Engine simulator for dynamic simulation test in high-speed wind tunnel

Abstract

The invention discloses an engine simulator for a dynamic simulation test in a high-speed wind tunnel. An air inlet is disposed above an outer shell, the lower end of the air inlet is communicated with a gas collecting ring, a plurality of jet pipes are uniformly arranged at the inner wall of the outer shell, and the front end of each jet pipe is communicated with the gas collecting ring; a plurality of sheets are longitudinally and transversely arranged on a circular supporting ring to form a supporting frame, a mesh is arranged on the supporting frame to form a rectifier, a total pressure measuring harrow is composed of a plurality of total pressure measuring tubes and a plurality of cantilever supporting plates, the total pressure measuring tubes are supported by the cantilever supporting plates, the cantilever supporting plates are uniformly distributed along the inner circumference of an intake duct from the front part to the back part in an interlacing manner, the total pressuremeasuring harrow and the pressure measuring tubes of static pressure measuring holes are gathered to be a beam along a pressure measuring tube channel and then are guided out from the upper part at the back of the outer shell, and the static pressure measuring holes and the total pressure measuring harrow are arranged at the back of the rectifier. The invention has compact structure, each parameter is strictly calculated, each component can be conveniently detached and assembled, the test performance is stable and reliable, the precision of the test is high, and the data of the test is exact.

Description

technical field [0001] The invention relates to an experimental simulator, in particular to an engine simulator used for a high-speed wind tunnel dynamic simulation experiment during an aerodynamic experiment. Background technique [0002] The power plant of modern high-speed aircraft / aircraft mostly adopts turbojet or turbofan engine. The intake and exhaust of these engines have different effects on the aerodynamic characteristics of aircraft / aircraft with different layouts, such as lift, drag, and flight stability. The purpose of the engine power simulation experiment is to measure the influence of the intake and exhaust of the engine on the aerodynamic characteristics of the aircraft / aircraft when the engine is working. [0003] For the dynamic simulation experiment using the ejector simulator, in the low-speed wind tunnel, there is not much difference between the test equipment, the ejector simulator design, and the test technology compared with foreign countries, but t...

AI Technical Summary

Problems solved by technology

Therefore, under the conditions of high pressure and large dynamic load, the functions of air supply, ejection, rectification, and pressure measurement are realized in the limited space of the simulator, and it is difficult to design, process and measure related parameters.

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