A chip-type six-component balance applied to the force measurement of aircraft components
An aircraft component and six-component technology, which is applied in the field of component balances, can solve problems such as insufficiencies, and achieve the effects of long service life, good market application prospects, and wide application range
Active Publication Date: 2020-03-24
CHINA ACAD OF AEROSPACE AERODYNAMICS
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Problems solved by technology
[0004] The technical problem solved by the present invention is: to overcome the deficiencies of the prior art, the present invention provides a chip-type six-component balance applied to the force measurement of aircraft components. The coupling between them overcomes the shortcomings of insufficient measurement accuracy of the force measurement of aircraft components, and improves the test capability of the wind tunnel in the force measurement of aircraft components
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[0026] Z-direction combination element 2 is responsible for measuring lateral force (Z) and yaw moment (My), X-direction element 3 is responsible for measuring resistance X, Y-direction and roll combination element 4 is responsible for measuring lift force Y, pitching moment Mz and rolling moment Mx; the fixed end 1 is fixed to the main body of the model by screws, and the connection end 5 of the model is fixed to the component under test by screws.
[0027] The X-direction element 3 includes eight supporting pieces 22 and two measuring beams 21, four supporting pieces 22 and one measuring beam 21 form a group, the two groups are symmetrical about the XY plane, and each measuring beam 21 has two supporting pieces on both sides 22. The support piece 22 needs to ensure sufficient stiffness in the Y direction to reduce the interference of other components on the resistance, and also needs to ensure the flexibility in the X direction to ensure the transmission efficiency of resista...
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The invention discloses a sheet-type six-component balance applied to aircraft part force measurement. The sheet-type six-component balance comprises a fixed end, a Z-direction combined element, an X-direction element, a Y-direction and rolling combined element and a model connecting end; the fixed end and the model connecting end are fixedly connected with a model body and a tested part respectively; the fixed end, the Z-direction combined element, the X-direction element, the Y-direction and rolling combined element, and the model connecting end are sequentially connected with one another; the Z-direction combined element is used for measuring the lateral force Z and yaw moment My of the measured part; the X-direction element is used for measuring the resistance X of the measured part; and the Y-direction and rolling combined element is used for measuring the lift force Y, pitching moment Mz and rolling moment Mx of the measured part. The sheet-type six-component balance applied to aircraft part force measurement of the invention has a sheet-type appearance and is in series structure layout, and therefore, coupling between components can be effectively reduced, a defect that themeasurement accuracy of the aircraft part force measurement can be eliminated, and the test capability of a wind tunnel in the aircraft part force measurement can be improved.
Description
technical field [0001] The invention relates to a piece-type six-component balance applied to the force measurement of aircraft components, especially suitable for special force measurement tests of aircraft doors, canards, winglets and other components, and belongs to the technical field of component balances. Background technique [0002] In the wind tunnel test of aircraft, the dynamometric test of each component is a necessary test for component strength verification and drive component selection. For example, the wind tunnel test of the aircraft door measures the aerodynamic force borne during the opening process of the aircraft door, and uses this as a basis to check the strength and structural stability of the door opening and closing mechanism, and at the same time select the drive components . Typically, such components are subject to a six-component force system in space. The previous habit is to select the key quantity for detection, which will cause too much in...
Claims
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IPC IPC(8): G01M9/06
CPCG01M9/062
Inventor 赵金海孙侃肖策
Owner CHINA ACAD OF AEROSPACE AERODYNAMICS