Affiliations: [a] Department of Mechanical System Engineering, Gunma
University, Tenjincho, Kiryu, Japan | Université Laval, Canada | Tohoku University, Japan
Correspondence:
[*]
Corresponding author: Iwanori Murakami, Department of Mechanical
System Engineering, Gunma University, 1-5-1 Tenjincho, Kiryu 376 8515, Japan.
Tel.: +81 277 30 1564; E-mail: murakami@gunma-u.ac.jp
Abstract: Springs are used for various purposes, particularly for vibration
control and the removal of machines. However, the use of a spring generates
high amplitude at the resonance point; therefore, it is difficult to eradicate
vibration from all frequency bands. To solve this issue, the variable rate
spring was developed, which is composed of a magnetic spring. This variable
rate spring can change the spring constant. Basically, the natural frequency of
the vibration system fluctuates with changes in the spring constant. As a
result, the problem can effectively be resolved by changing the resonance point
and eradicating the vibration. The variable rate spring is composed of a
magnetic spring and a compression spring; the utility of this spring was
verified by an experiment.
Keywords: Magnets spring, variable rate spring, vibration control
