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Deformation wall surface mechanism capable of being used for testing resistance

A technology of wall surface and resistance, applied in fluid dynamics test, test of machine/structural components, measurement device, etc., can solve the problems of long period, difficult to approximate flow field simulation, etc., achieve low cost, increase diversity, improve The effect of efficiency

Pending Publication Date: 2020-03-06
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the shortcomings of numerical simulation and fluid experiments and other methods that have a long cycle, and it is difficult to achieve an approximate simulation of the flow field in the actual marine environment, many studies are still only at the theoretical level, and many of the existing hydrodynamic drag reduction technologies Not yet in engineering

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  • Deformation wall surface mechanism capable of being used for testing resistance
  • Deformation wall surface mechanism capable of being used for testing resistance
  • Deformation wall surface mechanism capable of being used for testing resistance

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the stated scope.

[0024] like Figure 1-5 As shown, a deformable wall surface mechanism that can be used for resistance testing includes a motor 101. The motor 101 of the present invention is a stepper motor. A pair of bearing supports are provided at the right end of the motor 101, and a camshaft 106 is provided on the bearing supports. The bearing supports include The upper bearing support 103 and the lower bearing support 104 are provided with waterproof deep groove ball bearings 107, the upper bearing support 103 is fixed to the lower bearing support 104 by cylindrical hexagon head bolts 108, and one end of the camshaft 106 passes through the waterproof deep groove The ball bearing 107 and the end cover are connected to the motor 101 through the quincunx coupling 102 to realize the coaxial rotation...

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Abstract

The invention discloses a deformation wall surface mechanism capable of being used for testing resistance, and relates to the technical field of resistance test. A group of eccentric disk cams with adjacent phase difference being 90 degrees on a cam shaft is driven to rotate through a plum-shaped coupling by a stepping motor, a cam roller connected with the eccentric disc cams does reciprocating motion in a vertical direction by rotation of the eccentric disc cams so that an elastic component is compressed and motion of a threaded rod is transmitted to a deformation wall surface, and since thefive eccentric disk cam are different in phase, the deformation wall surface connected with a first support plate and a second support plate generate different motion at the same moment, and the deformation wall surface can output sinusoidal waveform. The mechanism has the advantages of high efficiency and low cost and is simple to operate, and standard sinusoidal motion can be achieved.

Description

technical field [0001] The invention relates to the technical field of resistance testing, in particular to a deformed wall surface mechanism that can be used for resistance testing. Background technique [0002] Turbulent flow is a common flow form in fluid mechanics. Viscous friction exists at the interface of different fluids. The viscous force at the solid-liquid interface is an important factor for the formation of turbulent flow. With the continuous development of today's scientific and technological level, the performance of ships and underwater vehicles is becoming more and more perfect, and the number is also increasing. Therefore, how to effectively reduce the surface frictional resistance of ships and underwater vehicles has become a breakthrough for people to create new energy-saving technologies. Marine organisms such as rays can use their body functions and their own structure to fully exert the drag reduction performance. Not only can they swim freely underwa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M10/00
CPCG01M10/00
Inventor 娄维尧樊美菱马正阳徐凡林韩波沈伟健杨克允蔡姚杰
Owner ZHEJIANG UNIV OF TECH