1. Reactor vibration reduction based on giant magnetostrictive materials
- Author
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Zhu Lihua, Yan Rongge, Zhang Xiaohong, Weng Ling, Liu Weiying, Wu Yuechao, Sun Ying, and Duan Menghua
- Subjects
Materials science ,General Physics and Astronomy ,02 engineering and technology ,engineering.material ,01 natural sciences ,Condensed Matter::Materials Science ,Magnetization ,Nuclear magnetic resonance ,0103 physical sciences ,0202 electrical engineering, electronic engineering, information engineering ,Physics::Chemical Physics ,Inverse magnetostrictive effect ,Composite material ,Shrinkage ,010302 applied physics ,Condensed Matter::Other ,020208 electrical & electronic engineering ,Magnetostriction ,lcsh:QC1-999 ,Magnetic field ,Vibration ,Safe operation ,engineering ,Condensed Matter::Strongly Correlated Electrons ,lcsh:Physics ,Electrical steel - Abstract
The vibration of reactors not only produces noise pollution, but also affects the safe operation of reactors. Giant magnetostrictive materials can generate huge expansion and shrinkage deformation in a magnetic field. With the principle of mutual offset between the giant magnetostrictive force produced by the giant magnetostrictive material and the original vibration force of the reactor, the vibration of the reactor can be reduced. In this paper, magnetization and magnetostriction characteristics in silicon steel and the giant magnetostrictive material are measured, respectively. According to the presented magneto-mechanical coupling model including the electromagnetic force and the magnetostrictive force, reactor vibration is calculated. By comparing the vibration of the reactor with different inserted materials in the air gaps between the reactor cores, the vibration reduction effectiveness of the giant magnetostrictive material is validated.
- Published
- 2017