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CN109606619A - A kind of cargo deck stringer posting structure - Google Patents

A kind of cargo deck stringer posting structure Download PDF

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Publication number
CN109606619A
CN109606619A CN201811319521.8A CN201811319521A CN109606619A CN 109606619 A CN109606619 A CN 109606619A CN 201811319521 A CN201811319521 A CN 201811319521A CN 109606619 A CN109606619 A CN 109606619A
Authority
CN
China
Prior art keywords
stringer
cargo deck
brace
jointing
deck stringer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811319521.8A
Other languages
Chinese (zh)
Inventor
李国彬
王康宁
孙虎彬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xian Aircraft Design and Research Institute of AVIC
Original Assignee
Xian Aircraft Design and Research Institute of AVIC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xian Aircraft Design and Research Institute of AVIC filed Critical Xian Aircraft Design and Research Institute of AVIC
Priority to CN201811319521.8A priority Critical patent/CN109606619A/en
Publication of CN109606619A publication Critical patent/CN109606619A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64CAEROPLANES; HELICOPTERS
    • B64C1/00Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
    • B64C1/18Floors
    • B64C1/20Floors specially adapted for freight

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)

Abstract

The present invention relates to field of airplane structure, specially a kind of cargo deck stringer posting structure.It include: cargo deck stringer, brace, jointing, diffuser, frame and stringer;Cargo deck stringer one end is connect with frame, and intermediate position is hinged by bolt and brace, and the brace other end is hinged by bolt and jointing, and jointing facade is vertical with frame to be fixed, and bottom surface is fixed with diffuser, and the diffuser is fixed with stringer vertical elevation.The formation of triangle robust structure and brace only by the application of axial load so that cargo deck stringer reinforcement structure is simple, light-weight, good manufacturability, it is at low cost, be readily produced and assemble.

Description

A kind of cargo deck stringer posting structure
Technical field
The present invention relates to field of airplane structure, specially a kind of cargo deck stringer posting structure.
Background technique
Cargo deck stringer receiving longitudinal loading ability is poor, need to disperse be transmitted on airframe structure by longitudinal loading.It is existing The most longitudinal loading of aircraft is transmitted by sidewall paneling, and posting path is remote, low efficiency, and adopts mostly with lower wall panels connection reinforcing structure With fixed connection, structure is complicated, weight weight.The present invention is directed to the longitudinal loading of cargo deck stringer is transmitted to underbelly In structure.There are difference in height between cargo deck stringer and underbelly, load is transmitted in underbelly structure in parallel and is easy Additional bending moment is generated, increases the complexity of underbelly structural bearing, and structural strengthening is made due to the increase of load Weight increases.Therefore it is required that it is direct, high-efficient to make every effort to power transmission when load transmission, and it is simple and reliable for structure, additional bending moment is not transmitted, into And influence the arrangement of original structure.
Summary of the invention
The present invention is directed to which the longitudinal loading of cargo deck stringer to be transmitted in fuselage stringer structure, while making every effort to posting road Diameter is short, high-efficient.The characteristics of two power rod structures only pass axial force is taken full advantage of, both ensure that cargo deck stringer longitudinal loading It can be transmitted on airframe structure, in turn avoid the generation of additional bending moment, simplify posting form and structure, alleviate aircaft configuration Weight.
Technical solution
A kind of cargo deck stringer posting structure, include: cargo deck stringer [1], brace [2], jointing [3], Diffuser [4], frame [5] and stringer [6];Cargo deck stringer [1] one end is connect with frame [5], intermediate position by bolt with Hingedly, brace [2] other end passes through bolt and jointing [3] hingedly to brace [2], jointing [3] facade and frame [5] Vertical fixed, bottom surface and diffuser [4] are fixed, and the diffuser [4] is fixed with stringer [6] vertical elevation.
Brace [2] both ends are the aperture of monaural list.Structure is simple, guarantees axial load transmitting, the not production of additional bending moment It is raw.
The jointing [3] is set as L-type Intermediate Gray stud.While guaranteeing to connect with brace [2], and also and frame [4] and lower wall panels [5] are fixed.
The diffuser [4] is set as spill.Ensure load dispersion be transmitted to stringer [6] on.
Stud is arranged in the back side of the frame [5].Ensure brace [2] it is vertical it is discrete by stud pass through tension and compression bear.
Brace [2] and stringer [6] are formed by angle and should be less than 45 °.Ensure that cargo deck stringer [1] longitudinal loading is big Decomposed is longitudinal Tensile or Compressive Loading of stringer [6].
Technical effect
Compared with traditional fixed connection structure, this invention simplifies cargo deck longitudinal beam structure and connection structure by Power situation, so that cargo deck stringer, brace, jointing, diffuser, frame form a firm triangular structure.Goods Cabin longitudinal floor beam longitudinal loading is transmitted on jointing by brace, is transmitted to stringer by diffuser, and brace axis It is born to power in vertical component by mount structure.The formation of triangle robust structure and brace are only answered by axial load With so that cargo deck stringer reinforcement structure is simple, light-weight, good manufacturability, it is at low cost, be readily produced and assemble.
Detailed description of the invention
Fig. 1 is the longitudinally reinforced structure chart of cargo deck stringer
Fig. 2 is the longitudinally reinforced structure rearview of cargo deck stringer
Wherein: 1- cargo deck stringer 2- brace 3- jointing 4- diffuser 5- frame 6- stringer
Specific embodiment
Cargo deck stringer reinforcement structure passes through cargo deck stringer [1], brace [2], jointing [3], diffuser [4], frame [5], stringer [6] form firm triangular structure.
Brace [2] both ends and longitudinal floor beam [1], jointing [3] are subjected only to axial load by single bolted splice Lotus;Jointing [3] is affixed with frame [4] diffuser [5], and diffuser [5] and stringer [6] are affixed.Frame [4] back side cloth Reinforcing rib is set, the transmitting for vertical load.Cargo deck stringer [1] longitudinal loading is transmitted to connection by brace [2] and connects It on head [3], is then passed on diffuser [4], is finally born by stringer [6], and brace [2] axial load is on vertical Component is then born by the reinforcing rib in frame [4] structure.

Claims (6)

1. a kind of cargo deck stringer posting structure includes: cargo deck stringer [1], brace [2], jointing [3], expands Loose mail [4], frame [5] and stringer [6];It is characterized by: cargo deck stringer [1] one end is connect with frame [5], intermediate position is logical Cross bolt and brace [2] hingedly, brace [2] other end passes through bolt and jointing [3] hingedly, and jointing [3] is vertical Face is vertical with frame [5] fixed, and bottom surface and diffuser [4] are fixed, and the diffuser [4] is fixed with stringer [6] vertical elevation.
2. a kind of cargo deck stringer posting structure according to claim 1, it is characterised in that: brace [2] both ends are Monaural list aperture.
3. a kind of cargo deck stringer posting structure according to claim 1, it is characterised in that: the jointing [3] It is set as L-type Intermediate Gray stud.
4. a kind of cargo deck stringer posting structure according to claim 1, it is characterised in that: the diffuser [4] sets It is set to spill.
5. a kind of cargo deck stringer posting structure according to claim 1, it is characterised in that: the back side of the frame [5] Stud is set.
6. a kind of cargo deck stringer posting structure according to claim 1, it is characterised in that: brace [2] and stringer [6] being formed by angle should be less than 45 °.
CN201811319521.8A 2018-11-07 2018-11-07 A kind of cargo deck stringer posting structure Pending CN109606619A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811319521.8A CN109606619A (en) 2018-11-07 2018-11-07 A kind of cargo deck stringer posting structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811319521.8A CN109606619A (en) 2018-11-07 2018-11-07 A kind of cargo deck stringer posting structure

Publications (1)

Publication Number Publication Date
CN109606619A true CN109606619A (en) 2019-04-12

Family

ID=66003125

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811319521.8A Pending CN109606619A (en) 2018-11-07 2018-11-07 A kind of cargo deck stringer posting structure

Country Status (1)

Country Link
CN (1) CN109606619A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111017188A (en) * 2019-12-24 2020-04-17 中国航空工业集团公司西安飞机设计研究所 Aircraft floor longeron course passes carries structure
CN111232181A (en) * 2020-03-09 2020-06-05 中国商用飞机有限责任公司 Load transfer mechanism for cargo hold of civil passenger plane
US20210237878A1 (en) * 2018-04-23 2021-08-05 Moose Manufacturing Llc System and Method for Mounting Items to an Aircraft Floor

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101952167A (en) * 2008-02-07 2011-01-19 空中客车运营有限公司 Floor system for a fuselage section of an aircraft
CN105836155A (en) * 2016-03-18 2016-08-10 中国飞机强度研究所 Double-layer floor beam loading device for aircraft structural strength test
CN106672197A (en) * 2016-12-26 2017-05-17 中国航空工业集团公司西安飞机设计研究所 Cargo hold floor longitudinal beam and blocking wall connecting structure
US20180065728A1 (en) * 2016-07-08 2018-03-08 Creative Solutions, Inc. Protective covers for use with aircraft cargo holds
CN207631469U (en) * 2017-12-20 2018-07-20 成都正通航空设备有限责任公司 A kind of narrow body aircraft cargo bay floor component

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101952167A (en) * 2008-02-07 2011-01-19 空中客车运营有限公司 Floor system for a fuselage section of an aircraft
CN105836155A (en) * 2016-03-18 2016-08-10 中国飞机强度研究所 Double-layer floor beam loading device for aircraft structural strength test
US20180065728A1 (en) * 2016-07-08 2018-03-08 Creative Solutions, Inc. Protective covers for use with aircraft cargo holds
CN106672197A (en) * 2016-12-26 2017-05-17 中国航空工业集团公司西安飞机设计研究所 Cargo hold floor longitudinal beam and blocking wall connecting structure
CN207631469U (en) * 2017-12-20 2018-07-20 成都正通航空设备有限责任公司 A kind of narrow body aircraft cargo bay floor component

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
孙洁琼: "民用飞机客舱地板横梁结构研究", 《民用飞机设计与研究》 *
张卫文等: "飞机地板常用结构设计与传力分析", 《中国科技信息》 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210237878A1 (en) * 2018-04-23 2021-08-05 Moose Manufacturing Llc System and Method for Mounting Items to an Aircraft Floor
US11772796B2 (en) * 2018-04-23 2023-10-03 Moose Manufacturing Llc System and method for mounting items to an aircraft floor
CN111017188A (en) * 2019-12-24 2020-04-17 中国航空工业集团公司西安飞机设计研究所 Aircraft floor longeron course passes carries structure
CN111232181A (en) * 2020-03-09 2020-06-05 中国商用飞机有限责任公司 Load transfer mechanism for cargo hold of civil passenger plane
CN111232181B (en) * 2020-03-09 2021-09-28 中国商用飞机有限责任公司 Load transfer mechanism for cargo hold of civil passenger plane

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PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20190412