This paper proposes a procedure for obtaining the load distribution in a four contact-point slewing bearing considering the effect of the structure’s elasticity. The uneven stiffness of the rings and the supporting structures creates a variation with respect to the results obtained with a rigid model. It is necessary to evaluate the effect of the elasticity on the increase in the contact forces in order to be able to design the slewing bearing and the structures involved in the connection. Depending on the shape of the structures, the contact force value obtained on the most loaded rolling element is different. The evaluation of this maximum force at extreme loads is essential to design the structures joined to the bearing rings. The new elastic model presented in this paper is highly nonlinear so iterative loops are needed in order to obtain a satisfactory solution. At the same time a finite element model (FEM) has been created for the global model, having also represented the rolling elements and their contact with the raceways. The results obtained using the FEM have been correlated with the results of the new procedure.
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February 2010
Research Papers
Design of Four Contact-Point Slewing Bearing With a New Load Distribution Procedure to Account for Structural Stiffness
Mireia Olave,
Mireia Olave
Department of Mechanical Engineering,
IKERLAN Technology Research Centre
, 20500 Arrasate, Gipuzkoa, Spain
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Xabier Sagartzazu,
Xabier Sagartzazu
Department of Mechanical Engineering,
IKERLAN Technology Research Centre
, 20500 Arrasate, Gipuzkoa, Spain
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Jorge Damian,
Jorge Damian
LAULAGUN
, E-20212 Olaberria, Gipuzkoa, Spain
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Alberto Serna
Alberto Serna
Mercedes-Benz Technology Center,
Daimier AG
, 71063 Sindelfingen, Germany
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Mireia Olave
Department of Mechanical Engineering,
IKERLAN Technology Research Centre
, 20500 Arrasate, Gipuzkoa, Spain
Xabier Sagartzazu
Department of Mechanical Engineering,
IKERLAN Technology Research Centre
, 20500 Arrasate, Gipuzkoa, Spain
Jorge Damian
LAULAGUN
, E-20212 Olaberria, Gipuzkoa, Spain
Alberto Serna
Mercedes-Benz Technology Center,
Daimier AG
, 71063 Sindelfingen, GermanyJ. Mech. Des. Feb 2010, 132(2): 021006 (10 pages)
Published Online: January 26, 2010
Article history
Received:
June 15, 2009
Revised:
December 9, 2009
Online:
January 26, 2010
Published:
January 26, 2010
Citation
Olave, M., Sagartzazu, X., Damian, J., and Serna, A. (January 26, 2010). "Design of Four Contact-Point Slewing Bearing With a New Load Distribution Procedure to Account for Structural Stiffness." ASME. J. Mech. Des. February 2010; 132(2): 021006. https://doi.org/10.1115/1.4000834
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