The primary objective of this study is to validate a specific finite element code aimed at simulating dynamic tooth loading in geared rotor systems. Experiments have been conducted on a high-precision single stage spur and helical gear reducer with flexible shafts mounted on hydrostatic or hydrodynamic bearings. The numerical model is based on classical elements (shaft, lumped stiffnesses, …) and on a gear element which accounts for non-linear time-varying mesh stiffness, gear errors and tooth shape modifications. External and parametric excitations are derived from the instantaneous contact conditions between the mating flanks by using an iterative contact algorithm inserted in a time-step integration scheme. First, experimental and numerical results at low speeds are compared and confirmed that the proposed tooth mesh interface model is valid. Comparisons were then extended to dynamic fillet stresses on both spur and helical gears between 50–6000 rpm on pinion shaft. Despite a localized problem in the case of spur gears with one particular bearing arrangement, the broad agreement between the experimental and numerical response curves demonstrated that the model is representative of the dynamic behavior of geared systems.
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June 2002
Technical Papers
Static and Dynamic Tooth Loading in Spur and Helical Geared Systems-Experiments and Model Validation
S. Baud,
S. Baud
Laboratoire de Me´canique des Contacts, UMR CNRS 5514, INSA Lyon, Ba^t. 113 20, Avenue Albert Einstein 69 621 VILLEURBANNE Cedex France
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P. Velex, Mem. ASME
P. Velex, Mem. ASME
Laboratoire de Me´canique des Contacts, UMR CNRS 5514, INSA Lyon, Ba^t. 113 20, Avenue Albert Einstein 69 621 VILLEURBANNE Cedex France
Search for other works by this author on:
S. Baud
Laboratoire de Me´canique des Contacts, UMR CNRS 5514, INSA Lyon, Ba^t. 113 20, Avenue Albert Einstein 69 621 VILLEURBANNE Cedex France
P. Velex, Mem. ASME
Laboratoire de Me´canique des Contacts, UMR CNRS 5514, INSA Lyon, Ba^t. 113 20, Avenue Albert Einstein 69 621 VILLEURBANNE Cedex France
Contributed by the Power Transmission and Gearing Committee for publication in the JOURNAL OF MECHANICAL DESIGN. Manuscript received Jan. 2000. Associate Editor: R. F. Handschuh.
J. Mech. Des. Jun 2002, 124(2): 334-346 (13 pages)
Published Online: May 16, 2002
Article history
Received:
January 1, 2000
Online:
May 16, 2002
Citation
Baud , S., and Velex, P. (May 16, 2002). "Static and Dynamic Tooth Loading in Spur and Helical Geared Systems-Experiments and Model Validation ." ASME. J. Mech. Des. June 2002; 124(2): 334–346. https://doi.org/10.1115/1.1462044
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