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A distributed containment casing and containment method

A distributed, casing technology, applied in mechanical equipment, engine components, machines/engines, etc., can solve problems such as poor upgradeability and versatility, difficult composite material processing technology, and inability to actively control blade-casing energy exchange. , to achieve convenient and quick upgrades, enhance versatility and maintainability, and increase inclusiveness.

Active Publication Date: 2022-05-03
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Composite materials have problems such as difficult overall processing technology. At the same time, the existing casing design concept cannot actively control the blade-casing energy exchange, and the upgradeability and versatility are poor.

Method used

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  • A distributed containment casing and containment method
  • A distributed containment casing and containment method
  • A distributed containment casing and containment method

Examples

Experimental program
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Embodiment Construction

[0018] Such as figure 1 As shown, a distributed containment casing in this embodiment includes several casing modules 1, fixing rings for fixing both ends of the casing module 1, Kevlar fiber bundles 2 and an airtight layer 5 for sewing the casing modules 1, Such as image 3 As shown, the casing module 1 is sequentially connected by sewing the Kevlar fiber bundle 2 to form the casing cylinder 8. Through the Kevlar fiber bundle 2, when the blade is lost and hits the inner wall of the casing, a piece of casing module 1 can be The deformation is transmitted to the entire casing body 8 , and the energy lost by the blades is shared by other casing modules 1 of the casing body 8 , improving the containment capacity of the whole casing. The casing module 1 is spliced ​​into the casing cylinder 8, which can conveniently and quickly upgrade the functional material of the casing, and increase the versatility and maintainability of the engine casing.

[0019] Such as figure 2 and F...

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PUM

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Abstract

The invention discloses a distributed containment casing, which comprises several casing modules and a fixing ring for fixing the casing modules, the casing modules are sequentially connected to form a casing casing, and the casing casing is sequentially sewed by Kevlar fiber bundles For each casing module of the body, the fixing rings are arranged at both ends of the casing body to fix the casing modules. Relying on the distributed casing module to gradually consume the energy of the lost blades, thereby enhancing the overall containment capacity of the casing, and the distributed casing can be spliced ​​by multiple casing modules, which can conveniently and quickly upgrade the functional materials of the casing, and enhance the performance of the aero-engine casing. Versatility and maintainability.

Description

technical field [0001] The invention relates to the containment design of an aero-engine case, in particular to a distributed containment case and a containment method thereof. Background technique [0002] Affected by high-cycle fatigue (HCF) and low-cycle fatigue (LCF), modern aeroengines still inevitably have blade fracture failures. The flying out of broken leaves will cause a huge impact load on the casing, which is likely to cause non-containment accidents. High-speed, high-energy non-contained debris may damage the aircraft's cabin, fuel tanks, hydraulic lines, and electrical control lines, seriously threatening aviation flight safety. Therefore, the inclusive research of aero-engine is of great significance to improve the safety, reliability and airworthiness of the engine. [0003] At this stage, aero-engine casings mostly adopt a full-ring or split-type structure. In order to ensure that the casing has sufficient inclusiveness and meet the requirements of aero-en...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01D25/24F01D25/00
CPCF01D25/24F01D25/005
Inventor 罗刚纪健刘璐璐陈伟赵振华
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS