CN105022899A - Through-canopy ejection simulation method - Google Patents
Through-canopy ejection simulation method Download PDFInfo
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- CN105022899A CN105022899A CN201510511233.2A CN201510511233A CN105022899A CN 105022899 A CN105022899 A CN 105022899A CN 201510511233 A CN201510511233 A CN 201510511233A CN 105022899 A CN105022899 A CN 105022899A
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- canopy
- ejection
- cutter sweep
- emulation mode
- transparent parts
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Abstract
The invention relates to the field of plane ejection lifesaving, in particular to a through-canopy ejection simulation method, and by means of the method, the whole through-canopy ejection process can be simulated. According to the through-canopy ejection simulation method, application and expansion can actually start from matching simulation between explosive quantity of a micro detonation cord or cutting rope and thickness of targeted materials to be cut to conduct cockpit canopy breakage situation simulation; then simulation of the whole through-canopy ejection process is conducted, so that a physical test on matching between the explosive quantity of the cutting rope and the thickness of the targeted materials to be cut can be simplified and replaced, and a basis is provided for determination of the through-canopy ejection test state; meanwhile, a part of through-canopy ejection test is simplified, the ejection lifesaving system development cost and risk are lowered, and the system development cycle is shortened.
Description
Technical field
The present invention relates to airplane catapult lifesaving field, be specifically related to a kind of through canopy ejection emulation mode.
Background technology
Emulate through canopy ejection, the domestic groundwork carried out at present adopts transient state kinetic methods to mate with canopy Transparent Parts thickness microexplosion rope dose to emulate.Domesticly also whole through canopy ejection process not to be emulated at present, to the rupture event of canopy Transparent Parts, wear in lid process the lid overload of wearing of launching occupant and emulate, thus optimize the parameter designing of ejector seat, canopy Transparent Parts.
Summary of the invention
The object of this invention is to provide a kind of through canopy ejection emulation mode, can emulate whole through canopy ejection process.
Technical scheme of the present invention is:
A kind of through canopy ejection emulation mode, comprises the steps:
Step one, choose that simulation object is cutter sweep, cut target, canopy Transparent Parts, ejector seat and launch occupant;
Step 2, by emulation mode to the matching optimization between the material of the dose of described cutter sweep and described cut target and thickness;
Step 3, set up the geometric model of described canopy Transparent Parts and cutter sweep, and carry out mess generation, then by the dose of the described cutter sweep after matching optimization, carry out the emulation of breaking of described canopy Transparent Parts;
Step 4, using the described canopy Transparent Parts after breaking as model, by inputting physical attribute and the movement properties of described ejector seat, carry out wearing lid process simulation.
Alternatively, described cutter sweep is microexplosion rope.
Alternatively, described cutter sweep is flexible linear shaped charge.
Alternatively, in described step 2 in step 4, transient state kinetic methods is all adopted to emulate.
Alternatively, the physical attribute of described ejector seat comprises weight, center of gravity, and described movement properties comprises acceleration.
Beneficial effect of the present invention:
The present invention proposes a kind of through canopy ejection emulation mode being applicable to the whole through canopy ejection process simulation of aircraft, the application of the method and expand can conscientiously from dose and the cut target material of microexplosion rope or flexible linear shaped charge, coupling emulation between thickness starts, carry out the emulation of canopy rupture event, carry out whole through canopy ejection process simulation again, thus can simplify and the dose of alternative flexible linear shaped charge and cut target material, coupling physical test between thickness, for the determination of through canopy ejection trystate provides foundation, simplify the test of part through canopy ejection simultaneously, reduce ejection life-saving system development cost and developing risk, shorten system development cycle.
Accompanying drawing explanation
Fig. 1 is the process flow diagram of through canopy ejection emulation mode of the present invention.
Embodiment
Here will be described exemplary embodiment in detail, its sample table shows in the accompanying drawings.When description below relates to accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawing represents same or analogous key element.
As shown in Figure 1, a kind of through canopy ejection emulation mode provided by the invention, comprises the steps:
Step one, choose that simulation object is cutter sweep, cut target, canopy Transparent Parts, ejector seat and launch occupant.Wherein, cutter sweep can be chosen as microexplosion rope or flexible linear shaped charge as required.
Step 2, by emulation mode to the matching optimization (utilizing DYNA software) between the material of the dose of cutter sweep and cut target and thickness.
Step 3, set up the geometric model of canopy Transparent Parts and cutter sweep, and carry out mess generation, then by the dose of the cutter sweep after matching optimization, carry out the emulation of breaking of canopy Transparent Parts.
Step 4, using the canopy Transparent Parts after breaking as model, by inputting physical attribute and the movement properties of ejector seat, carry out wearing lid process simulation (DYNA solver), thus analyze launch that occupant bears wear lid overload, optimize the parameter designing of ejector seat, canopy Transparent Parts, complete emulation.It should be noted that, step 2, in step 4, can adopt multiple applicable emulation mode, is to adopt transient state kinetic methods to emulate in the present embodiment.In addition, above-mentioned physical attribute can carry out the selection be applicable to as required, and in the present embodiment, physical attribute comprises quality, center of gravity, and movement properties comprises acceleration.
The present invention proposes a kind of through canopy ejection emulation mode being applicable to the whole through canopy ejection process simulation of aircraft, the application of the method and expand can conscientiously from dose and the cut target material of microexplosion rope or flexible linear shaped charge, coupling emulation between thickness starts, carry out the emulation of canopy rupture event, carry out whole through canopy ejection process simulation again, thus can simplify and the dose of alternative flexible linear shaped charge and cut target material, coupling physical test between thickness, for the determination of through canopy ejection trystate provides foundation, simplify the test of part through canopy ejection simultaneously, reduce ejection life-saving system development cost and developing risk, shorten system development cycle.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.
Claims (5)
1. a through canopy ejection emulation mode, is characterized in that, comprises the steps:
Step one, choose that simulation object is cutter sweep, cut target, canopy Transparent Parts, ejector seat and launch occupant;
Step 2, by emulation mode to the matching optimization between the material of the dose of described cutter sweep and described cut target and thickness;
Step 3, set up the geometric model of described canopy Transparent Parts and cutter sweep, and carry out mess generation, then by the dose of the described cutter sweep after matching optimization, carry out the emulation of breaking of described canopy Transparent Parts;
Step 4, using the described canopy Transparent Parts after breaking as model, by inputting physical attribute and the movement properties of described ejector seat, carry out wearing lid process simulation.
2. through canopy ejection emulation mode according to claim 1, is characterized in that, described cutter sweep is microexplosion rope.
3. through canopy ejection emulation mode according to claim 1, is characterized in that, described cutter sweep is flexible linear shaped charge.
4. through canopy ejection emulation mode according to claim 1, is characterized in that, in described step 2 in step 4, all adopts transient state kinetic methods to emulate.
5. through canopy ejection emulation mode according to claim 1, is characterized in that, the physical attribute of described ejector seat comprises weight, center of gravity, and described movement properties comprises acceleration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510511233.2A CN105022899A (en) | 2015-08-19 | 2015-08-19 | Through-canopy ejection simulation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510511233.2A CN105022899A (en) | 2015-08-19 | 2015-08-19 | Through-canopy ejection simulation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105022899A true CN105022899A (en) | 2015-11-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510511233.2A Pending CN105022899A (en) | 2015-08-19 | 2015-08-19 | Through-canopy ejection simulation method |
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| CN (1) | CN105022899A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106742053A (en) * | 2016-11-30 | 2017-05-31 | 中国航空工业集团公司沈阳飞机设计研究所 | A kind of hood jettison experimental rig, system and canopy |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201465338U (en) * | 2009-06-26 | 2010-05-12 | 北京欣远诚业科技有限公司 | Ejection training simulator |
| CN203111514U (en) * | 2013-02-01 | 2013-08-07 | 中国航空工业集团公司西安飞机设计研究所 | Ejection seat ejection signal collection device |
-
2015
- 2015-08-19 CN CN201510511233.2A patent/CN105022899A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201465338U (en) * | 2009-06-26 | 2010-05-12 | 北京欣远诚业科技有限公司 | Ejection training simulator |
| CN203111514U (en) * | 2013-02-01 | 2013-08-07 | 中国航空工业集团公司西安飞机设计研究所 | Ejection seat ejection signal collection device |
Non-Patent Citations (2)
| Title |
|---|
| 关焕文登: "聚能***切割清理弹射通道技术", 《航空学报》 * |
| 李志强等: "人/椅弹射救生***穿盖过程的数值模拟", 《***与冲击》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106742053A (en) * | 2016-11-30 | 2017-05-31 | 中国航空工业集团公司沈阳飞机设计研究所 | A kind of hood jettison experimental rig, system and canopy |
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Application publication date: 20151104 |