Multi-freedom-degree force measuring device for vibration test of ocean platform model

Abstract

The invention discloses a multi-freedom-degree force measuring device for a vibration test of an ocean platform model. The multi-freedom-degree force measuring device comprises a movement transmission disc, connecting rod supports, connecting rod pieces, three-component sensors, sliding wheel supports and fixed square plates. The movement transmission disc is connected with a forced movement mechanism and is a base disc of the whole device, the connecting rod supports are fixed to the movement transmission disc or the three-component sensors, the connecting rod pieces are connected with two connecting rod supports or connected with the connecting rod supports and the sliding wheel supports, the upper end faces and the lower end faces of the three-component sensors are connected with the connecting rod supports and the fixed square plates respectively, the sliding wheel supports are connected with the connecting rod pieces and support the fixed square plates, and the fixed square plates are fixed to the ocean platform model, or connected with the three-component sensor, or supported by the sliding wheel supports. The multi-freedom-degree force measuring device is simple in structure, clear in function and capable of being used repeatedly, and the force measurement requirements of the forced vibration test of the ocean platform model under the test work conditions of different freedom degrees and different freeboard heights are met.

Description

technical field [0001] The invention relates to a device in the technical field of ships and ocean engineering, in particular to a multi-degree-of-freedom force measuring device used for ocean engineering model oscillation tests. Background technique [0002] The ocean engineering model test is to shrink the ocean platform into a platform model according to a certain proportion in the test pool according to the similarity principle, and at the same time, convert the ocean environment parameters into model values ​​to simulate the performance of the ocean platform in the actual ocean environment, so as to predict the ocean structure The hydrodynamic performance of the object. Among them, the oscillation test is based on the potential flow theory, through the forced motion mechanism to make the platform model reciprocate in six degrees of freedom in the test pool, and measure the force or moment on the platform, so as to convert it into additional mass, potential flow damping,...

AI Technical Summary

Problems solved by technology

This approach solves some practical problems, but there are disadvantages such as large measurement error, unstable structure, inconvenient operation, single function and non-reusable use.

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