Contact Mechanics in Cylindrical Clearance Revolute Joints

Abstract:

A comparative study concerning the dynamics of chain drives mechanisms is presented in this article. The study compares the dynamic response using the spherical contact model proposed by Lankarani and Nikravesh with a new enhanced cylindrical model developed by the authors to describe the contact phenomenon in cylindrical clearance revolute joints. In the process, the influence of contact parameters and the numerical efficiency of using different contact modeling approaches are evaluated. It is demonstrated that cylindrical contact is stiffer than spherical contact. The spherical model represents a rough approximation to evaluate the contact between cylindrical bodies since contact forces are underestimated.

• Periodical: Applied Mechanics and Materials (Volumes 365-366)
• Pages: 412-415
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.365-366.412
• Online since: August 2013
• Authors: Cândida Pereira, Jorge Ambrósio, Amilcar Ramalho
• Keywords: Clearance Joints, Contact Mechanics, Cylindrical Contact, Multibody Models

References

[1] Cândida M. Pereira, Jorge A. Ambrósio, Amílcar L. Ramalho, A methodology for the generation of planar models for multibody chain drives, Multibody Syst. Dyn. 24 (2010) 303–324.

DOI: 10.1007/s11044-010-9207-x

[2] Cândida M. Pereira, Amílcar L. Ramalho, Jorge A. Ambrósio, A Critical Overview of Internal and External Cylinder Contact Force Models, Nonlinear Dynamics. 63 (2011) 681-697.

DOI: 10.1007/s11071-010-9830-3

[3] C. Pereira, A. Ramalho, J. Ambrósio. An Enhanced Cylindrical Contact Force Model. Multibody Syst. Dyn. (submitted for publication), (2013).

[4] P. Flores, J. Ambrósio, J.P. Claro and H. Lankarani, Kinematics and Dynamics of Multibody Systems with Imperfect Joints: Models and Case Studies, in: Springer (Eds. ), Dordrecht, The Netherlands, (2008).

DOI: 10.1007/978-3-540-74361-3_2