“Comparison and Implementation of a Rigid and a Flexible Multibody Planetary Gearbox Model”

Authors: Martin Felix Jørgensen, Niels Leergaard Pedersen and Jens Nørkær Sørensen,
Affiliation: Technical University of Denmark
Reference: 2014, Vol 35, No 2, pp. 59-77.

Keywords: multibody, gearbox, teeth, matlab

Abstract: We propose algorithms for developing (1) a rigid (constrained) and (2) a flexible planetary gearbox model. The two methods are compared against each other and advantages/disadvantages of each method are discussed. The rigid model (1) has gear tooth reaction forces expressed by Lagrange multipliers. The flexible approach (2) is being compared with the gear tooth forces from the rigid approach, first without damping and second the influence of damping is examined. Variable stiffness as a function of base circle arc length is implemented in the flexible approach such that it handles the realistic switch between one and two gear teeth in mesh. The final results are from modelling the planetary gearbox in a 500 kW wind turbine which we also described in Jørgensen et.al (2013).

PDF PDF (1042 Kb)        DOI: 10.4173/mic.2014.2.1

DOI forward links to this article:
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  title={{Comparison and Implementation of a Rigid and a Flexible Multibody Planetary Gearbox Model}},
  author={Jørgensen, Martin Felix and Pedersen, Niels Leergaard and Sørensen, Jens Nørkær},
  journal={Modeling, Identification and Control},
  publisher={Norwegian Society of Automatic Control}