| The effect of bending loads on the dynamic behaviors of a rolling guide
James Shih-Shyn Wu*, Jyh-Cheng Chang2 Gent-An Tsai, Ching-Yuan Lin and Feng-Ming Ou
The Journal of Mechanical Science and Technology, vol. 26, no. 3, pp.671-680, 2012
Abstract : Dynamic behaviors of ball-type contact surfaces under unbalanced bending loads are studied using point-to-point analysis, threedimensional
finite element simulation based on the Hertz Contact Theory, and a modal test. Results derived from these models are very
similar but the Finite Element Model provides the best results since it allows for more elements of study, such as the steel ball, carriage,
rail etc. In the study, results also show that frequencies vary slightly, but there is an obvious change in shapes. Therefore, the contact
stiffness in simulations must be properly selected with the conclusion that different external loadings may affect the dynamic characteristics
of such structures significantly.
Keyword : Linear guide; Hertz contact theory; Contact stiffness |
