Geometric contact pattern estimation for gear drives

Bracci, Andrea; Gabiccini, Marco; Artoni, Alessio; Guiggiani, Massimo

doi:10.1016/j.cma.2009.01.009

Cited by 27 publications

(10 citation statements)

References 13 publications

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“…The latter is defined according to the ANSI/ AGMA 2005-D03 standard. Artoni refers to the loaded meshing model developed by Bracci [14]. The optimization variables are the coefficients of the quartic function which define the «ease-off».…”

Section: Gear Topography Optimizationmentioning

confidence: 99%

A new methodology to optimize spiral bevel gear topography

Mermoz¹,

Astoul²,

Sartor

et al. 2013

CIRP Annals

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International audienceThis paper aims to present the new method developed to generate optimized spiral bevel gear surfaces. Thanks to a complex non linear finite element model, the geometrical gear meshing positions under operational loads are first precisely computed. These meshing positions are then used as inputs of a calculation process that seeks to define the best tooth surface topography. So far, this activity was based on sensitivity studies conducted directly by the designer, which led to repeat calculations whose progress was difficult to control.EUROCOPTER uses now optimization algorithms to compute automatically the surfaces of the tooth contact flanks. This approach leads to higher performances of the gear while reducing the development time. This paper describes the new process implemented to design the tooth shape, and illustrates its interest through an example

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Section: Gear Topography Optimizationmentioning

confidence: 99%

A new methodology to optimize spiral bevel gear topography

Mermoz¹,

Astoul²,

Sartor

et al. 2013

CIRP Annals

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show abstract

“…Then, B-spline interpolation becomes an accurate tooth flank topography optimization. Artoni et al 16 and Gabiccini et al 17 applied a reconstructed tooth flank to get a data-driven optimization of loaded contact pattern. Where, an explicit expression of tooth flank was proposed in a simple form of the parametric formulations.…”

Section: Introductionmentioning

confidence: 99%

Adaptive data-driven modular control approach to computer aided process planning for manufacturing spiral bevel and hypoid gears

Rong

Ding

Tang

2020

Proceedings of the Institution of Mechanical Engineers, Part B:

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Machine setting modification has been an increasingly important access to the accurate flank manufacturing geometric accuracy control for spiral bevel and hypoid gears. More recently, machine setting driven integration of the theoretical design and the actual gear manufacturing is gaining more and more attention. In this paper, the traditional machine setting modification is extended to the case when higher-order component of the prescribed ease-off flank topography is investigated in form of high-order polynomial expression. Moreover, the actual gear manufacturing and general measurement are integrated into an adaptive data-driven high-order machine setting modification. In particular, this modification method is used to perform adaptive modular control for computer aided process planning (CAPP). Here, a data-driven operation and optimization is developed for adaptive high-order modification. It mainly includes: (i) Polynomial fitting and its optimization by using overall interpolation based on energy method, (ii) Data-driven ease-off flank parametrization based on the fastest descent Newton iteration method, (iii) adaptive control strategy by considering the sensitivity analysis, and (iv) Levenberg-Marquardt (L-M) based approximation for high-order machine setting modification. Given numerical test can verify the proposed method.

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“…The contact pattern and contact path should be considered to avoid any edge contact and corner contact for spiral bevel and hypoid gears. Many works have been done for this purpose [3][4][5]. Local synthesis was used by Litvin and Zhang [6,7] for producing non-conjugate point contact gear pairs.…”

Section: Introductionmentioning

confidence: 99%

Curvature synthesis for face-milling spiral bevel gears with high-order transmission errors

Yang

Wei

Hua

et al. 2019

J Braz. Soc. Mech. Sci. Eng.

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A modification methodology based on curvature synthesis for face-milling spiral bevel gears is proposed in this paper. This scheme includes the calculation of machine-tool settings and determination of the instantaneous modified roll ratio based on different predesigned high-order transmission error (TE) curves. Firstly, the principal curvatures and directions of ease-off pinion surface at mean contact point are carried out based on the fully conjugate pinion surface. The machine-tool settings of the pinion can be determined to meet with the meshing conditions between the cradle and the pinion. Then, compared with the parabolic TE, the amplitudes of loaded TE under a series of pinion torque for fourth-order and sixth-order TE are decreased based on the results of loaded tooth contact analysis. Finally, an example is provided to verify the proposed method. The parabolic, fourth-order and sixth-order transmission error curves are used to illustrate how to obtain the modified roll curve.

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Geometric contact pattern estimation for gear drives

Cited by 27 publications

References 13 publications

A new methodology to optimize spiral bevel gear topography

A new methodology to optimize spiral bevel gear topography

Adaptive data-driven modular control approach to computer aided process planning for manufacturing spiral bevel and hypoid gears

Curvature synthesis for face-milling spiral bevel gears with high-order transmission errors

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