IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0443345
(2012-04-10)
|
등록번호 |
US-8677881
(2014-03-25)
|
발명자
/ 주소 |
- Tillotson, Brian J.
- Fischer, Brian G.
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
2 인용 특허 :
27 |
초록
▼
According to an embodiment, a method for attenuating shock waves may include detecting at least one of an incoming hostile threat or electromagnetic radiation from an explosion from the hostile threat and filling an enclosure with a gas, the enclosure being positioned between the explosion and a reg
According to an embodiment, a method for attenuating shock waves may include detecting at least one of an incoming hostile threat or electromagnetic radiation from an explosion from the hostile threat and filling an enclosure with a gas, the enclosure being positioned between the explosion and a region to be protected. According to one embodiment, a system may include a sensor configured to detect at least one of the direction of an incoming threat and an explosion from the incoming threat, an inflatable enclosure, and an inflation device configured to receive a trigger signal from the sensor indicating the arrival of the threat or explosion from the threat and inflate the inflatable enclosure in time to allow the inflated enclosure to reflect, absorb and/or refract and defocus at least a portion of the shock wave from the explosion before it reaches the protected region.
대표청구항
▼
1. A system for protecting a protected region from shock waves, the system comprising: a sensor configured to detect at least one of a hostile threat or electromagnetic radiation from an explosion from the hostile threat, the sensor programmed to predict therefrom a vector and an arrival time of a s
1. A system for protecting a protected region from shock waves, the system comprising: a sensor configured to detect at least one of a hostile threat or electromagnetic radiation from an explosion from the hostile threat, the sensor programmed to predict therefrom a vector and an arrival time of a shock wave from the explosion relative to a protected region and generate a trigger signal in response thereto;an inflatable enclosure configured to retain gas in a predetermined shape when the enclosure is substantially inflated by the gas;an inflation device connected to receive the trigger signal from the sensor and connected to the inflatable enclosure, the inflation device being configured to supply the gas to the inflatable enclosure in response to the trigger signal from the sensor in time to substantially inflate the inflatable enclosure prior to the shock wave arrival, the inflatable enclosure being shaped such that, when inflated by the gas, the retained gas diminishes an effect of the shock wave on the protected region by at least one of reflecting at least a portion of the shock wave, refracting and defocusing at least a portion of the shock wave, and absorbing at least a portion of the shock wave. 2. The system of claim 1, wherein the sensor is configured to detect one or more of the magnitude, elevation, azimuthal angle, distance and signature of the explosion, and determine therefrom whether the shock wave from the explosion will pose a threat to the protected region and if so, determine an optimal time to generate the trigger signal. 3. The system of claim 1, wherein: at least one part of the inflatable enclosure is convex shaped when substantially inflated by the gas; andthe properties of the gas are selected so that a speed of a shock wave in the gas is one of faster than or slower than the speed of the shock wave in ambient air adjacent to the inflatable enclosure. 4. The system of claim 1, wherein the at least one part of the inflatable enclosure is oriented at an angle with respect to the shock wave, and said angle chosen to maximize reflection of the shock wave by the retained gas. 5. The system of claim 3, wherein the inflatable enclosure is composed of material selected from silk, polyester film, aluminized polyester film, para-aramid synthetic fiber and woven nylon fabric. 6. The system of claim 1, wherein the inflatable enclosure is shaped to have a forward portion and a rearward portion such that the forward portion and rearward portion are positioned between the protected region and shock wave. 7. The system of claim 1, wherein the inflation device includes a housing; and the inflatable enclosure is stored substantially within the housing prior to inflation. 8. The system of claim 7, wherein the inflation device includes a gas generation unit located within the housing and in communication with the inflatable enclosure. 9. The system of claim 7, wherein the sensor is mounted on the housing. 10. The system of claim 7, wherein the housing has generally a truncated prism shape. 11. The system of claim 1, further comprising a plurality of sensors, inflation devices and inflatable enclosures arranged substantially around the protected region. 12. The system of claim 1, wherein the inflation device is configured to supply particulate material dispersed through the gas to the inflatable enclosure. 13. The system of claim 7, wherein the housing includes resilient connectors for attaching the housing to a support. 14. The system of claim 1, wherein the inflation device is configured to fill the inflatable enclosure with the gas to at least one of a pressure above ambient pressure and a temperature at one of above ambient temperature and below ambient temperature. 15. A method of protecting a protected region, the method comprising: detecting by a sensor at least one of a hostile threat or electromagnetic radiation from an explosion from the hostile threat relative to the protected region, predicting therefrom a vector and an arrival time of a shock wave from the explosion relative to the protected region, and generating a trigger signal in response thereto;providing an inflatable enclosure positioned such that, when inflated, the inflated enclosure is substantially between a location of the explosion from the hostile threat and the protected region;providing an inflation device to receive the trigger signal from the sensor, and in response thereto, substantially inflate the inflatable enclosure in time to protect the protected region from the shock wave from the explosion, the inflatable enclosure being configured to retain a gas in a predetermined shape when the enclosure is substantially fully inflated, whereby the inflated inflatable enclosure diminishes an effect of the shock wave on the protected region by at least one of reflecting at least a portion of the shock wave, refracting and defocusing at least a portion of the shock wave, and absorbing at least a portion of the shock wave. 16. The method of claim 15, further comprising attenuating the shock wave at least partially in a direction toward the protected region. 17. The method of claim 15, wherein the step of providing a sensor includes providing a sensor configured to detect one or more of the magnitude, elevation, azimuthal angle, distance and signature of the explosion, and determine therefrom whether the shock wave from the explosion will pose a threat to the protected region, and if so, determining an optimal time to generate the trigger signal. 18. The method of claim 15, further comprising positioning the inflation device and the inflatable enclosure adjacent to the protected region. 19. The method of claim 15, further comprising positioning the protected region adjacent to the inflatable enclosure. 20. The method of claim 15, further comprising positioning a plurality of the inflation devices substantially about the protected region. 21. The method of claim 20, wherein positioning a plurality of the inflation devices includes providing a plurality of the sensors and a plurality of the inflation devices, each of the sensors and the inflation devices connected to trigger a different one of the plurality of the inflation devices. 22. The method of claim 21, wherein providing a plurality of sensors includes spacing the plurality of sensors substantially about the protected region.
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