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Title:
HIGHLY EFFICIENT IMPACT ENERGY ABSORBER THAT ABSORBS ENERGY BY MEANS OF COMPOSITE PIPE INWARD-FOLDED DAMAGE
Document Type and Number:
WIPO Patent Application WO/2017/206546
Kind Code:
A1
Abstract:
A highly efficient impact energy absorber that absorbs energy by means of a composite pipe inward-folded damage, comprising a damageable sleeve, a flattened sleeve (7), a cutter (3) and a positioning pipe (2). The cutter is located inside the damageable sleeve, the lower end of the cutter being connected to the inner flange (9) of the damageable sleeve and the upper end of the cutter being connected to the positioning pipe. The positioning pipe is located inside the damageable sleeve and tightly connected to the inner wall of the damageable sleeve, and the upper surface of the positioning pipe contacts with the cutter. The disruptive sleeve, the positioning pipe and a composite pipe (1) are respectively provided with corresponding pin holes (5), and the three are tightly bonded together by means of pins. The energy absorber can function as a structural member in a normal working state, and has the advantages that, when being damaged by collision, the composite materials are sufficiently damaged, the energy absorption ratio is large, and the energy absorber is only subject to an axial force in the damage process of the composite materials, will not bend and break, remains intact structurally, and has no debris overflow.

Inventors:
YU, Zhefeng (Room 1422, Aero-Building No. 800 Dongchuan Road, Minhang District, Shanghai 0, 200240, CN)
FU, Yi (Room 1422, Aero-Building No. 800 Dongchuan Road, Minhang District, Shanghai 0, 200240, CN)
Application Number:
CN2017/073713
Publication Date:
December 07, 2017
Filing Date:
February 16, 2017
Export Citation:
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Assignee:
SHANGHAI JIAOTONG UNIVERSITY (No. 800 Dongchuan Road, Minhang District, Shanghai 0, 200240, CN)
International Classes:
B60R19/02; B61F19/04
Foreign References:
CN105034998A2015-11-11
CN201980172U2011-09-21
CN105905056A2016-08-31
CN103818402A2014-05-28
DE19803156C11999-08-12
US6062355A2000-05-16
Attorney, Agent or Firm:
SHANGHAI KESHENG INTELLECTUAL PROPERTY AGENCY LTD. (Unit 18F, Cross Region PlazaNo. 899 Lingling Road, Xuhui District, Shanghai 0, 200030, CN)
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