Multi-field coupling model considering dynamic losses for giant magnetostrictive transducers

作者：Huang Wenmei^*; Xue Yinlong; Wang Li; Weng Ling; Wang Bowen

来源：Transactions of China Electrotechnical Society, 2016, 31(7): 173-178.

• Design and Development
• Dynamic loss
• Energy balance principle
• Giant magnetostrictive transducer
• Jiles Atherton model
• Multi-field coupling models
• Numerical algorithms
• Thermodynamic theory

Based on the thermodynamic theory, the Jiles-Atherton model, the energy balance principle, and the structural dynamics principle of the transducer system, a multi-field coupling model of the giant magnetostrictive transducer is founded, which includes the magnetic-mechanical-thermal coupling terms and takes the dynamic losses into account. According to the proposed model, the relation between the magnet field and the output strain of the transducer is calculated using the numerical algorithm. Simulation results are in good agreement with the experimental ones, which indicates that the multi-fields coupling model considering the dynamic losses can well describe the actual working conditions of the transducer and provide theoretical guidance for design and development of the transducer in future.

• 出版日期2016
• 单位河北工业大学