A prefabricated body of a contoured structural frame and its preparation method and application

By designing the topological structure and adopting reasonable box frame shape and quantity, the problems of complex structure prefabricated body forming process and low process stability are solved, and the preparation of contoured complex structures is achieved, with excellent mechanical properties and high process stability, and is suitable for aerospace and defense and military industries.

CN118953706BActive Publication Date: 2025-03-28JIANGSU TIANNIAO HIGH TECH
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Patent Information

Application Number
CN202411120222.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-08-15
Publication Date
2025-03-28
Estimated Expiration
2044-08-15

AI Technical Summary

Technical Problem

The formation process of complex structure prefabricated bodies is complex, the technology is difficult, the process stability is low, and the preparation period is long, which affects the mechanical properties of composite materials and has become an important factor restricting the development of aerospace and defense and military industries.

Method used

Design the topological structure and use reasonable box frame shapes and quantity to prepare special-shaped frame prefabricated bodies. Through partitioned design and zero-to-complete combination preparation technology, the preparation of contour complex structures is realized.

Benefits of technology

It has achieved the preparation of prefabricated complex structures, excellent mechanical properties, short forming cycle and high process stability. It is suitable for products with large sizes and complex structures, and has broad application prospects.

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Abstract

The present invention provides a prefabricated body for a contoured structure frame and a preparation method and application thereof. The prefabricated body for a contoured structure frame comprises a first X-direction prefabricated body segment, a second Y-direction prefabricated body segment, a third X-direction prefabricated body segment, a fourth arc-shaped prefabricated body segment and a fifth Y-direction prefabricated body segment, the ends of which are sequentially connected; the fourth arc-shaped prefabricated body segment protrudes from the first X-direction prefabricated body segment in a direction pointing to the third X-direction prefabricated body segment; the first X-direction prefabricated body segment, the second Y-direction prefabricated body segment, the third X-direction prefabricated body segment and the fifth Y-direction prefabricated body segment each independently comprise a rectangular box frame, and the fourth arc-shaped prefabricated body segment comprises a fan-shaped box frame. The present invention can obtain a contoured structure frame prefabricated body with a special shape and structure by combining a rectangular box frame and a fan-shaped box frame, and can realize low-cost and short-cycle forming of a complex structure frame beam prefabricated body, and has broad application prospects.
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