CN109558691A - A kind of shock resistance design method of airborne equipment bracket - Google Patents
A kind of shock resistance design method of airborne equipment bracket Download PDFInfo
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- CN109558691A CN109558691A CN201811535947.7A CN201811535947A CN109558691A CN 109558691 A CN109558691 A CN 109558691A CN 201811535947 A CN201811535947 A CN 201811535947A CN 109558691 A CN109558691 A CN 109558691A
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- equipment
- shock resistance
- bracket
- airborne equipment
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000035939 shock Effects 0.000 title claims abstract description 17
- 238000004458 analytical method Methods 0.000 claims abstract description 13
- 230000037396 body weight Effects 0.000 abstract description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/15—Vehicle, aircraft or watercraft design
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/06—Power analysis or power optimisation
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Computational Mathematics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Pure & Applied Mathematics (AREA)
- Computer Hardware Design (AREA)
- Evolutionary Computation (AREA)
- General Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention belongs to aircraft system supporting structure design fields, in particular to the shock resistance design method for arriving a kind of airborne equipment bracket.This method is based on stiffness of support specificity analysis, the position of equipment and bracket tie point and quantitative design, structural impact intensive analysis, and design has equipment supporter, basis connection and additional connection on airborne equipment.The present invention only by way of changing or increasing link position, makes equipment supporter meet impact strength requirement, implements simply, wide adaptability, economy, manpower, body weight are at low cost.
Description
Technical field
The invention belongs to aircraft system supporting structure design field, in particular to a kind of airborne equipment bracket
Shock resistance design method.
Background technique
Aircraft airborne equipment often passes through the structures such as bracket and is connected in aircraft main structure, when airborne equipment quality is larger,
It tends not to meet Related Impulse intensity requirement according only to the supporting structure that space requirement is designed.And in order to want bracket satisfaction
It asks, often increases the rigidity of structure in such a way that thickening, reinforcement etc. increase material, this method often results in bracket and surrounding structure occurs
Interfere and lead to the design for having to change other structures, and will increase aircraft overall weight to reduce the economic effect of aircraft
Benefit.A kind of bracket shock resistance design method is needed, to improve above-mentioned status.
Summary of the invention
Goal of the invention: solving above-mentioned deficiency in the prior art, provides a kind of equipment easy to accomplish, cost price is cheap
Bracket shock resistance design method.
Technical solution: a kind of shock resistance design method of airborne equipment bracket, this method are based on stiffness of support characteristic point
It analyses, position and the quantitative design, structural impact intensive analysis of equipment and bracket tie point, design has equipment branch on airborne equipment
Frame, basis connection and additional connection.
The stiffness of support specificity analysis is obtained by calculating mounting bracket itself characteristics of mode.
The span of the link position of equipment and mounting bracket is sufficiently large, and is connected based on the position, to guarantee big portion
Point shock loading can be transferred to aircraft main structure by shortest path.
The position of the basis connection should be located at mounting bracket rigidity larger part as far as possible, to guarantee the process in load transmission
In, join domain will not generate biggish deformation.
According to stiffness of support characteristic, it is attached in the weaker place of stiffness of support with equipment, as additional connection, to mention
High integrally-built rigidity meet demand.
If bracket is still unsatisfactory for requiring after impact strength calculates, the weak backing positions of rigidity time and equipment can be increased
Connection, as additional connection, to guarantee integrally-built rigidity.
Advantageous effects: the beneficial effect of the shock resistance design method of airborne equipment bracket provided by the present invention exists
In making equipment supporter meet impact strength requirement, implement simple, adaptability only by way of changing or increasing link position
Extensively, economy, manpower, body weight are at low cost.
Specific embodiment
To keep the purposes, technical schemes and advantages of the invention implemented clearer, the invention proposes a kind of airborne equipments
The shock resistance design method of bracket, position of the realization of this method based on stiffness of support specificity analysis, equipment and bracket tie point
With quantitative design, a series of structural impact intensive analysis this means.This method is based on stiffness of support specificity analysis, equipment and branch
The position of frame tie point and quantitative design, structural impact intensive analysis, design has equipment supporter, basis connection on airborne equipment
With additional connection.
The step of implementing the shock resistance method of above-mentioned airborne equipment bracket is as follows:
Equipment supporter meets aircaft configuration space requirement, to meet impact strength requirement, carries out first to equipment supporter
Modal calculation obtains its stiffness characteristics.
The span of basis connection is the achievable maximum span of equipment, guarantees that most of shock loading can be by shortest
Path is transferred to aircraft main structure.
According to equipment supporter stiffness characteristics, it is attached in the weaker place of stiffness of support with equipment, as additional connection,
To improve structure overall stiffness.
If bracket is met the requirements after impact strength analysis, design terminates；Conversely, then increasing the weak bracket position of rigidity time
The connection with equipment is set, as additional connection, to guarantee integrally-built rigidity.
Finally it is noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations.To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, those skilled in the art should understand that: it is still
It is possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is equally replaced
It changes；And these are modified or replaceed, the essence for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution
Mind and range.
Claims (5)
1. a kind of shock resistance design method of airborne equipment bracket, it is characterised in that: this method is based on stiffness of support characteristic point
It analyses, position and the quantitative design, structural impact intensive analysis of equipment and bracket tie point, design has equipment branch on airborne equipment
Frame, basis connection and additional connection.
2. the shock resistance design method of airborne equipment bracket according to claim 1, it is characterised in that: the stiffness of support
Specificity analysis is to calculate mounting bracket itself characteristics of mode.
3. the shock resistance design method of airborne equipment bracket according to claim 1, it is characterised in that: the basis connection
Position should be located at mounting bracket rigidity larger part as far as possible.
4. the shock resistance design method of airborne equipment bracket according to claim 1, it is characterised in that: the additional connection
It is according to stiffness of support characteristic, in the connection that the weaker place of stiffness of support is carried out with equipment.
5. the shock resistance design method of airborne equipment bracket according to claim 1 or 4, it is characterised in that: in rigidity time
The connection of weak backing positions and equipment is also as additional connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811535947.7A CN109558691A (en) | 2018-12-14 | 2018-12-14 | A kind of shock resistance design method of airborne equipment bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811535947.7A CN109558691A (en) | 2018-12-14 | 2018-12-14 | A kind of shock resistance design method of airborne equipment bracket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109558691A true CN109558691A (en) | 2019-04-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811535947.7A Pending CN109558691A (en) | 2018-12-14 | 2018-12-14 | A kind of shock resistance design method of airborne equipment bracket |
Country Status (1)
| Country | Link |
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| CN (1) | CN109558691A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5868472A (en) * | 1995-06-15 | 1999-02-09 | Grilliot; Ronald | Aircraft passenger seat frame |
| CN202032036U (en) * | 2011-03-28 | 2011-11-09 | 沈阳兴华航空电器有限责任公司 | Installation frame with shock absorption function |
| CN204547638U (en) * | 2015-04-02 | 2015-08-12 | 奇瑞汽车股份有限公司 | A kind of lateral rigidity of towing arm attachment point strengthens structure |
| CN105000193A (en) * | 2015-06-23 | 2015-10-28 | 中国航空工业集团公司西安飞机设计研究所 | Follow-up radome bracket and follow-up radar with same as well as aircraft |
| CN105022887A (en) * | 2015-07-27 | 2015-11-04 | 北京汽车股份有限公司 | Evaluation method and apparatus for reinforcing bracket of automobile |
| CN105578376A (en) * | 2016-01-13 | 2016-05-11 | 吉林航盛电子有限公司 | Modal analysis method and system for eliminating loudspeaker mounting bracket resonance |
| CN107562988A (en) * | 2017-07-20 | 2018-01-09 | 西安电子科技大学 | A kind of large-scale truss vibration damping driving force optimization method |
-
2018
- 2018-12-14 CN CN201811535947.7A patent/CN109558691A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5868472A (en) * | 1995-06-15 | 1999-02-09 | Grilliot; Ronald | Aircraft passenger seat frame |
| CN202032036U (en) * | 2011-03-28 | 2011-11-09 | 沈阳兴华航空电器有限责任公司 | Installation frame with shock absorption function |
| CN204547638U (en) * | 2015-04-02 | 2015-08-12 | 奇瑞汽车股份有限公司 | A kind of lateral rigidity of towing arm attachment point strengthens structure |
| CN105000193A (en) * | 2015-06-23 | 2015-10-28 | 中国航空工业集团公司西安飞机设计研究所 | Follow-up radome bracket and follow-up radar with same as well as aircraft |
| CN105022887A (en) * | 2015-07-27 | 2015-11-04 | 北京汽车股份有限公司 | Evaluation method and apparatus for reinforcing bracket of automobile |
| CN105578376A (en) * | 2016-01-13 | 2016-05-11 | 吉林航盛电子有限公司 | Modal analysis method and system for eliminating loudspeaker mounting bracket resonance |
| CN107562988A (en) * | 2017-07-20 | 2018-01-09 | 西安电子科技大学 | A kind of large-scale truss vibration damping driving force optimization method |
Non-Patent Citations (3)
| Title |
|---|
| 吴孟武;黄春江;肖;: "机载雷达电源单元的减重设计及力学仿真分析", 电子机械工程, no. 03, pages 4 - 7 * |
| 吴孟武等: "机载雷达电源单元的减重设计及力学仿真分析", 《电子机械工程》 * |
| 吴孟武等: "机载雷达电源单元的减重设计及力学仿真分析", 《电子机械工程》, vol. 32, no. 03, 15 June 2016 (2016-06-15) * |
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| PB01 | Publication | ||
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Application publication date: 20190402 |