Determination of transmission error in spur gear by numerical approach

Bartosova, Daniela; Otipka, Václav; Řehák, Kamil

doi:10.21595/vp.2018.20239

Cited by 7 publications

(2 citation statements)

References 5 publications

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“…The work presented here shows the use of a CAD and FEM software integration approach developed by [1] for the calculation of mesh stiffness to find the TE and mesh stiffness to analyse the effects of various gear parameters, tooth tip radius and pitch error on TE and mesh stiffness. Pitch error is the difference in theoretically correct pitch and Using FEA software, Bartosova et al [2] parametrically modelled spur gear to assess the effects of load fluctuation, centre distance, and tooth variations on static transmission error (STE). By modifying the parameters, parametric modelling allows for the creation of a variety of gear models.…”

Section: Introductionmentioning

confidence: 99%

Determination of Transmission Error and Mesh Stiffness in Spur Gear Pair using CAD-FEM Integration Approach

Karma,

Maheshwari

2023

IOP Conf. Ser.: Mater. Sci. Eng.

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Unwanted sound and sensations are key sources of excitations in gear drives. They developed because of Transmission Error (TE). TE is a consequence of geometric or engineering flaws like profile/pitch error etc. or distortions like spall, indentation, crack, rubs etc. arising due to the diverse load conditions. These distortions and various gear parameters like number of teeth, contact ratio, module, pressure angle etc. have huge effects on TE and produce changes in mesh stiffness. This demands to investigate the effects of these parameters on TE and mesh stiffness for the avoidance or early finding of causes of malfunctions in the transmission system using computer models using CAD-CAE (FEM) software. In this paper the TE and mesh stiffness is determined using CAD-FEM integration approach and the impact of some of the gear parameters, tooth tip radius and geometric flaw-pitch error is analyzed. The modeling of spur gears & assembly to form gear pair is done in CAD software SOLIDWORKS. The gear pair formed is then introduced into FEM software Ansys for simulation using transient structural analysis method to find angular deformations and then TE and mesh stiffness. Several charts are drawn amongst rotation angle of one of the gears (driver gear) and TE/mesh stiffness for different gear parameters. The work demonstrated the use of CAD-CAE integration approach and point out that all these parameters affect TE and mesh stiffness in a meaningful way.

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Section: Introductionmentioning

confidence: 99%

Determination of Transmission Error and Mesh Stiffness in Spur Gear Pair using CAD-FEM Integration Approach

Karma,

Maheshwari

2023

IOP Conf. Ser.: Mater. Sci. Eng.

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“…Many authors dealt with the transmission error, or the time-varying mesh stiffness (TVMS) which is associated with it, by considering only sole gears or teeth. Bartošová et al [12] determined the static transmission error (STE) of spur gears using the finite element method (FEM). Among other things, they investigated the influence of loading torque, center distance and micro-geometric modifications.…”

Section: Introductionmentioning

confidence: 99%

Static transmission error measurement of various gear-shaft systems by finite element analysis

Czakó,

Řehák,

Prokop

et al. 2023

J. meas. eng.

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Transmission error (TE) is a significant parameter related to gears vibration widely investigated by many authors using different approaches. However, in previous studies, spur and helical gears were mainly examined. There is a lack of studies addressed to double helical and herringbone gears and a comparison among several types of gearing with parallel axes. In this paper, spur, helical, double helical, and herringbone gears are analyzed in terms of static transmission error (STE), contact pressure and tooth root stress. Static contact analyses were conducted using the finite element method (FEM) which is often considered a tool for validating other methods and approaches. Moreover, three variants of boundary conditions of each gear type are introduced, including flexible shafts and the effect of a tip relief modification at sole gears, without shafts, was analyzed. In addition, a concept of a compact test rig intended for STE measurements at low loads was presented. The results have shown, among other things, significant influence of the shaft stiffness and boundary conditions on meshing characteristics.

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