flank of a Cylindrical Gear
Journal of Materials Processing Technology, 2008Co-Authors: Jacek Michalski, L SkoczylasAbstract:The paper presents the methodology of modelling tooth flanks of Cylindrical Gears in the CAD environment. The modelling consists in a computer simulation of Gear generation. A model of tooth flanks is an envelope surface of a family of envelopes that originates from the rolling motion of a solid tool model in relation to a solid model of the Cylindrical Gear. The surface stereometry and topography of the tooth flanks, hobbed and chiselled by Fellows method, are compared to their numerical models. Metrological measurements of the real Gears were carried out using a coordinated measuring machine and a two-dimensional profilometer. A computer simulation of the Gear generation was performed in the Mechanical Desktop environment.
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Modelling the tooth flanks of hobbed Gears in the CAD environment
The International Journal of Advanced Manufacturing Technology, 2008Co-Authors: Jacek Michalski, L SkoczylasAbstract:The paper presents the computer simulation methodology of modelling tooth flanks of Cylindrical Gears. The modelling consists of a computer simulation of a Gear generation. A model of tooth flanks is an envelope curve of a family of envelopes that originate from the rolling motion of a solid tool model in relation to a solid model of the Cylindrical Gear. The surface stereometry and topography of the tooth flanks, hobbed, are compared to their numerical models. A computer simulation of the Gear generation was performed in a mechanical desktop environment.
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a comparative analysis of the geometrical surface texture of a real and virtual model of a tooth flank of a Cylindrical Gear
arXiv: Computational Engineering Finance and Science, 2006Co-Authors: Jacek Michalski, L SkoczylasAbstract:The paper presents the methodology of modelling tooth flanks of Cylindrical Gears in the Cad environment. The modelling consists in a computer simulation of Gear generation. A model of tooth flanks is an envelope curve of a family of envelopes that originate from the rolling motion of a solid tool model in relation to a solid model of the Cylindrical Gear. The surface stereometry and topography of the tooth flanks, hobbed and chiselled by Fellows method, are compared to their numerical models. Metrological measurements of the real Gears were carried out using a coordinated measuring machine and a two - and a three-dimensional profilometer. A computer simulation of the Gear generation was performed in the Mechanical Desktop environment.
Wang Guang-xin - One of the best experts on this subject based on the ideXlab platform.
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Optimization Design of Three-Stage Cylindrical Gear Reducer
Journal of Dalian Railway Institute, 2005Co-Authors: Wang Guang-xinAbstract:By using the number of small Gear teeth, normal module and first two-stage transmission ratio in every grade of Cylindrical Gear reducer as design variables, the minimum of overall Gear central distances in reducer as objective function is derermined, and an optimization design mathematical model of three-stage Cylindrical Gear reducer is devoloped. The results of the optimization are more satisfying than normal design.
Qingliang Zeng - One of the best experts on this subject based on the ideXlab platform.
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Optimization of Two-Stage Cylindrical Gear Reducer with Adaptive Boundary Constraints
Journal of Software, 2013Co-Authors: Xueyi Li, Shoubo Jiang, Qingliang ZengAbstract:An optimization mathematical model for designing two-stage Cylindrical Gear reducer is firstly constructed based upon the drive principles and design criteria of Cylindrical Gear transmission. Then some techniques for calculating the key performance parameters, such as profile factor and dynamic load coefficient, etc., and revising the corresponding boundary constraints dynamically during the optimization process are researched and implemented. Finally, dedicated interactive optimization design software is developed based on VC++/MATLAB mixed programming. Compared with the conventional optimization methods with fixed performance parameter, the proposed method can accurately calculate all the key parameters and revise the corresponding constraint functions adaptively in each iteration step. Optimization examples illustrate that the proposed Gear optimization method is more effective and reasonable.
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Research on Contact Fatigue of Cylindrical Gear
Advanced Materials Research, 2011Co-Authors: San Shuai Li, Da Qian Geng, Qingliang ZengAbstract:Based on the dynamic balance principle and contact fatigue properties of Cylindrical Gear pair, the influence factors of dynamics are researched and the meshing location for the maximum contact stress is accurately determined. Loading spectrum of contact stress is obtained by transient dynamic analysis. At the same time, the corresponding S-N curve for contact fatigue is described in a double logarithmic coordinate system. Then the finite element analysis on the contact fatigue life is carried out by ANSYS Workbench and safety factor for both Gears are obtained. It has great significance for evaluating the reliability of the Cylindrical Gear pair.
Wang Hong-xian - One of the best experts on this subject based on the ideXlab platform.
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Virtual Assembly and Motion Simulation of Cylindrical Gear Reducer Based on Solid Edge
Coal Mine Machinery, 2007Co-Authors: Wang Hong-xianAbstract:The method of using virtual assembly and motion simulation to design the Cylindrical Gear reducer in Solid Edge is introduced.It has offered a kind of new design method and implementation way for research of the Cylindrical Gear reducer.
