CN109519692A - A kind of L-type cornual plate intensifying method - Google Patents
A kind of L-type cornual plate intensifying method Download PDFInfo
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- CN109519692A CN109519692A CN201811476785.4A CN201811476785A CN109519692A CN 109519692 A CN109519692 A CN 109519692A CN 201811476785 A CN201811476785 A CN 201811476785A CN 109519692 A CN109519692 A CN 109519692A
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- China
- Prior art keywords
- cornual plate
- type
- point
- muscle
- straight muscle
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16S—CONSTRUCTIONAL ELEMENTS IN GENERAL; STRUCTURES BUILT-UP FROM SUCH ELEMENTS, IN GENERAL
- F16S5/00—Other constructional members not restricted to an application fully provided for in a single class
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
The invention belongs to technical field of aircraft structure design, and in particular to a kind of L-type cornual plate intensifying method.This method is to increase straight muscle among the cornual plate of L-type, straight muscle is cut into concave curve shape, the concave curve determines method are as follows: cut-off muscle free margins midpoint, to the distance of L-type cornual plate inflection rib midpoint direction offset 15%, it determines point A, straight muscle and L-type cornual plate both sides end face tie point is identified as point B and point C, according to A, 3 points of B, C determine concave curve shape.Using a kind of structure that L-type cornual plate intensifying method obtains proposed by the present invention, intensity is improved, and weight mitigates significantly；The reinforcement shape of concave curve can preferably reduce cornual plate stress.
Description
Technical field
The invention belongs to technical field of aircraft structure design, and in particular to a kind of L-type cornual plate intensifying method.
Background technique
L-type cornual plate is widely used in aircraft, commonly used in two components of connection.Generally use the mode of reinforcement to cornual plate into
Row is strengthened, and the prior art is strengthened in the form of straight muscle, does not use other shapes of reinforcement form, does not also probe into
Cross the reinforcement shape that strengthening effect is best and weight is most light.
Existing L-type cornual plate intensifying method is usually to increase cornual plate thickness or reinforcement.Angle can be increased by increasing cornual plate thickness
The intensity of piece, but the increase of weight is also brought simultaneously, reinforcement is the current best method for increasing cornual plate intensity, can only be increased
Sub-fraction weight and the intensity for greatly increasing cornual plate, but existing reinforcement mode is straight muscle, does not explore other reinforcements
The superiority and inferiority of shape does not find optimal reinforcement form yet.In airplane design, this connector of cornual plate is in daily use, and usually has several
Hundred, therefore this intensifying method can bring serious weight cost to airplane design.
Summary of the invention
Goal of the invention: proposing a kind of L-type cornual plate intensifying method, greatly increases cornual plate weight to solve existing intensifying method
The problem of.
Technical solution: a kind of L-type cornual plate intensifying method increases straight muscle among the cornual plate of L-type, straight muscle is cut into concave curved
Wire shaped, the concave curve determine method are as follows: cut-off muscle free margins midpoint, it is inclined to L-type cornual plate inflection rib midpoint direction
15% distance is moved, determines point A, straight muscle and L-type cornual plate both sides end face tie point are identified as point B and point C, according to A, B,
3 points of C determine concave curve shape.
Advantageous effects: using a kind of structure that L-type cornual plate intensifying method obtains proposed by the present invention, and intensity improves,
Weight mitigates significantly；The reinforcement shape of concave curve can preferably reduce cornual plate stress, improve cornual plate intensity, while than straight muscle
Weight is lighter.
Detailed description of the invention
Fig. 1 is concave curve reinforcement cornual plate cutting schematic diagram；
Fig. 2 is concave curve reinforcement cornual plate schematic diagram；
Fig. 3 is various reinforcement schematic shapes.
Specific embodiment
The present invention obtains a kind of L-type cornual plate intensifying method, increases straight muscle among the cornual plate of L-type, straight muscle is cut into recessed
Curve shape, the concave curved such as parabola, the parabolical determining method are as follows: cut-off muscle free margins midpoint,
To the distance of L-type cornual plate inflection rib midpoint direction offset 15%, point A is determined, by straight muscle and L-type cornual plate both sides end face tie point point
It is not determined as point B and point C, according to A, 3 points of B, C determine parabolic shape.In order to further mitigate weight, straight muscle is closed using aluminium
Golden material is made, and straight muscle can be integrally formed with cornual plate, can also be integrated by being welded to connect.
In order to verify the validity of the above method, the cornual plate of the following different reinforcement shape of the present invention carries out Experimental Comparison.With
On the basis of the benchmark architecture cornual plate of 2mm thickness, design about cornual plate symmetrical configuration, thickness is the reinforcement of different shapes of 1mm
Rib.The reinforcement shape studied is respectively straight muscle, concave arc muscle, concave curve muscle, lower half muscle, upper half muscle, and convex curve muscle is various
Reinforcement shape is shown in Fig. 3.
Identical boundary condition is applied to the cornual plate of different reinforcement shape and load, the maximum for obtaining every kind of reinforcement cornual plate are answered
Power, then make comparisons with the maximum stress of cornual plate in the case of no reinforcement, increase situation further according to the weight of every kind of reinforcement cornual plate, obtains
Table 1.
1 different reinforcement shape cornual plate calculated result of table
By the correlation data of table 1 it is found that concave curve and figure curve reinforcement form can reduce to the greatest extent cornual plate most
Big stress increases cornual plate intensity, and more preferable than straight muscle shape effect.But the quality of convex curve increases two that ratio is concave curve
Times, it is contemplated that loss of weight problem and assembly problem (convex curve reinforcement may generate Assembly Interference) in airplane design, concave curve
Reinforcement shape is to strengthen the optimum shape of cornual plate.Concave curve reinforcement shape can reduce the interference situation occurred in assembling process.
The present invention has carried out cutting process to stiffening part under the premise of cornual plate reinforcement, and stiffening part is cut into difference
Shape, cornual plate weight can be mitigated in the case where not reducing cornual plate intensity, improve the posting efficiency of cornual plate, and to difference plus
The cornual plate of muscle shape compares, and determines optimal cornual plate reinforcement shape.The present invention has structure simple, easily manufactured, subtracts
The good feature of weight effect.
Claims (4)
1. a kind of L-type cornual plate intensifying method, it is characterised in that: increase straight muscle among the cornual plate of L-type, straight muscle is cut into concave curved
Wire shaped, the concave curve determine method are as follows: cut-off muscle free margins midpoint, it is inclined to L-type cornual plate inflection rib midpoint direction
15% distance is moved, determines point A, straight muscle and L-type cornual plate both sides end face tie point are identified as point B and point C, according to A, B,
3 points of C determine concave curve shape.
2. a kind of L-type cornual plate intensifying method according to claim 1, it is characterised in that: the straight muscle is aluminum alloy materials.
3. a kind of L-type cornual plate intensifying method according to claim 1, it is characterised in that: straight muscle and cornual plate can integrally at
Shape can also be integrated by being welded to connect.
4. a kind of L-type cornual plate intensifying method according to claim 1, it is characterised in that: the variable thickness of the straight muscle is more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811476785.4A CN109519692A (en) | 2018-12-04 | 2018-12-04 | A kind of L-type cornual plate intensifying method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811476785.4A CN109519692A (en) | 2018-12-04 | 2018-12-04 | A kind of L-type cornual plate intensifying method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109519692A true CN109519692A (en) | 2019-03-26 |
Family
ID=65794442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811476785.4A Pending CN109519692A (en) | 2018-12-04 | 2018-12-04 | A kind of L-type cornual plate intensifying method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109519692A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19837976A1 (en) * | 1998-08-21 | 2000-02-24 | Bosch Gmbh Robert | Angular shaped device for joining two parts, in particular two profiles, with several fixing facilities and covering cap |
| CN203570764U (en) * | 2013-10-04 | 2014-04-30 | 朱水莲 | Handle connecting piece with durability increased |
| CN203856808U (en) * | 2014-03-31 | 2014-10-01 | 常盛杰 | Fixing sheet metal part with two kinds of reinforcing ribs |
| CN205065262U (en) * | 2015-09-09 | 2016-03-02 | 新昌县盛夏机械厂 | Two set -square aluminium triangles |
| CN105485099A (en) * | 2015-11-30 | 2016-04-13 | 成都三壹八科技有限公司 | Combined type connecting piece |
| CN206797628U (en) * | 2017-06-08 | 2017-12-26 | 中国船舶工业集团公司第七0八研究所 | A kind of New Marine bracket attachment structure |
| CN107630873A (en) * | 2017-10-27 | 2018-01-26 | 江苏安坤信机电科技有限公司 | A kind of right-angle connector |
-
2018
- 2018-12-04 CN CN201811476785.4A patent/CN109519692A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19837976A1 (en) * | 1998-08-21 | 2000-02-24 | Bosch Gmbh Robert | Angular shaped device for joining two parts, in particular two profiles, with several fixing facilities and covering cap |
| CN203570764U (en) * | 2013-10-04 | 2014-04-30 | 朱水莲 | Handle connecting piece with durability increased |
| CN203856808U (en) * | 2014-03-31 | 2014-10-01 | 常盛杰 | Fixing sheet metal part with two kinds of reinforcing ribs |
| CN205065262U (en) * | 2015-09-09 | 2016-03-02 | 新昌县盛夏机械厂 | Two set -square aluminium triangles |
| CN105485099A (en) * | 2015-11-30 | 2016-04-13 | 成都三壹八科技有限公司 | Combined type connecting piece |
| CN206797628U (en) * | 2017-06-08 | 2017-12-26 | 中国船舶工业集团公司第七0八研究所 | A kind of New Marine bracket attachment structure |
| CN107630873A (en) * | 2017-10-27 | 2018-01-26 | 江苏安坤信机电科技有限公司 | A kind of right-angle connector |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| 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 |
Application publication date: 20190326 |
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| RJ01 | Rejection of invention patent application after publication |