Title:
ELECTROMAGNETIC WAVE ABSORPTION TECHNOLOGY-BASED MULTIFUNCTIONAL HEATING SANDWICH COMPOSITE MATERIAL APPLICABLE TO LARGE WING STRUCTURE, AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2023/033247
Kind Code:
A1
Abstract:
The present invention relates to an electromagnetic wave absorption technology-based multifunctional heating sandwich composite material applicable to a large wing structure, and a method for manufacturing same. In particular, the present invention relates to a composite material which is based on an electromagnetic wave absorption heating mechanism converting electromagnetic waves into thermal energy, and a method for manufacturing same. The present invention provides an electromagnetic wave absorption technology-based multifunctional heating sandwich composite material which is applicable to a large wing structure, and is characterized by comprising: a face material formed to a predetermined thickness on the top or bottom of the composite material to absorb electromagnetic waves applied from the outside; and a honeycomb core formed in a hexagonal column shape having a predetermined thickness by using electroless-plated metal dielectric fibers that have electrical conductivity, wherein the honeycomb core converts, into thermal energy, the power loss of electromagnetic waves that have penetrated from the face material, and dissipates the electromagnetic waves by means of periodic changes in impedance within a preset target frequency band, thereby reducing the electromagnetic waves that are reflected.
Inventors:
NAM YOUNG WOO (KR)
KWEON JIN HWE (KR)
CHOE HYEON SEOK (KR)
LEE JUN SUNG (KR)
KWEON JIN HWE (KR)
CHOE HYEON SEOK (KR)
LEE JUN SUNG (KR)
Application Number:
PCT/KR2021/017027
Publication Date:
March 09, 2023
Filing Date:
November 18, 2021
Export Citation:
Assignee:
NAT UNIV GYEONGSANG IACF (KR)
International Classes:
B32B7/025; B32B3/12; B64D15/00; F03D80/40
Foreign References:
| KR102199557B1 | 2021-01-07 | |||
| KR20140040526A | 2014-04-03 | |||
| KR20200008718A | 2020-01-29 | |||
| KR20130081947A | 2013-07-18 | |||
| KR20120120579A | 2012-11-02 |
Other References:
CHOE, HYEON-SEOK; CHOI, WON-HO; YOUNG-WOO, NAM: "Multi-functional Sandwich Composite Structure with Microwave Absorption Heating", KSAS 2021 KOREA AEROSPACE SOCIETY SPRING CONFERENCE, KOREA AEROSPACE SOCIETY, 9 July 2021 (2021-07-09), pages 637 - 638, XP009544298
CHOE, Hyeon-Seok et al. Multi-functional honeycomb core sandwich composite with microwave heating elements. 24th International Conference on Composite Structures. 14-16 June 2021, pp. 48 and 49.
CHOE, HYEON-SEOK ET AL.: "Multifunctional Honeycomb Core Sandwich Composite Structure with Heating Function", 2020 SASE FALL CONFERENCE, 11 December 2020 (2020-12-11), pages 51
CHOE, Hyeon-Seok et al. Multi-functional honeycomb core sandwich composite with microwave heating elements. 24th International Conference on Composite Structures. 14-16 June 2021, pp. 48 and 49.
CHOE, HYEON-SEOK ET AL.: "Multifunctional Honeycomb Core Sandwich Composite Structure with Heating Function", 2020 SASE FALL CONFERENCE, 11 December 2020 (2020-12-11), pages 51
Attorney, Agent or Firm:
PCR INTELLECTUAL PROPERTY LAW FIRM (KR)
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