A quasi-zero stiffness unit, a metamaterial vibration isolation structure and a design method suitable for different tensile loads
By parametrically designing and combining tensile unit configurations in multiple levels, and by combining the interaction between positive and negative stiffness, the stiffness response of the structure under different loads is controlled, which solves the problem of poor adaptability of quasi-zero stiffness structures under tensile conditions and achieves stable low-frequency vibration isolation performance over a wide load range.
Patent Information
- Application Number
- CN202610793224.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-06-03
- Publication Date
- 2026-08-18
AI Technical Summary
Existing quasi-zero stiffness structures have poor adaptability under tensile conditions and are difficult to maintain stable low-frequency vibration isolation performance under variable tensile loads. Traditional design methods are difficult to meet the needs of engineering applications.
By parametrically designing and multi-level combining the tensile unit configuration, and combining the interaction between positive and negative stiffness, the stiffness response of the structure under different loads can be controlled. Furthermore, by adjusting the parameters, the quasi-zero stiffness platform can be adaptively adjusted to adapt to different tensile load conditions.
It achieves stable low dynamic stiffness characteristics over a wide load range, improves the low-frequency vibration isolation performance and adaptability of the structure, and avoids vibration isolation performance failure caused by load changes.