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Forming method of special-shaped composite skirt of solid rocket engine

A technology of solid rocket and forming method, which is applied in the field of composite skirt processing and forming, can solve the problems of large negative mass of metal skirt, unfavorable mass ratio of solid rocket motor, and lifting, so as to reduce porosity, eliminate transition area, and reduce overall mass Effect

Pending Publication Date: 2022-03-01
湖北三江航天江北机械工程有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

Most of the existing solid rocket motors use metal skirts, and the negative mass of metal skirts is large, which is not conducive to the improvement of the mass ratio of solid rocket motors

Method used

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  • Forming method of special-shaped composite skirt of solid rocket engine
  • Forming method of special-shaped composite skirt of solid rocket engine
  • Forming method of special-shaped composite skirt of solid rocket engine

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Embodiment Construction

[0041] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the preferred embodiments of the present invention will be described below in conjunction with specific examples, but it should be understood that the accompanying drawings are for illustrative purposes only, and cannot be interpreted as an explanation of this patent. Restrictions; In order to better illustrate this embodiment, some parts in the drawings will be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, some known structures and their descriptions in the drawings may Omissions are understandable. The positional relationship described in the drawings is for illustrative purposes only, and should not be construed as a limitation on this patent.

[0042] Such as Figure 1-5 As shown, the present invention provides a kind of molding tooling for preparing the special-shaped composite skirt o...

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Abstract

The invention discloses a forming method for a special-shaped composite skirt of a solid rocket engine. The method comprises the following steps of S1, forming tool assembling and surface cleaning, S2, prepreg laying and pre-pressing before mold closing, S3, mold closing and prepreg laying after mold closing, S4, curing forming, S5, machining and S6, demolding and surface cleaning. The special-shaped (T-shaped) composite skirt of the solid rocket engine, which is novel in structure, stable in performance, high in bearing capacity and capable of meeting design requirements, is prepared through the forming method.

Description

technical field [0001] The invention relates to the field of composite skirt processing and molding, in particular to a molding method for a solid rocket motor special-shaped composite skirt. Background technique [0002] The connecting skirt of the solid rocket motor is used to connect the shell and the shell or to connect the shell and other components. It will be subjected to various loads (such as internal pressure, shear, axial pressure, etc.) during flight. One of the keys to improving the performance of solid rocket motors is how to improve the performance of the connecting skirt. Most of the existing solid rocket motors use metal skirts, and the negative mass of metal skirts is large, which is not conducive to the improvement of the mass ratio of solid rocket motors. The connecting skirt made of composite materials can not only reduce the structural weight on the premise of meeting or even exceeding the performance of the metal skirt, but also has a relatively short...

Claims

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Application Information

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IPC IPC(8): B29C70/34B29C70/54B29C69/00B29C37/02
CPCB29C70/345B29C70/545B29C69/001B29C37/02
Inventor 郭文波杨志超李一洋高李帅姚桂平
Owner 湖北三江航天江北机械工程有限公司
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