A non-contact friction damping measurement method and device for wave energy experimental models
By conducting multi-degree-of-freedom decay experiments in numerical and experimental water tanks and calculating frictional damping using the differences in decay curves, the problem of difficulty in measuring frictional damping in wave energy device model experiments was solved, and a more accurate device optimization design was achieved.
CN115655647BActive Publication Date: 2026-05-26GUANGZHOU INST OF ENERGY CONVERSION CHINESE ACAD OF SCI
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- GUANGZHOU INST OF ENERGY CONVERSION CHINESE ACAD OF SCI
- Filing Date
- 2022-10-09
- Publication Date
- 2026-05-26
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Figure CN115655647B_ABST
Abstract
This invention discloses a non-contact frictional damping measurement method and device for a wave energy experimental model. The method includes conducting numerical water tank multi-degree-of-freedom attenuation experiments and experimental water tank multi-degree-of-freedom attenuation experiments on the established wave energy experimental model, obtaining attenuation curves for each degree of freedom; calculating the damping value at the corresponding frequency based on the respective attenuation curves; and subtracting the damping value calculated from the numerical water tank attenuation curve from the damping value calculated from the experimental attenuation curve to obtain the mechanical frictional damping in the wave energy experimental model. This invention cleverly utilizes the difference between the multi-degree-of-freedom attenuation curves of the model in the numerical water tank and experimental water tank experiments, and obtains the frictional damping coefficient of the model experiment through theoretical analysis, providing data support for the final optimized design of the wave energy device.
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