EP1478940A1 - Procede permettant de determiner des dommages occasionnes par l'impact de corps etrangers sur des engins spatiaux - Google Patents
Procede permettant de determiner des dommages occasionnes par l'impact de corps etrangers sur des engins spatiauxInfo
- Publication number
- EP1478940A1 EP1478940A1 EP03704310A EP03704310A EP1478940A1 EP 1478940 A1 EP1478940 A1 EP 1478940A1 EP 03704310 A EP03704310 A EP 03704310A EP 03704310 A EP03704310 A EP 03704310A EP 1478940 A1 EP1478940 A1 EP 1478940A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- impact
- damage
- caused
- detection
- foreign bodies
- 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.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41J—TARGETS; TARGET RANGES; BULLET CATCHERS
- F41J5/00—Target indicating systems; Target-hit or score detecting systems
- F41J5/04—Electric hit-indicating systems; Detecting hits by actuation of electric contacts or switches
- F41J5/056—Switch actuation by hit-generated mechanical vibration of the target body, e.g. using shock or vibration transducers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/18—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using ultrasonic, sonic, or infrasonic waves
- G01S5/22—Position of source determined by co-ordinating a plurality of position lines defined by path-difference measurements
Definitions
- the invention relates to a method for detecting damage to space vehicles caused by the impact of foreign bodies by means of sound measurement. It also relates to an apparatus for performing such a method.
- the object of the invention is to develop a method of the type mentioned at the outset in such a way that it enables the exact location of the impact of meteorites and debris and thus immediate hazard detection.
- Another object of the invention is to provide an apparatus for performing such a method.
- the invention achieves the first object by a method in which the ultrasonic vibrations caused by an impact are registered electronically and fed to an evaluation unit for the mathematical localization of the location of the damage.
- the further object is achieved with a device according to claim 4.
- the invention uses the physical effect that even the smallest openings in the outer skin of a spacecraft generate ultrasonic vibrations due to the gas flowing through them, which are suitable for the detection and localization of the location of the damage. Because the method according to the invention is activated in an advantageous further development only by the impact of a foreign body, it can remain in the idle or waiting state during the predominant part of a space flight mission and thus requires very little electrical energy. In addition, the method according to the invention also enables damage or impacts that do not lead to holes in the outer skin of the spacecraft, but which represent potential sources of danger, to be detected as well.
- Triangulation method to locate the impact locations.
- FIG. 2 shows a basic illustration of an evaluation unit for an arrangement according to FIGS. 1 and
- FIGS. 1 and 2 shows a module of a space station with an arrangement according to FIGS. 1 and 2.
- FIG. 1 shows a measuring system that uses ultrasound waves to locate ultrasound sources using a triangular transit time and phase measurement, with the aid of mathematical correlation processes, and thus enables a location of an impact or damage to be localized.
- the vibration is recorded in the initial state with the help of at least three independently working, synchronously working
- Ultrasonic sensors 1, 2 and 3 which in the arrangement shown in the drawing according to FIG. 1 are mounted in an equilateral-isosceles triangle on a surface 4 to be monitored. It should be noted here that this arrangement is preferred in an equilateral isosceles triangle, but is not absolutely necessary for carrying out the method described here.
- Each of the sensors 1 to 3 is connected to an associated measurement and storage electronics, which the measurement data for a process computer Evaluation transmitted as shown in detail in FIG. 2.
- Fig. 2 shows that each ultrasonic sensor 1 to 3 is connected to an associated downstream amplifier 5 to 7, these amplifiers 5 to 7 in turn acting on filters 8 to 10 on sample and hold stages 11 to 13.
- the latter is followed by an A / D converter 14 to 16, which in turn are connected to a memory unit 17.
- the areas of this memory unit 17 assigned to the individual sensors 1 to 3 are connected to the process computer 20 via a multiplexer 18 and a data bus 19.
- the latter applies the appropriate address lines to the individual components listed above via a control bus 21.
- Transient ultrasonic waves occur immediately after an impact of meteorites and debris and are used in the arrangement described above to activate the detection system on the one hand and to measure the wave propagation time on the other hand.
- the ultrasound sensor closest to a point of impact in the case of the example shown in FIG. 1, sensor 1 detects the incident ultrasound wave as the first measuring sensor and triggers the measuring system.
- the remaining sensors 2 and 3 record the ultrasound signal after a corresponding delay time, according to their distance from the point of impact. The resulting phase and amplitude differences are used in the evaluation unit to determine the impact position.
- the evaluation of ultrasonic vibrations in the steady state takes place by utilizing the damping effect of the ultrasonic waves caused by the Material properties caused and can be detected by means of a phase comparison to be carried out by the sensor and measuring arrangement described above.
- the process computer is programmed in such a way that known ultrasonic vibrations caused by external systems are masked out.
- FIG 3 finally shows an arrangement corresponding to the one described above, in which sensors 31 to 36 are arranged distributed on the surface of a space station 37 in order to perform the desired monitoring function.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
L'invention concerne un procédé permettant de déterminer des dommages occasionnés par l'impact de corps étrangers sur des engins spatiaux. Selon ce procédé, les vibrations ultrasonores engendrées par un impact sont enregistrées électroniquement et transmises à une unité d'évaluation destinée à localiser de façon mathématique l'emplacement du dommage, le processus d'enregistrement et d'évaluation étant exécuté de façon automatique et les vibrations ultrasonores connues produites par des systèmes étrangers étant supprimées. L'invention concerne également un dispositif permettant de mettre en oeuvre ce procédé. Ce dispositif comprend au moins trois détecteurs d'ultrasons répartis à la surface du corps à contrôler, ainsi qu'une unité électronique d'acquisition et d'évaluation associée à ces détecteurs.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10208724 | 2002-02-28 | ||
DE10208724A DE10208724C1 (de) | 2002-02-28 | 2002-02-28 | Verfahren zur Erfassung von durch den Aufprall von Fremdkörpern verursachten Beschädigungen an Raumfahrzeugen |
PCT/DE2003/000462 WO2003073122A1 (fr) | 2002-02-28 | 2003-02-15 | Procede permettant de determiner des dommages occasionnes par l'impact de corps etrangers sur des engins spatiaux |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1478940A1 true EP1478940A1 (fr) | 2004-11-24 |
Family
ID=27762499
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03704310A Withdrawn EP1478940A1 (fr) | 2002-02-28 | 2003-02-15 | Procede permettant de determiner des dommages occasionnes par l'impact de corps etrangers sur des engins spatiaux |
Country Status (7)
Country | Link |
---|---|
US (1) | US20050063252A1 (fr) |
EP (1) | EP1478940A1 (fr) |
JP (1) | JP2005519268A (fr) |
AU (1) | AU2003206662A1 (fr) |
DE (1) | DE10208724C1 (fr) |
RU (1) | RU2004108125A (fr) |
WO (1) | WO2003073122A1 (fr) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009143453A (ja) * | 2007-12-14 | 2009-07-02 | Fujitsu Ten Ltd | 盗難防止装置及び位置特定方法 |
GB2475926B (en) | 2009-12-07 | 2011-10-19 | Phs Space Ltd | Debris impact mitigation apparatus for spacecraft |
CN101799533B (zh) * | 2010-04-09 | 2012-05-23 | 华北电力大学 | 平面四元阵列电站锅炉承压管泄漏定位方法 |
JP5671316B2 (ja) * | 2010-12-01 | 2015-02-18 | 株式会社Ihi | 宇宙浮遊物体検出装置 |
ITMI20111332A1 (it) | 2011-07-18 | 2013-01-19 | Orbit S R L D | Dispositivo per la deorbitazione di satelliti artificiali. |
DE102014001258A1 (de) * | 2014-01-30 | 2015-07-30 | Hella Kgaa Hueck & Co. | Vorrichtung und Verfahren zur Erfassung mindestens eines Körperschallsignals |
CN105784303B (zh) * | 2016-03-04 | 2018-09-18 | 北京卫星环境工程研究所 | 基于振动试验设备能力的航天器产品控制包络确定方法 |
CN109655880A (zh) * | 2019-01-10 | 2019-04-19 | 西安交通大学 | 一种大型圆柱结构活动多余物的检测方法 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20010047691A1 (en) * | 2000-01-03 | 2001-12-06 | Yuris Dzenis | Hybrid transient-parametric method and system to distinguish and analyze sources of acoustic emission for nondestructive inspection and structural health monitoring |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3033990A1 (de) * | 1980-09-10 | 1982-04-15 | GeWerTec Gesellschaft für Werkstofftechnik mbH, 4600 Dortmund | Verfahren und vorrichtung zur schallemissions-ortung und -analyse |
WO1982000893A1 (fr) * | 1980-09-10 | 1982-03-18 | Gewertec Gmbh | Procede et dispositif de localisation et d'analyse d'emissions sonores |
JPS59225374A (ja) * | 1983-06-06 | 1984-12-18 | Hitachi Ltd | 音源位置標定方法とその装置 |
JP3165455B2 (ja) * | 1991-03-26 | 2001-05-14 | 三菱重工業株式会社 | 宇宙航行機に対するメテオロイド又はデブリの衝突検知方法及びその装置 |
FR2682608A1 (fr) * | 1991-10-17 | 1993-04-23 | Rousseau Claude | Dispositif pour determiner la position d'impact d'un projectile, notamment balle de golf, sur un panneau cible. |
-
2002
- 2002-02-28 DE DE10208724A patent/DE10208724C1/de not_active Expired - Fee Related
-
2003
- 2003-02-15 US US10/497,880 patent/US20050063252A1/en not_active Abandoned
- 2003-02-15 WO PCT/DE2003/000462 patent/WO2003073122A1/fr active Application Filing
- 2003-02-15 AU AU2003206662A patent/AU2003206662A1/en not_active Abandoned
- 2003-02-15 JP JP2003571756A patent/JP2005519268A/ja active Pending
- 2003-02-15 RU RU2004108125/09A patent/RU2004108125A/ru not_active Application Discontinuation
- 2003-02-15 EP EP03704310A patent/EP1478940A1/fr not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20010047691A1 (en) * | 2000-01-03 | 2001-12-06 | Yuris Dzenis | Hybrid transient-parametric method and system to distinguish and analyze sources of acoustic emission for nondestructive inspection and structural health monitoring |
Non-Patent Citations (2)
Title |
---|
"DETECTING IMPACTS OF PARTICLES ON SPACECRAFT", NTIS TECH NOTES, US DEPARTMENT OF COMMERCE. SPRINGFIELD, VA, US, 1 January 1990 (1990-01-01), pages 49, XP000104295, ISSN: 0889-8464 * |
See also references of WO03073122A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20050063252A1 (en) | 2005-03-24 |
WO2003073122A1 (fr) | 2003-09-04 |
DE10208724C1 (de) | 2003-09-25 |
RU2004108125A (ru) | 2005-03-27 |
JP2005519268A (ja) | 2005-06-30 |
AU2003206662A1 (en) | 2003-09-09 |
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