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OPTIMIZATION OF PROFILE MODIFICATIONS WITH REGARD TO DYNAMIC TOOTH LOADS IN PLANETARY GEARS WITH FLEXIBLE RING-GEARS

Abstract : This paper deals with the optimization of tooth profile modifications in planetary gears. A dynamic model is proposed based on 3D two-node gear elements connected to a deformable ring-gear discretized into beam elements. Symmetric tip relief on external and internal gear meshes are introduced as normal deviations along the lines of contact superimposed on a stiffness distribution aimed at simulating position- and time-varying mesh stiffness functions. The equations of motion are solved by the combination of a Newmark’s time-step integration scheme and a contact algorithm to account for possible partial or total contact losses. Symmetric linear profile modifications are then optimized by using a genetic algorithm with the objective of minimizing dynamic tooth loads over a speed range. Finally, the interest of the corresponding optimum profile modifications with regard to speed and torque variations is analyzed.
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https://hal.archives-ouvertes.fr/hal-01271263
Contributor : Jérôme Bruyère <>
Submitted on : Monday, February 8, 2016 - 10:10:27 PM
Last modification on : Wednesday, July 8, 2020 - 12:42:36 PM

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  • HAL Id : hal-01271263, version 1

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Chapron Matthieu, Samuel Becquerelle, Philippe Velex, Jérôme Bruyère. OPTIMIZATION OF PROFILE MODIFICATIONS WITH REGARD TO DYNAMIC TOOTH LOADS IN PLANETARY GEARS WITH FLEXIBLE RING-GEARS. International Design Engineering Technical Conferences & Computers and Information in Engineering Conference, Aug 2015, Boston, United States. ⟨hal-01271263⟩

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