Dynamic Contact Emulate Analysis of Logarithmic Spiral Bevel Gear with ANSYS/LS-DYNA

Li, Qiang; Wu, Shu Qin; Yan, Hong Bo

doi:10.4028/www.scientific.net/amm.86.531

Cited by 2 publications

(2 citation statements)

References 1 publication

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“…LS-DYNA is a well-known universal explicit nonlinear dynamic analysis program, Especially suitable for solving nonlinear dynamic impact problems such as high-speed collision and impact of two-dimensional and three-dimensional nonlinear structures, [27][28][29] this section will focus on LS-DYNA's initial impact simulation of gear collision.…”

Section: Simulation Analysis Of Impact Loadmentioning

confidence: 99%

Initial impact force analysis and simulation of planetary helical gear transmission

Tian¹,

Qing²,

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part C:

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The planetary gear transmission is widely used because of its advantages such as large transmission ratio and high transmission efficiency. But at the moment of starting, there is a speed difference between driving gear and driven wheel due to the backlash between the teeth, this will easily cause the initial collision and impact force, which seriously affect the life of gear transmission, even lead to tooth surface pitting and root fracture failure, therefore, it is necessary to conduct a quantitative analysis of the initial collision. Based on the gear meshing principle and the system dynamics theory, the analytical calculation formula of initial impact force for the internal and external meshing gear pair was derived. The impact simulation analysis model of planetary helical gear transmission was established based on the finite element LS-DYNA, and the simulation analysis results were compared with the analytical calculation results, which verified the correctness of the analytical calculation model. This paper reveals the impact collision mechanism and studies the influence law of the speed and temperature on the impact force, thus laying a good theoretical foundation for the dynamic modification design of the planetary gear transmission and preventing the failure of the gear teeth from impact collision.

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Section: Simulation Analysis Of Impact Loadmentioning

confidence: 99%

Initial impact force analysis and simulation of planetary helical gear transmission

Tian¹,

Qing²,

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part C:

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show abstract

“…It can simulate various complex problems in the real world, and is especially suitable for solving nonlinear dynamic shock problems such as high-speed collisions, explosions, and metal forming of various 2D and 3D nonlinear structures. At the same time, it can solve heat transfer, fluid, and fluid-solid coupling problems [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Meshing Error of Elliptic Cylinder Gear Based on Tooth Contact Analysis

Changbin

Liu

Wei

2020

IJE

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In order to study the dynamic meshing characteristics of the elliptic cylinder gear and obtain the meshing error of the gear transmission system, the two-dimensional static contact analysis of the gear tooth surface is carried out using ANSYS software, and the key parts of the contact area of the tooth surface are determined. Then, the dynamic meshing model of the elliptic cylinder gear is established and the dynamic contact process under load is simulated by ANSYS LS-DYNA software. The distribution law of effective plastic strain, effective stress and pressure of the driving and driven wheels are obtained. On this basis, the distribution law of meshing error is obtained by calculation. The results show that the distribution of stress, strain and tooth surface pressure during tooth meshing is related to the position of the tooth on the elliptical pitch curve. The position of the tooth on the pitch curve and the load it bears has a certain influence on the meshing error. The results of this research can provide some guidance for subsequent study of transmission error of non-circular gears, gears modification and engineering applications.

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Dynamic Contact Emulate Analysis of Logarithmic Spiral Bevel Gear with ANSYS/LS-DYNA

Cited by 2 publications

References 1 publication

Initial impact force analysis and simulation of planetary helical gear transmission

Initial impact force analysis and simulation of planetary helical gear transmission

Meshing Error of Elliptic Cylinder Gear Based on Tooth Contact Analysis

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