Theory and Experiments of a Rolling-ball Mechanism for Horizontal Vibration Isolation

DOI

10.2991/jimet-15.2015.158How to use a DOI?

Keywords

rolling-ball; vibration isolation; dynamic equation; natural frequency

Abstract

It’s significant to isolate micro-vibration interference from ground to precision instruments, so lots of scholars have paid attention to study vibration isolation mechanisms and got a fruitful outcome. The most important characteristics of a passive vertical vibration isolator are natural frequency and payload capacity while horizontal vibration isolator only concerns the former. So the performance of a passive vibration isolator in low input frequencies is considerably improved by reducing its natural frequency. This paper studied a rolling-ball mechanism that the ball rolls relative to two ball sockets with unequal radii. When the motion was assumed as slight movement, according to relational geometric relationship, the Lagrange dynamics equation of rolling angle as generalized coordinate was established. The horizontal natural frequency has been also obtained. Then the simulation analysis of influences of various parameters on natural frequency was studied. Finally, low natural frequency has been realized in the experiments which confirmed its validity.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Download article (PDF)

TY  - CONF
AU  - Gaofeng Guan
AU  - Qiang Yu
AU  - Fei Shen
PY  - 2015/12
DA  - 2015/12
TI  - Theory and Experiments of a Rolling-ball Mechanism for Horizontal Vibration Isolation
BT  - Proceedings of the 2015 Joint International Mechanical, Electronic and Information Technology Conference
PB  - Atlantis Press
SP  - 846
EP  - 852
SN  - 2352-538X
UR  - https://doi.org/10.2991/jimet-15.2015.158
DO  - 10.2991/jimet-15.2015.158
ID  - Guan2015/12
ER  -