Session: MR-07-04

Paper Number: 143022

143022 - Parametric Analysis and Design of a Triple-Magnet System for Magnetic Gravity Compensation in Linear Motion 

This paper introduces, analyzes, and designs a magnetic gravity compensation mechanism utilizing three aligned, parallel cylindrical magnets for balancing linear motion against gravity. Unlike traditional magnet-based designs that employ numerous permanent magnets, this triple-magnet approach offers structural simplicity and high adjustability, suggesting a practical solution concept for linear-type gravity compensation. First, to determine the theoretical magnetic forces, an approach based on Monte Carlo integration is described. Several dimensional factors affecting the interactive forces between the three magnets, such as the magnetic polarization as well as the magnet radius and thickness are thoroughly investigated. It was found that increasing the thicknesses of the magnets will enhance the synthesized magnetic force without affecting the quality of gravity compensation. On the other hand, enlarging the diameters of the magnets will improve the quality of gravity compensation, but there is a bound of maximum diameters to improve the quality of gravity compensation. Accordingly, a procedure for gravity compensation design of the triple-magnet mechanism is developed. The design philosophy is illustrated through two examples, in which the design results were validated by finite-element simulation. As a result, the presented design concept holds great potential for applications, offering a reliable and efficient solution for magnetic gravity compensation in translational motion.

Presenting Author: Chin-Hsing Kuo University of Wollongong

Presenting Author Biography: I am a Senior Lecturer in the School of Mechanical, Materials, Mechatronic and Biomedical Engineering at the University of Wollongong (UOW).

Authors:

Shuojie Li Taiyuan University of Technology
Xiangxian Zeng University of Wollongong
Chin-Hsing Kuo University of Wollongong