Cabin of conical rotary body structure and manufacturing method of cabin

Abstract

The invention relates to a cabin of a conical rotary body structure and a manufacturing method of the cabin. The cabin comprises a front connecting frame and a rear connecting frame. A cone is connected between the front connecting frame and the rear connecting frame and provided with a front wing seat. The cone comprises a glass fiber layer, a carbon fiber layer, an aramid fiber layer, an ultra-high molecular weight polyethylene fiber layer and a basalt fiber layer, and resin layers are connected between the layers. The manufacturing method of the cabin comprises the steps that the structural sizes of the front connecting frame, the rear connecting frame and the cone are determined; finite element analysis calculation of the cone is carried out, and the structure of the cone is determined; the cone is formed, fiber winding materials of the cone are subjected to layering forming, and then post curing, appearance size machining, demolding and nondestructive testing are carried out; a fixture is manufactured; the front connecting frame and rear connecting frame at the two ends and the cone are assembled together on the fixture; and the cabin is inspected. The cabin has the beneficial effects of being light and high in loading ratio, manufacturing cost is reduced, and the wide application range of composites in the field of air ammunition is widened.

Description

technical field [0001] The invention relates to a cabin with a conical rotator structure and a manufacturing method thereof, in particular [0002] Disclosed is a cabin body of a cone-shaped rotary body structure of fiber-wound composite materials for aero-bullet load-bearing structures and a manufacturing method thereof. Background technique [0003] Guidance and navigation ammunition is a weapon system that has developed rapidly in my country in the past decade. The cabin is generally located in the middle of the weapon system, and contains important components such as electromagnetics and ammunition. It is an important dimensional part and load-bearing structural part. [0004] Based on the anisotropy of the composite material, the design calculation does not match the reality, and it is difficult to form the cone. Usually, the cabin body is made of aluminum alloy precision castings. Due to the characteristics of the process, this casting has problems such as cracking, e...

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Problems solved by technology

[0004] Based on the anisotropy of the composite material, the design calculation does not match the actual situation, plus the difficulty in forming the cone

Usually, the cabin body is made of aluminum alloy precision castings. Due to the characteristics of the process, this casting has problems such as cracking, engineering process difficulties, poor shape and dimension accuracy, and high cost. For example, in the development of the XXX aircraft bomb cabin, the aluminum alloy castings More than 85% of the products are out of tolerance

[0005] At present, advanced composite materials are widely used in the aerospace field, but they are rarely used as cabins, and they are only used as non-main load-bearing parts such as instrument cabins.

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