Effect of Backlash on Transmission Error and Time Varying Mesh Stiffness

Ambaye, Getachew A.; Lemu, Hirpa G.

doi:10.1007/978-981-33-6318-2_3

Cited by 7 publications

(4 citation statements)

References 14 publications

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“…In the current work TE is calculated at the base circle. The mesh stiffness is then represented in torsional and linear way as given by ( 3) and (4).…”

Section: Determination Of Te and Mesh Stiffness Using Ansys Workbenchmentioning

confidence: 99%

“…where θgear1 & θgear2 are the angle of rotations, Rbgear1 & Rbgear2 are base circle radius of driver gear 1 & driven gear 2, respectively. T represent resistive or braking torque and KTorsional and KLinear represent torsional mesh stiffness (Nm/radian) & time varying mesh stiffness (N/m) respectively [1,[3][4]. The most convenient representation of mesh stiffness in literature is the time varying mesh stiffness (TVMS) representation, so in this work it is used for analysis.…”

Section: Determination Of Te and Mesh Stiffness Using Ansys Workbenchmentioning

confidence: 99%

“…Here, tooth and gear body flexibility, as well as tooth profile variations, are considered. The STE, dynamic transmission error (DTE), and time-varying mesh stiffness (TVMS) of spur gears with varied backlash at different coefficients of friction are predicted by Ambaye et al [4] using ABAQUS software using a plane strain analysis. For spur gears with profile change under non nominal or variable load circumstances, a simple analytical model for meshing stiffness, load sharing ratio, and TE is described by Pleguezuelos et al [5].…”

Section: Introductionmentioning

confidence: 99%

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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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“…In the current work TE is calculated at the base circle. The mesh stiffness is then represented in torsional and linear way as given by ( 3) and (4).…”

Section: Determination Of Te and Mesh Stiffness Using Ansys Workbenchmentioning

confidence: 99%

Section: Determination Of Te and Mesh Stiffness Using Ansys Workbenchmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

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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“…This error is unavoidable as the time passes by. Ambaye et al [21] uses a Gear Trax software to model a gear with backlash with different degrees. In his experiments he uses plane strain analysis and finite element analysis to find mesh convergence for different contact pressure and stress.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Effects of Change of Gear Parameter Module on Transmission Error in Spur Gear using Interference Volume Method

Karma

Maheshwari

Somani³

2022

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

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Gear drives are the most used elements in power transmission systems. Any defect in the gear of these drives leads to noise and vibrations, which affect power/torque transmission. Transmission Error (TE) is one of the critical causes that arises due to the tooth geometry error, cracks in gear, profile error etc. Our work demonstrates, the consequences occurring due to the changes in gear parameter module on TE for spur gear pair of 1:1 gear ratio with pitch error, using the interference volume method. The spur gear without pitch error and with pitch error having the involute profile of standard tooth dimension system and stub tooth dimension system are modelled and assembled in CAD software SOLIDWORKS. The interference volume values obtained from the gear pairs are recorded for one mesh cycle. Various graphs plotted between the angle of rotation and interference volume values for one mesh cycle. It is found from the analysis that as the module and pitch error increase TE also increases. The effect of variation of module and pitch error is more in the standard tooth dimension system than the stub tooth dimension system.

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