CN110498034A - A kind of opening stress concentration slows down structure - Google Patents
A kind of opening stress concentration slows down structure Download PDFInfo
- Publication number
- CN110498034A CN110498034A CN201910792683.1A CN201910792683A CN110498034A CN 110498034 A CN110498034 A CN 110498034A CN 201910792683 A CN201910792683 A CN 201910792683A CN 110498034 A CN110498034 A CN 110498034A
- Authority
- CN
- China
- Prior art keywords
- covering
- opening
- slows down
- bulkhead
- stress concentration
- 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.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C1/00—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
- B64C1/06—Frames; Stringers; Longerons ; Fuselage sections
- B64C1/061—Frames
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C1/00—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
- B64C1/06—Frames; Stringers; Longerons ; Fuselage sections
- B64C1/065—Spars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C1/00—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
- B64C1/06—Frames; Stringers; Longerons ; Fuselage sections
- B64C1/12—Construction or attachment of skin panels
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Laser Beam Processing (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The application belongs to bulkhead opening stress and slows down design field, and in particular to a kind of opening stress concentration slows down structure, comprising: covering；Stringer is arranged on covering；Bulkhead is arranged on covering, has the opening passed through for stringer between covering；The two sides of opening have notch.It opens up notch in the two sides of bulkhead upper opening, transmits when load transmission is at this along notch, according to Saint Venant's principle, stress is diffused, so that the stress decrease of bulkhead and covering junction, avoids the generation cracked.
Description
Technical field
The application belongs to bulkhead opening stress and slows down design field, and in particular to a kind of opening stress concentration slows down knot
Structure.
Background technique
The stringers for being provided with lateral bulkhead and longitudinal direction on aircraft skin more, wherein in the intervening portion of bulkhead and stringer,
Opening is offered on bulkhead to pass through for stringer, in the opening due to the presence of stringer, can not arrange striking/receipts arc plate, is being incited somebody to action
There is striking/receipts arc region residual when bulkhead is soldered on aircraft skin at this, causes near zone welding bead existing defects, influence to weld
Quality is connect, in addition, being the junction of bulkhead weldering and aircraft skin at this, there are rigidity mutation, and stress is caused to be concentrated, and cause at this
It is easy to appear crackle.
The application is proposed in view of the drawbacks described above of the prior art.
Summary of the invention
The purpose of the application is to provide a kind of opening stress concentration and slows down structure, in overcoming or alleviated by the prior art extremely
The defect of few one side.
The technical solution of the application is:
A kind of opening stress concentration slows down structure, comprising:
Covering；
Stringer is arranged on covering；
Bulkhead is arranged on covering, has the opening passed through for stringer between covering；The two sides of opening have notch.
According at least one embodiment of the application, bulkhead is welded on covering.
According at least one embodiment of the application, bulkhead is welded on covering using dual-beam laser welding technique.
According at least one embodiment of the application, the notch semicircular in shape for the two sides that are open.
According at least one embodiment of the application, the radius of the notch for the side that is open is R, and R is deposited not less than the side that is open
In the length of the welding bead of defect.
According at least one embodiment of the application, the notch for the side that is open is at a distance from weld seam between covering apart from bulkhead
Twice of h, h not less than the side welding bead melt pool height that is open.
According at least one embodiment of the application, stringer is welded on covering.
According at least one embodiment of the application, stringer is welded on covering using dual-beam laser welding technique.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of existing partition, stringer and covering cooperation；
Fig. 2 is that opening stress provided by the embodiments of the present application concentrates the structural schematic diagram for slowing down structure；
Wherein:
1- covering；2- stringer；3- partition；4- notch.
Specific embodiment
The application is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining related application, rather than the restriction to this application.It also should be noted that in order to
Convenient for description, part relevant to the application is illustrated only in attached drawing.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
It should be noted that in the description of the present application, term " center ", "upper", "lower", "left", "right", "vertical",
The direction of the instructions such as "horizontal", "inner", "outside" or the term of positional relationship are direction based on the figure or positional relationship, this
It is intended merely to facilitate description, rather than indication or suggestion device or element must have a particular orientation, with specific orientation
Construction and operation, therefore should not be understood as the limitation to the application.In addition, term " first ", " second ", " third " are only used for retouching
Purpose is stated, relative importance is not understood to indicate or imply.
In addition it is also necessary to explanation, in the description of the present application unless specifically defined or limited otherwise, term " peace
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.To those skilled in the art, it can understand that above-mentioned term exists as the case may be
Concrete meaning in the application.
1 to Fig. 2 the application is described in further details with reference to the accompanying drawing.
A kind of opening stress concentration slows down structure characterized by comprising
Covering 1；
Stringer 2 is arranged on covering 1；
Bulkhead 3 is arranged on covering 1, has the opening passed through for stringer between covering 1；The two sides of opening, which have, to be lacked
Mouth 4.
Structure is slowed down for the concentration of opening stress disclosed in above-described embodiment, it will be appreciated by those skilled in the art that
It is to open up notch 4 in the two sides of 3 upper opening of bulkhead, is transmitted when load transmission is at this along notch 4, according to St.Venant original
Reason, stress is diffused, so that the stress decrease of bulkhead 3 and 1 junction of covering, avoids the generation cracked.
In some alternative embodiments, bulkhead 3 is welded on covering 1.
In some alternative embodiments, bulkhead 3 is welded on covering 1 using dual-beam laser welding technique.
In some alternative embodiments, be open 4 semicirculars in shape of notch of two sides, transmits and answers to improve load at this
The effect of power diffusion.
In some alternative embodiments, be open side notch 4 radius be R, R not less than be open the side existing defects
Welding bead length.
In some alternative embodiments, be open side notch 4 apart from bulkhead 3 between covering 1 at a distance from weld seam for h, h
Not less than twice of the side welding bead melt pool height that is open, will be melted at this to avoid welding bead molten bath.
In some alternative embodiments, stringer 2 is welded on covering 1.
In some alternative embodiments, stringer 2 is welded on covering 1 using dual-beam laser welding technique.
So far, it has been combined preferred embodiment shown in the drawings and describes the technical solution of the application, still, this field
Technical staff is it is easily understood that the protection scope of the application is expressly not limited to these specific embodiments.Without departing from this
Under the premise of the principle of application, those skilled in the art can make equivalent change or replacement to the relevant technologies feature, these
Technical solution after change or replacement is fallen within the protection scope of the application.
Claims (8)
1. a kind of opening stress concentration slows down structure characterized by comprising
Covering (1)；
Stringer (2) is arranged on the covering (1)；
Bulkhead (3) is arranged on the covering (1), has the opening passed through for stringer between the covering (1)；It is described to open
The two sides of mouth have notch (4).
2. opening stress concentration according to claim 1 slows down structure, which is characterized in that
The bulkhead (3) is welded on the covering (1).
3. opening stress concentration according to claim 2 slows down structure, which is characterized in that
The bulkhead (3) is welded on the covering (1) using dual-beam laser welding technique.
4. opening stress concentration according to claim 2 slows down structure, which is characterized in that
Notch (4) semicircular in shape of the opening two sides.
5. opening stress concentration according to claim 4 slows down structure, which is characterized in that
The radius of the notch (4) of the opening side is R, length of the R not less than the welding bead of the side existing defects that are open.
6. opening stress concentration according to claim 3 slows down structure, which is characterized in that
The notch (4) of the opening side is h at a distance from weld seam between the covering (1) apart from the bulkhead (3), and h is not less than
Twice of the side welding bead melt pool height that is open.
7. opening stress concentration according to claim 1 slows down structure, which is characterized in that
The stringer (2) is welded on the covering (1).
8. opening stress concentration according to claim 2 slows down structure, which is characterized in that
The stringer (2) is welded on the covering (1) using dual-beam laser welding technique.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910792683.1A CN110498034B (en) | 2019-08-26 | 2019-08-26 | Stress concentration relieving structure for opening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910792683.1A CN110498034B (en) | 2019-08-26 | 2019-08-26 | Stress concentration relieving structure for opening |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110498034A true CN110498034A (en) | 2019-11-26 |
| CN110498034B CN110498034B (en) | 2022-07-15 |
Family
ID=68589731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910792683.1A Active CN110498034B (en) | 2019-08-26 | 2019-08-26 | Stress concentration relieving structure for opening |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110498034B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1177561A (en) * | 1996-10-07 | 1998-04-01 | 王新云 | Prestressing structure of aircraft and making method thereof |
| US20080210824A1 (en) * | 2006-10-13 | 2008-09-04 | Airbus Deutschland Gmbh | Connecting structure for an aircraft or spacecraft and method for producing the same |
| CN202481302U (en) * | 2012-02-02 | 2012-10-10 | 哈尔滨飞机工业集团有限责任公司 | Stringer end head structure of large-curvature wall plate |
| CN102991665A (en) * | 2011-09-08 | 2013-03-27 | 空中客车运营简化股份公司 | Frame element of an aircraft fuselage |
-
2019
- 2019-08-26 CN CN201910792683.1A patent/CN110498034B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1177561A (en) * | 1996-10-07 | 1998-04-01 | 王新云 | Prestressing structure of aircraft and making method thereof |
| US20080210824A1 (en) * | 2006-10-13 | 2008-09-04 | Airbus Deutschland Gmbh | Connecting structure for an aircraft or spacecraft and method for producing the same |
| CN102991665A (en) * | 2011-09-08 | 2013-03-27 | 空中客车运营简化股份公司 | Frame element of an aircraft fuselage |
| CN202481302U (en) * | 2012-02-02 | 2012-10-10 | 哈尔滨飞机工业集团有限责任公司 | Stringer end head structure of large-curvature wall plate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110498034B (en) | 2022-07-15 |
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