A Thrust Measuring Device for Ground Tests of Rotating Detonation Engines
A detonation engine, ground test technology, applied in the direction of rocket engine devices, machines/engines, jet propulsion devices, etc., can solve problems such as thrust, specific impulse and other rocket engine performance that are less studied
Active Publication Date: 2021-07-20
XIAN AEROSPACE PROPULSION INST
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Problems solved by technology
[0003] At present, the experimental research on the rotary detonation engine mainly focuses on the research on the detonation performance, but there are few researches on the performance of rocket engines such as thrust and specific impulse.
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[0049] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. 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.
[0050] In the description of the present invention, it should be noted that the terms "first" and "second" are used for description purposes only, and should not be understood as indicating or implying relative importance.
[0051] In the description of the present invention, it should also be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be interpreted in a broad sense, for example, it can be a fixed connection or a flexible connection. ...
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The invention discloses a thrust measurement device for ground test of a rotary detonation engine, which comprises a base, a clamping guide mechanism, a combustion chamber test piece, a force transmission device, a mechanical sensor, a force bearing frame and a data acquisition system; The device transmits the thrust of the combustion chamber test piece to the mechanical sensor to measure the thrust through the data acquisition system. The entire test device adopts a horizontal structure, and the rear end of the combustion chamber test piece is supported and guided by the clamping guide mechanism, and the combustion chamber test piece and the force transmission device are at the same height. By adopting the method of the present invention, the curve of thrust changing with time is obtained through the ground test, and then performance parameters such as specific impulse and characteristic speed of the engine are obtained, which provides a powerful reference index for the design of the rotating detonation engine.
Description
technical field [0001] The invention relates to the technical field of engine ground tests, in particular to a thrust measuring device used for ground tests of rotating detonation engines. Background technique [0002] The detonation combustion method is different from the previous isobaric combustion method. It has the advantages of fast energy release rate and high thermal cycle efficiency. It has become a research hotspot in the field of propulsion in recent years. The combustion chamber of the rotary detonation engine based on the form of detonation heat release is generally an annular structure, the detonation wave rotates and propagates in the circumferential direction, and the high-temperature and high-pressure gas is discharged from the tail of the engine in the axial direction to generate continuous thrust. [0003] At present, the experimental research on rotating detonation engines mainly focuses on the research on detonation performance, but there are few researc...
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IPC IPC(8): F02K9/96
CPCF02K9/96
Inventor 尚帅汪广旭严宇杨宝娥陈宏玉王永佳冯建畅
Owner XIAN AEROSPACE PROPULSION INST