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Capture type ballistic impact resistant composite material fan casing and manufacturing method thereof

A fan casing and composite material technology, applied in liquid fuel engines, mechanical equipment, machines/engines, etc., can solve problems such as blade rupture, achieve the effects of controlling primary and secondary damage, easy capture, and enhancing structural reliability

Active Publication Date: 2021-02-26
AEROSPACE RES INST OF MATERIAL & PROCESSING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the requirements of the capture and containment characteristics and weight reduction of the containment case, there is an urgent need for a capture-type anti-ballistic impact composite fan case and its manufacturing method, so as to improve the structural efficiency of the case against ballistic impact and solve the problem of capture and containment of blade rupture

Method used

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  • Capture type ballistic impact resistant composite material fan casing and manufacturing method thereof
  • Capture type ballistic impact resistant composite material fan casing and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] a) The overall 2mm environmental protection layer of the casing is realized by automatic wire laying (single width 6.35mm), the number of tows is 8 tows, the angle selection is [±60 / 0], and the material used is M40J / 603B high modulus Carbon fiber reinforced high toughness epoxy resin prepreg;

[0054] b) Automatic laying of 5mm aramid fiber prepreg (F-8H3 / 603B) is used in the containment area as its compressive shear layer;

[0055] c) suction glue compaction;

[0056] d) Aramid fiber and carbon fiber mixed prepreg (F-T800 / 603B) is used in the containment area as a transition layer for winding and laying 2mm; the proportion of fibers used in the transition layer changes gradually in the direction between layers, and the fibers in the transition layer change from one to the other. A single fiber on one side becomes a blended fiber and then a single fiber on the other side;

[0057] e) M40J / 603B high-modulus carbon fiber reinforced high-toughness epoxy resin prepreg is ...

Embodiment 2

[0072] a) Lamination of the overall 2mm environmental protection layer of the casing is achieved by winding. The material used is M40J-XW / 603B high-modulus carbon fiber reinforced high-toughness epoxy resin prepreg, and the number of fiber tows is single tow;

[0073] b) Lay 5mm aramid prepreg (F-8H3 / 603B) in the containment area by winding method as its compressive shear layer;

[0074] c) suction glue compaction;

[0075] d) Aramid fiber and carbon fiber mixed prepreg (F-T800 / 603B) is used in the containment area as a transition layer for winding and laying 2mm; the proportion of fibers used in the transition layer changes gradually in the direction between layers, and the fibers in the transition layer change from one to the other. A single fiber on one side becomes a blended fiber and then a single fiber on the other side;

[0076] e) M40J-XW / 603B high-modulus carbon fiber reinforced high-toughness epoxy resin prepreg is used in the overall area of ​​the casing, and the t...

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Abstract

The invention provides a capture type ballistic impact resistant composite material fan casing and a manufacturing method thereof. The fan casing is of a revolving body structure and comprises two flange areas, two non-containing areas and a containing area, wherein the flange areas are located in the middle of the fan casing and are variable-thickness areas which are gradually thickened from twoends to the middle. The design of the fan casing focuses on the containing area, the containing area is an area mainly bearing impact after blade breakage resistance, a multi-phase structure corresponding to the containing area is adopted for a specific damage mode and mechanism of high-speed impact, the optimal mechanical property of each phase is used for coping with the impact, therefore, the ballistic impact resisting structural efficiency of the whole component is improved, a high-speed blade projectile body can be captured more easily through the whole structure, primary damage and secondary damage can be better controlled, the structural reliability is enhanced, and the capturing and containing problem of blade breakage is solved.

Description

technical field [0001] The invention belongs to the technical field of structural composite material manufacturing, and in particular relates to a captive ballistic impact-resistant composite fan casing and a manufacturing method thereof. Background technique [0002] The fan casing is the largest stationary component in a high bypass ratio aero-engine and one of the most important components of a large civil airliner. The fan blades of an aero-engine with a large bypass ratio rotate at high speed in the fan case. Under the impact of foreign objects or its own internal defects, once the fan blade fails (such as breaking and flying out), the fan case is required to be able to effectively contain the failed parts. Fan blade fragments, otherwise these fragments are likely to rush out of the engine, penetrate the casing, further expand the damage of the engine, and even penetrate the fuel tank, damage the fuselage or penetrate the aircraft, causing catastrophic consequences. Fr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/40F02K3/04B29C70/30B29C70/54
CPCF04D29/403F02K3/04B29C70/30B29C70/54
Inventor 孙建波刘永佼易凯杨智勇张建宝左小彪张艺萌
Owner AEROSPACE RES INST OF MATERIAL & PROCESSING TECH