Vibration Experiments Based on High Temperature Superconductor

This paper introduces a new non-contact superconducting excitation technology.Using the Meissner effect of the non-ideal second type superconducting bulk material YBCO,the permanent magnets are suspended under field cooling conditions.The coil fixed in the center of the YBCO superconducting block,and the vibration controller generates a control signal input into the coil to generate an alternating magnetic field above the YBCO superconducting block,and the permanent magnet table generates vibration to realize non-contact vibration.The magnetic stiffness test,sine sweep test and random vibration test based on high temperature superconductivity are also introduced.The results verify the feasibility of this excitation technology.compared with the existing vibration test platform,its high frequency band control effect is good,and the multi-degree-of-freedom vibration test bench can be extended on the existing basis.