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http://dx.doi.org/10.5050/KSNVE.2012.22.3.253

Dynamic Analysis of a High-speed Wheel Moving on an Elastic Beam Having Gap with the Consideration of Hertz Contact  

Lee, Ki-Su (전북대학교 기계공학과)
Kim, Seok-Seung (전북대학교 대학원 기계공학과)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.22, no.3, 2012 , pp. 253-263 More about this Journal
Abstract
With the local Hertz deformation on the contact point, the dynamic contact between a high-speed wheel and an elastic beam having a gap is numerically analyzed by solving the whole equations of motion of the wheel and the beam subjected to the contact condition. For the stability of the time integration the velocity and acceleration constraints as well as the displacement constraint are imposed on the contact point. Especially the acceleration contact condition on the gap is formulated, and it is demonstrated that the contact force variation computed by the velocity contact constraint or by the acceleration contact constraint agrees well with that computed by the displacement contact constraint. The numerical examples show that, when the wheel passes on the gap, the solution is governed by the stiffness of the local Hertzian deformation.
Keywords
Contact; Gap; Elastic Beam; Numerical Analysis; Multibody Dynamics;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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