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High-temperature rotating friction performance test testing system of hanging shaft structure

A technology of experimental testing and rotational friction, which is applied in the testing of aircraft components, etc., can solve problems such as the difficulty of force analysis and aggravate the nonlinear mechanical properties of materials, and achieve the effects of simple method, flexible design and accurate measurement.

Inactive Publication Date: 2019-12-06
BEIJING INST OF STRUCTURE & ENVIRONMENT ENG +1
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

The complex and diverse detailed structure brings great difficulty to the mechanical analysis of the structure, and the high temperature environment further aggravates the nonlinearity of the mechanical properties of the material

Method used

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  • High-temperature rotating friction performance test testing system of hanging shaft structure
  • High-temperature rotating friction performance test testing system of hanging shaft structure
  • High-temperature rotating friction performance test testing system of hanging shaft structure

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Embodiment Construction

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present...

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Abstract

The invention discloses a high-temperature rotating friction performance test testing system of a hanging shaft structure. According to the system, effective simulation of the long-time high-temperature working environment of the structure is achieved through a follow-up heating device, rolling bearing sleeves are designed at the two ends of a hanging shaft, and the hanging shaft rotates freely while it is guaranteed that normal support reaction is applied to a plug-in point. According to the test system, it is guaranteed that high temperature, aerodynamic force, steering engine main power andother multiple load conditions are synchronously applied, main power loads are measured in real time, dynamic friction coefficients can be calculated, and the high-temperature dynamic friction performance of the structure can be evaluated.

Description

technical field [0001] The invention relates to the technical field of rotational friction performance testing, in particular to the high-temperature rotational friction performance test of various types of flight control surfaces such as elevators, rudders, and ailerons of hypersonic aircraft, space-to-ground reusable aircraft, and other related types of aircraft. test system. Background technique [0002] During high-speed flight, the aircraft needs to constantly change the deflection angle of the rudder, elevator, aileron and other flight control surfaces to adjust and control its own flight attitude. The flight control surface is realized and fixed by the hanging shaft structure (hanging shaft friction pair) The connection and relative rotation between the main wings. During the flight, the hanging shaft structure (friction pair of the hanging shaft) must not only carry the aerodynamic load caused by the swing of the flight control surface and the active force load of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64F5/60
CPCB64F5/60
Inventor 薛宇轩马星博甄雷兴田玉坤何钦华
Owner BEIJING INST OF STRUCTURE & ENVIRONMENT ENG
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