Angular displacement-free damping device and application thereof
By designing a cross-shaped sliding limit disk structure and a multi-directional coupling vibration reduction mechanism, the problem of decreased measurement accuracy of the DIC testing system under large vibration table experimental environment was solved. This achieved the preservation of all-round translational displacement and multi-dimensional vibration energy dissipation, thereby improving measurement accuracy and system stability.
Patent Information
- Application Number
- CN202610219257.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-02-24
- Publication Date
- 2026-05-26
AI Technical Summary
In the experimental environment of a large shaking table, the measurement accuracy of the DIC test system decreases due to the transmission of ground vibration through the support device. Existing vibration damping devices without angular displacement are difficult to retain translational displacement while restricting rotational degrees of freedom, and the spring damper arrangement structure is simple, resulting in nonlinear interference and low vibration reduction efficiency.
A vibration reduction device without angular displacement was designed. It adopts a cross-shaped sliding limiting disk structure to limit the angular displacement of the equipment platform while retaining the translational degrees of freedom in all directions. The translational displacement is stably transmitted through a floating plate and parallel linkage structure. Combined with a multi-directional coupling vibration reduction mechanism, the vertical and horizontal vibration energy is dissipated simultaneously, thus constructing a multi-dimensional collaborative vibration reduction system.
It effectively blocked the transmission path of ground vibration to the DIC testing system, improved measurement accuracy, and achieved the effects of precise and efficient force transmission, stable and reliable structure, and comprehensive vibration reduction coverage, significantly improving the measurement stability and accuracy of the DIC system.