The suppression of magnetic force decay in a superconductor-magnet levitation system by forced high-frequency small-amplitude vibration

•A dynamic superconducting levitation measurement system with a vibration exciter was established.•Influence of measurement clearance, vibration frequency and amplitude on dynamic superconducting force was investigated.•A drift in levitation force can be observed under the magnet vibration with a lower frequency and a larger amplitude.•The high-frequency low-amplitude vibration of the magnet can effectively suppress the superconducting magnetic force decay.