Machine -level protection materials are meticulously simulated fixed devices

A technology of protective material and fixing device, which is applied in the field of ablation simulation fixing device of protective material between engine stages, can solve the problems such as difficulty in simulating and observing pulses of double-pulse engine II, and achieves a simple structure, easy assembly, and strong universality. Effect

Active Publication Date: 2022-08-09
NANJING UNIV OF SCI & TECH
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  • Description
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Problems solved by technology

[0005] The object of the present invention is to provide an engine interstage protection material ablation simulation and fixing device, which solves the problem that it is difficult to simulate and observe the ablation process of the radial soft interlayer of the double pulse engine II pulse. Installation and fixation of soft compartment working ablation procedure

Method used

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  • Machine -level protection materials are meticulously simulated fixed devices

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with the accompanying drawings.

[0017] combine figure 1 , an engine interstage protective material ablation simulation fixture, which is used to study the mass transfer and heat transfer ablation process of thermal insulation materials, and has important reference value for the design of engine thermal protection structures.

[0018] The device includes a plug cover 1 , a test piece fixing end cover 2 , a test piece 3 , an engine casing 4 and an inner liner 5 .

[0019] The 45 steel material used for the blocking cover 1, the fixed end cover 2 of the test piece and the engine casing 4 is used to ensure the strength and meet the requirements of long-term operation of the dual-pulse engine; the lining 5 is made of EPDM rubber material, Its purpose is to flame retardant and heat insulation to avoid the shell temperature being too high.

[0020] combine figure 1 , the blocking cover 1, the test piece ...

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Abstract

The invention discloses an engine interstage protective material ablation simulation fixing device, comprising a plug cover (1), a test piece fixing end cover (2), a test piece (3), an engine casing (4) and an inner lining (5) ); both ends of the engine casing (4) are provided with external threads, the plug cover (1) is internally provided with internal threads to connect with one end of the engine casing (4), and the test piece fixing end cover (2) has an annular ring inside. A test piece (3) is installed in the groove; there is a boss at the inner center of the plug cover (1), and there are external threads on the outside of the boss. External thread connection. The invention solves the problem that the working ablation process of the double-pulse engine II pulse radial soft spacer is difficult to simulate and observe, and the device can realize the installation and fixation of the working ablation process of the radial soft spacer.

Description

technical field [0001] The invention belongs to the field of experimental research of a thermal protection system of a dual-pulse engine, in particular to an ablation simulation fixing device of an engine inter-stage protection material. Background technique [0002] Solid rocket motors are widely used in various weapon systems because of their simple structure, convenient use and reliable operation. However, with the gradual development of the aerospace field, the inherent defects of the uninterruptible and controllable thrust of traditional solid rocket motors have become increasingly prominent, especially when compared with the superior controllability of liquid rocket motors. Therefore, the research on the controllability technology of solid rocket motor is particularly important. [0003] After the two-way promotion between modern warfare and missile weapon systems, the latest research result of solid rocket motor technology - dual-pulse solid rocket motor came into be...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N25/02G01M15/02
CPCG01N25/02G01M15/02Y02T10/12
Inventor 黄波李映坤陈雄
Owner NANJING UNIV OF SCI & TECH
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