Fixing tool suitable for air rudder jet wind tunnel test

Abstract

The invention provides a fixing tool suitable for an air rudder jet flow wind tunnel test. The tool comprises a tool body, a lower panel and an air rudder; the lower panel is mounted at the lower partof the tool body, and the air rudder is installed on the upper portion of the tool body. The tool body comprises an upper plate, a rear plate, a left side plate, a right side plate, a left front sideplate, a right front side plate, a tool front side bottom plate and a reinforcing frame. The air rudder is installed on the upper portion of the upper plate, the lower portion of the upper plate is sequentially connected with the upper edges of the left front side plate, the left side plate, the rear plate, the right side plate and the right front side plate in the circumferential direction, andthe tool front side bottom plate is sequentially connected with the lower edge of the left front side plate, the lower edge of the right front side plate and one side of the lower panel in the circumferential direction. The other three sides of the lower panel are sequentially connected with the lower edges of the left side plate, the rear plate and the right side plate to form a closed steering engine system environment, the requirements for thermal assessment and stable supporting of an air rudder and a steering engine system are met. The structure is simple, and practicability is high.

Description

technical field [0001] The invention relates to the field of missile overall design, in particular to a fixed tool suitable for air rudder jet flow wind tunnel test. Background technique [0002] Engine tests, especially high-altitude tests that simulate high-altitude flight environments, are indispensable for the development of high-performance aeroengines. Aeroengine high-altitude simulation test bench is also called high-altitude platform, which can simulate the state of the engine in the real flight environment on the ground. The high-altitude platform is divided into direct connection type, free jet type and propulsion wind tunnel type. The so-called jet refers to the flow of fluid injected into the same or another fluid from an orifice or nozzle. If the fluid is injected into an infinite space with the same properties, it is called a submerged free jet. [0003] As missiles fly faster and faster, the heat-resistant design of the air rudder has emerged as a technical ...

AI Technical Summary

Problems solved by technology

[0004] Patent document CN201126400Y discloses a new type of air rudder deflection angle fixing device for wind tunnel test model of aerospace vehicle. The device is composed of model tail section, air rudder and air rudder pressure plate. The air rudder pressure plate is fixed on the tail of the model with screws, but this design does not meet the test requirements for simulating a thermal environment

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