一种高雷诺数刚性立管自激振动实验装置
By designing cross-braced steel wires and three-part force sensors, the problems of low measurement accuracy and easy structural failure of existing devices in high Reynolds number flow fields were solved, and accurate measurement and stable experiment of self-excited vibration of rigid risers under high Reynolds number were realized.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANGHAI JIAOTONG UNIV
- Filing Date
- 2026-01-15
- Publication Date
- 2026-07-17
AI Technical Summary
Existing rigid riser self-excited vibration experimental devices suffer from problems such as severe sensor susceptibility to bending moment and low measurement accuracy in high Reynolds number flow fields, susceptibility of device structure to friction damping interference, and inability to effectively monitor fluid loads.
The system employs cross-braced steel wires to synchronize vibration modules on both sides, embedding a three-part force sensor to form a hinged connection with the rigid riser, and combining an aluminum profile frame and an air-bearing bushing to reduce friction, thereby achieving synchronous motion and accurate measurement.
This improved the measurement accuracy and structural stability of the experimental setup under high Reynolds number flow conditions, reduced the risk of failure, and ensured the reliability and flexibility of experimental data.
Smart Images
Figure CN121678085B_ABST