This research theme focuses on the structural modelling and mechanical analysis of superconducting electromagnets. We aim to ensure their stability and reliability under complex electromagnetic and thermal loads through multiphysics simulation and optimisation.
Research Background and Significance
Superconducting rotating machines offer high efficiency and power density, making them promising for next-generation applications. However, their complex electromagnetic, thermal, and mechanical interactions make experimental validation costly and time-consuming. Structural failure or deformation under combined electromagnetic and thermal stresses can significantly affect system stability and reliability.
Numerical modelling provides an effective way to address these challenges. Through multiphysics simulation, the electromagnetic forces, thermal gradients, and mechanical stresses within superconducting electromagnets can be accurately evaluated before prototype fabrication. This approach reduces experimental cost, accelerates design iteration, and ensures mechanical safety and performance optimisation during the early design stages.
Modelling and Experimental Validation
1. Fabrication
•Liquid nitrogen dewars were produced via 3D printing.
•Superconducting coils were placed inside and connected in series.
2. Magnetic Circuit
•A complete magnetic flux circuit forms upon energization of the superconducting coils.
3. EMF Generation
•An external copper coil cuts the magnetic flux to induce EMF.
