Ice collecting unit and device and device for measuring shearing strength between ice layer and fixed wall
A technology of collecting unit and measuring device, which is applied to measuring device and uses stable shear force to test material strength and strength characteristics, etc., can solve the problems of decreased aerodynamic performance, endangering flight safety, and prone to icing on the leading edge, etc. To achieve the effect of simple structure, strong practicability, and eliminating the influence of additional adhesion
Active Publication Date: 2020-03-17
CHINA AERODYNAMICS RES & DEV CENT
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Problems solved by technology
[0002] When the aircraft flies in the icing area (altitude 2km~8km), its leading edge (wing, horizontal tail, vertical tail, cockpit, engine intake lip, etc.) is prone to icing, which will cause aerodynamic performance degradation and damage flight safety
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[0049] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.
[0050] Any feature disclosed in this specification, unless specifically stated, can be replaced by other alternative features that are equivalent or have similar purposes. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.
[0051] Such as figure 1 As shown, a kind of ice collection unit of the present embodiment is installed on the column 4, and the column 4 passes through the inside of the ice collection unit 41, and includes a housing 1 and a cylindrical test piece 2 arranged inside the housing 1; the housing 1 The windward side 11 of the windward side 11 is provided with an ice collection window 12, and the ice collection window 12 has a radian matching the curved side of the test piece 2; the test piece 2 and the ic...
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The invention discloses an ice collecting unit which is installed on a stand column. The stand column penetrates through the interior of the ice collecting unit, and the ice collecting unit comprisesa shell and a columnar test piece which is arranged in the shell and provided with an arc-shaped side face; the windward side of the shell is provided with an ice collecting window, and the ice collecting window has a radian matched with the arc-shaped side surface of the test piece. A supporting assembly is arranged between the test piece and the stand column, and the test piece is tightly attached to the ice collecting window without gaps. The ice collecting device and the device for measuring the shearing strength between the ice layer and the fixed wall comprise the ice collecting unit. With application of the ice collecting unit and device and the device for measuring the shearing strength between the ice layer and the fixed wall, ice can be collected on the surface of the test pieceand the shearing strength between the ice and the test piece can be measured.
Description
technical field [0001] The invention relates to an ice collection unit, a device and a shear strength measuring device between an ice layer and a solid wall, and belongs to the technical field of wind tunnel test measurement. Background technique [0002] When the aircraft flies in the icing area (altitude 2km~8km), its leading edge (wing, horizontal tail, vertical tail, cockpit, engine intake lip, etc.) is prone to icing, which will cause aerodynamic performance degradation and damage Flight safety. For the ice that has formed, it must be removed as soon as possible, and one of the design input parameters of the deicing device is the shear strength between the ice and the solid wall (the leading edge of the aircraft), so it is particularly important to accurately measure or estimate the shear strength necessary. We first place the test piece of a certain material to be measured in an icing environment, and freeze on its surface under the given icing parameters to complete...
Claims
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Login to View More IPC IPC(8): G01N3/24G01N3/02
CPCG01N3/24G01N3/02G01N2203/0025G01N2203/0032G01N2203/0298G01N2203/0676
Inventor 肖春华吴海瀛杨升科郭奇灵
Owner CHINA AERODYNAMICS RES & DEV CENT