Bionic non-smooth surface friction resistance testing device based on underwater

Abstract

The present invention provides a bionic non-smooth surface friction resistance testing device based on underwater. The device comprises a test platform support, a rotation test part with a seal cavity, a power input assembly, a water distribution assembly, a mobile assembly and a signal processing assembly. The rotation test part includes a rotation shaft, a seal assembly on the rotation shaft, a seal cavity assembly and a test sample piece test assembly, the rotation shaft is installed on the through hole at the left end cover of the seal cavity, the seal assembly is arranged at the outer end of the rotation shaft at the outer portion of the seal cavity assembly, and the test sample piece test assembly is arranged at the inner end of the rotation shaft at the inner portion of the seal cavity assembly; and the rotation test assembly has the same installation center height as the power input assembly, the signal processing assembly and the mobile assembly. The bionic non-smooth surface friction resistance testing device based on the underwater realizes the friction resistance testing test of the bionic non-smooth surface in the water environment and the bionic non-smooth surface friction resistance testing test based on different pressures, and is easy to operate, saved in time, reduced in usage cost and high in accuracy.

Description

technical field [0001] The invention relates to an underwater bionic non-smooth surface friction resistance testing device. Background technique [0002] Friction is one of the main ways of energy loss. When an object moves underwater, 70% to 80% of the resistance is surface friction resistance. When moving at high speed, frictional resistance accounts for about 40% of the total resistance. How to reduce friction loss and save energy is a hot topic in current research. The current drag reduction methods at home and abroad include the following aspects: additive drag reduction, coating drag reduction, microbubble drag reduction, groove drag reduction, joint drag reduction, in addition, drag reduction methods include wall vibration drag reduction, traveling wave drag reduction Drag reduction, body drag reduction, magnetic drag reduction, sediment drag reduction, etc. After decades of efforts of researchers, especially the development of turbulence theory, breakthroughs have...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems of high test cost, long period, high risk and inaccurate data dispersion of the current drag reduction test device, the present invention proposes a bionic non-destructive device based on underwater with strong controllability, reliable data and simple and convenient test. Smooth surface friction resistance test device

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