Experimental device for compensating insufficient vertical acceleration of light model method

Abstract

The invention relates to an experimental device for compensating insufficient vertical acceleration of a light model method. The device is arranged in a wind tunnel experiment section. The device is connected with an embedded weapon throwing model, and comprises an aerial carrier model, an embedded missile model, an ejection mechanism, a traction block, a protective sleeve, and a traction block wire. The embedded missile is connected with the traction block into a whole through the traction block wire to move downwards; the traction block wire penetrates through the mass center of the embeddedmissile to provide a virtual force FV which is constant in size and vertical in direction for the embedded missile, and due to the fact that the FV acts on the mass center of the embedded missile, the FV does not act on rotating motion of the embedded missile relative to the mass center and only generates the effect on displacement Z of the embedded missile in the vertical direction. The device has the advantages of simple design, processing and assembly, strong model size adaptability, constant virtual force, no influence on a flow field near an external store and the like.

Description

technical field [0001] The invention relates to a high-speed wind tunnel delivery experiment device. Background technique [0002] Aircraft-bullet separation compatibility is one of the key technologies in the development of supersonic embedded weapon systems for new combat aircraft. The main task of aircraft-bullet separation compatibility research is to verify the safe separation of weapons and aircraft and ensure that the weapons have good performance after separation. The flight attitude of the aircraft, thereby determining the weapon launch envelope of the aircraft. [0003] The wind tunnel delivery experiment based on similar motion dynamics is an unsteady simulation method to study the separation compatibility of embedded weapons and projectiles. For high-speed wind tunnel delivery experiments (Ma>0.8), the impact of air compressibility on the embedded weapons must be considered. Influenced by the separation compatibility of the machine and the bomb, the Mach numb...

AI Technical Summary

Problems solved by technology

[0015] The technical problem to be solved by the present invention is: to solve at least the above-mentioned problems and / or defects, the present invention provides an experimental device that compensates for the lack of vertical acceleration of the light model method, which ensures that the design, processing and assembly of the experimental device are simple, the model size is adaptable, and the virtual The force is constant and does not affect the flow field near the external storage

Images