Pneumatic test device based on large-size control surface hinge moment

Abstract

The invention belongs to the technical field of airplane wind tunnel tests, and discloses a pneumatic test device based on large-size control surface hinge moment, which comprises a vertical fin, a horizontal tail connecting plate, a horizontal tail connecting seat, a wind tunnel connecting seat, a horizontal tail stabilizer, spherical hinges and an elevator. The vertical fin is fixedly connected with the horizontal tail stabilizer through the horizontal tail connecting plate and the horizontal tail connecting seat, the horizontal tail stabilizer is connected with the elevator through the at least two spherical hinges, and the bottom of the elevator is connected. The whole device is installed in a wind tunnel through the wind tunnel connecting seat. According to the pneumatic test device based on the large-size control surface hinge moment, through the design of the spherical hinges, the technical problem of connection of an elevator and a stabilizer in a large-size control surface hinge moment test is effectively solved, and meanwhile the measurement precision of a balance is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of aircraft wind tunnel tests, and relates to an aircraft rudder surface device for aerodynamic tests, in particular to an aerodynamic test device for measuring large-scale rudder surface hinge moments. Background technique [0002] In the process of aircraft R&D and design, it is necessary to conduct wind tunnel hinge moment tests on various rudder surfaces such as flaps, ailerons, elevators, and rudders to obtain the variation law of the rudder surface hinge moment parameters and master the aerodynamic performance of the rudder surface. The measurement accuracy of the rudder surface hinge moment wind tunnel test results plays an important role in supporting the maneuverability of the aircraft and the design of the control system. [0003] However, in order to reduce the test cost and shorten the test period, the rudder surface hinge moment wind tunnel test usually uses a wind tunnel test device with a larg...

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Problems solved by technology

However, the realization of the large-scale rudder surface hinge moment test device does not enlarge the simple size ratio of the conventional large-scale rudder surface hinge moment test device. In the conventional large-scale rudder surface hinge moment test, the rudder surface deflection, but the weight of the large-sized rudder surface is very heavy, and it cannot be lifted by manpower. It is not feasible to realize the deflection of the rudder surface by manually replacing the angle blocks; In addition, it was found in the design that if the conventional angle block design scheme is adopted, when the angle block meets the strength and rigidity requirements of the connection, the size of the angle block is too large. At this time, the large-size angle block will seriously damage the rudder surface and the stable aerodynamic shape, which is absolutely not allowed

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