Title:
CONNECTION STRUCTURE FOR CONNECTING COMPOSITE-MATERIAL AIRCRAFT WING SPAR TO WING ROOT REGION
Document Type and Number:
WIPO Patent Application WO/2020/107532
Kind Code:
A1
Abstract:
A connection structure for connecting a composite-material aircraft wing spar to a wing root region. The wing spar is C-shaped, and consists of a wing spar web (1), a wing spar upper edge bar (2.1), and a wing spar lower edge bar (2.2). The composite-material wing spar is fabricated by means of manual laying, automated tape laying in conjunction with hot diaphragm forming, automated fiber laying, etc. The wing spar is connected to both an outer wing wall plate and a connector by means of fasteners. At a connection position of the wing spar and wing root, the wing spar is truncated in advance according to connection requirements so as not to be directly connected to the wing root, a wing rib, or a central wing spar. In addition, cutting is performed on an end portion, and an edge region is rounded in order to prevent stress being concentrated at a region having a variable cross-section region during load transfer. The connection structure simplifies a force transmission path of a web, improves the load transferring efficiency of the web, reduces the number of fasteners, and reduces assembly difficulty.
Inventors:
XIE WEN XUAN (CN)
SHEN YU FENG (CN)
GAO JU BIN (CN)
ZHANG FA (CN)
XIAO ZHI PENG (CN)
LIANG BIN (CN)
JI SHAO HUA (CN)
WANG DONG (CN)
LIU CHUAN JUN (CN)
SHEN YU FENG (CN)
GAO JU BIN (CN)
ZHANG FA (CN)
XIAO ZHI PENG (CN)
LIANG BIN (CN)
JI SHAO HUA (CN)
WANG DONG (CN)
LIU CHUAN JUN (CN)
Application Number:
PCT/CN2018/120276
Publication Date:
June 04, 2020
Filing Date:
December 11, 2018
Export Citation:
Assignee:
BEIJING AERONAUTICAL SCIENCE & TECH RESEARCH INSTITUTE COMMERCIAL AIRCRAFT CORPORATION OF CHINA (CN)
COMMERCIAL AIRCRAFT CORP CN (CN)
COMMERCIAL AIRCRAFT CORP CN (CN)
International Classes:
B64C3/18
Foreign References:
| CN207328810U | 2018-05-08 | |||
| CN207328810U | 2018-05-08 | |||
| CN207748010U | 2018-08-21 | |||
| CN205931233U | 2017-02-08 | |||
| CN107757873A | 2018-03-06 | |||
| CN105539812A | 2016-05-04 | |||
| CN203306222U | 2013-11-27 | |||
| US9957036B2 | 2018-05-01 |
Attorney, Agent or Firm:
BEI JING JINZHIPUHUA INTELLECTUAL PROPERTY AGENCY CO.LTD et al. (CN)
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