A device for measuring the adhesive force between ice and object surface
An adhesive force and object surface technology, applied in the field of measurement, can solve problems such as the inability to meet the needs of adhesive force testing, and achieve the effects of simple structure, convenient operation and high efficiency
Inactive Publication Date: 2017-08-25
AERODYNAMICS NAT KEY LAB
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Problems solved by technology
[0005] The purpose of the present invention is to: in the current existing test equipment for measuring the cohesive force between ice and asphalt pavement, the ice is produced in the form of natural freezing of water, which cannot satisfy the cohesive force of ice formed by the impact of simulated wings in the ice wind tunnel For the problem of testing requirements, provide a device for measuring the adhesion force between ice and object surface
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Embodiment 1
[0046] As shown in the figure, the device for measuring the adhesive force between ice and object surface of the present invention includes an upper ring, a lower ring, an upper fixing plate, a water mist collector, and a fixing seat. Wherein, the upper ring and the lower ring are in the shape of a semicircle respectively, and the two cooperate to form a circular support ring. The water mist collector is in the shape of a circular platform, with the large mouth of the water mist collector as the upper opening and the small mouth of the water mist collector as the lower opening. A movable connection is adopted between the plate and the convex edge of the upper opening end. One end of the fixed seat is used to place experimental materials, and this end is closely attached to the lower opening, and the other end of the fixed seat is connected with the lower fixed plate, and the lower fixed plate is movably connected with the lower ring. The upper fixing plate and the upper ring,...
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The present invention discloses an ice and object surface adhesion force measuring device, and aims to solve that problem that due to ice formation manner of natural water freezing, ice and asphalt pavement adhesion force measuring test equipment in the prior art cannot meet measuring requirements of adhesion force of ice formed by impaction of a simulation wing in an ice wind tunnel. The ice and object surface adhesion force measuring device comprises an upper ring, a lower ring cooperating with the upper ring, an upper fixed plate attached to the upper ring, a lower fixed plate attached to the lower ring, a water mist collector and a fixed seat, and the upper ring and the lower ring form a circular support ring. By use of the ice and object surface adhesion force measuring device, ice in different forms can be formed in different environmental parameters, the degree of adhesion of the ice and different materials can be measured, the change of the degree of the adhesion after formation of a liquid film by heating also can be measured, the amount of heat transferring can be quantified so as to provide technical support to mechanical method and thermal method de-icing systems. The ice and object surface adhesion force measuring device is reasonable in design, and easy to use, can effectively meet the measuring requirements of the adhesion force of the ice formed by impaction of the simulation wing in the ice wind tunnel, and has significant progress significance.
Description
technical field [0001] The invention relates to the measurement field, in particular to a device for measuring the cohesive force between ice and an object surface. The invention can measure the degree of bonding between different forms of ice formed under different environmental parameters and the surfaces of different materials, and the effect on the degree of bonding after heating to form a liquid film, and has good application prospects. Background technique [0002] When an aircraft flies in temperatures below freezing, if it encounters a cloud layer containing supercooled water droplets, the water droplets in the cloud layer impinge on the surface of the aircraft, causing icing. After the surface of the aircraft is icy, it will change the turbulent flow field of the aircraft, resulting in changes in the load distribution of the aircraft, thereby destroying the aerodynamic performance, affecting the maneuverability and stability of the aircraft, and endangering the flig...
Claims
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IPC IPC(8): G01N19/04
Inventor 易贤王绍龙周志宏陈晓东李岩车竞郭民
Owner AERODYNAMICS NAT KEY LAB