一种可双向调节的曲折磁路式磁流变阻尼器
By designing a bidirectional adjustable tortuous magnetic circuit magnetorheological damper, a tortuous magnetic circuit is formed by a magnetic ring and a permanent magnet, which enables bidirectional adjustment of the damping force. This solves the problems of insufficient damping force and liquid sedimentation in traditional magnetorheological dampers under zero current conditions, and improves the stability and flexibility of the damper.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANGHAI JIAOTONG UNIV
- Filing Date
- 2023-09-25
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional magnetorheological dampers have insufficient damping force in the zero-current state, resulting in poor control performance when the power supply is lost. Furthermore, the magnetorheological fluid is prone to sedimentation, making it difficult to meet the engineering application requirements under heavy load conditions, and there is a risk of blockage.
A bidirectional adjustable tortuous magnetic circuit magnetorheological damper was designed. By setting multiple magnetic rings and permanent magnets, a tortuous magnetic circuit is formed. The permanent magnets provide magnetic field support when the power is off. Combined with the magnetic field generated by the adjustable coil, the damping force can be adjusted bidirectionally. The sealed structure prevents liquid sedimentation.
The maximum output and adjustability of the damper were increased, the control effect under different conditions was enhanced, the sedimentation of the magnetorheological fluid was prevented, and the stability and flexibility of the device were improved.
Smart Images
Figure CN117267296B_ABST