[특허]Method of using laser shock impacts to produce raised elements on a wall surface capable of being swept by a fluid in order to control the intensity of turbulence in a transition zone

Method of using laser shock impacts to produce raised elements on a wall surface capable of being swept by a fluid in order to control the intensity of turbulence in a transition zone 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F01D-005/04 F01D-005/10
출원번호	US-0570475 (2012-08-09)
등록번호	US-8607456 (2013-12-17)
우선권정보	FR-07 06675 (2007-09-24)
발명자 / 주소	Lebret, Yann Pascal Raymond Rene Mons, Claude Marcel
출원인 / 주소	SNECMA
대리인 / 주소	Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
인용정보	피인용 횟수 : 0 인용 특허 : 25

초록 ▼

A method for producing, on the surface of a wall capable of being swept by a fluid, raised elements forming disruptions of the boundary layer is disclosed. The method includes applying laser shocks to the surface so as to create peaks on the edge of the impact zones such that the peaks form the disr

대표청구항 ▼

1. A method for producing, on a wall surface capable of being swept by a fluid, disruptive raised elements in a boundary layer, comprising: identifying a desired transition zone on the wall surface between a laminar boundary layer and a turbulent boundary layer;applying laser shocks to the transition zone on said surface so as to create peaks on a border of impact zones of said laser shocks; andvarying heights of the peaks by applying at least some of the laser shocks such that the laser shocks overlap,wherein said overlap of the laser shocks results in a squashed peak on the border of the impact zones,wherein the height of the squashed peak is a function of an amount of the overlap between the laser shocks such that the height of the squashed peak decreases as the amount of the overlap between laser shocks increases,wherein the wall is of a turbomachine blade,wherein the peaks constitute said disruptive raised elements,wherein intensity of turbulence in the transition zone is controlled based on at least one of shape of the impacts, height of the peaks, or distance between laser shocks,wherein the squashed peaks are applied in zones in which a slight roughness and laminar flow are desired; andwherein said impact zones present a round or elliptical shape. 2. The method as claimed in claim 1, wherein laser shocks are produced arranged so that the impacts produced are partially overlapping one another. 3. The method as claimed in claim 1, wherein energy applied to the laser shocks is varied according to the impact zone, so as to obtain disruptive raised elements of different heights. 4. The method as claimed in claim 1, wherein the wall is of a compressor blade of a gas turbine engine. 5. The method as claimed in claim 1, wherein the laser shocks are applied on a suction side of the blade.

이 특허에 인용된 특허 (25)

Dane, C. Brent; Harris, Fritz B.; Taranowski, Joseph T.; Brown, Stewart B., Active beam delivery system for laser peening and laser peening method.
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Dane, C. Brent; Harris, Fritz B.; Taranowski, Joseph T.; Brown, Stewart B., Active beam delivery system with image relay.
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Dane, C. Brent; Harris, Fritz B.; Taranowski, Joseph T.; Honett, Steven L; Brown, Stewart B., Active beam delivery system with variable optical path segment through air.
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Clauer, Allan H.; Lahrman, David F.; Dulaney, Jeff L.; Toller, Steve M., Articles having improved residual stress profile characteristics produced by laser shock peening.
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Savill Anthony M. (Cambridge GB2), Control of fluid flow.
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Michael Evans Graham ; John Dennis Jackson, Dual laser shock peening.
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Dulaney Jeff L. ; Clauer Allan H. ; Toller Steven M., Efficient laser peening.
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Hackel, Lloyd A.; Zaleski, Tania M.; Chen, Hao-Lin; Hill, Michael R.; Liu, Kevin K., Laser peening for reducing hydrogen embrittlement.
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Hackel, Lloyd A.; Halpin, John M.; Harris, Jr., Fritz B., Laser peening of components of thin cross-section.
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Hackel, Lloyd A.; Halpin, John M.; Harris, Jr., Fritz B., Laser peening of components of thin cross-section.
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Mannava Seetharamaiah (Cincinnati OH) McDaniel Albert E. (Cincinnati OH) Cowie William D. (Zenia OH) Halila Herbert (Cincinnati OH) Rhoda James E. (Mason OH) Gutknecht James E. (Cincinnati OH), Laser shock peened gas turbine engine fan blade edges.
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Mannava, Seetharamaiah; Cowie, William D., Laser shock peened gas turbine engine intermetallic parts.
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Mannava Seetharamaiah (Cincinnati OH) McDaniel Albert E. (Cincinnati OH) Cowie William D. (Xenia OH), Laser shock peened rotor components for turbomachinery.
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Westley,Jacquelyn A.; Jones,Dean; Andrews,Ian, Laser shock peening.
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Dulaney Jeff L. ; Sokol David W., Laser shock peening apparatus with a diffractive optic element.
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Unternahrer Josef Robert, Laser shock peening method and reflective laser beam homogenizer.
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Clauer Allan H. (Worthington OH) Fairand Barry P. (Arlington OH) Ford Stephen C. (Worthington OH) Walters Craig T. (Arlington OH), Laser shock processing.
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Mannava,Seetha Ramaiah; Rockstroh,Todd Jay; Shepherd,William Woodrow; Prentice,Ian Francis; Broderick,Thomas Froats, Lower fluence boundary laser shock peening.
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Vigneau, Joel Olivier Alfred Abel, Metal component treated by putting sublayers in compression, and method of obtaining such a component.
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Dulaney Jeff L. ; Clauer Allan H. ; Clarady Joseph F. ; Baumgarten Robert ; Weinstein Jerry G. ; Hack Benjamin R., Method using laser shock peening to process airfoil weld repairs pertaining to blade cut and weld techniques.
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Dickinson Peter H. (Filton GBX) Proudley Geoffrey M. (Filton GBX), Methods of manufacture and surface treatment using laser radiation.
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Brenner, Berndt; Tietz, Frank, Process for producing wear-resistant edge layers in precipitation-hardenable materials.
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Kuefner Gustav,DEX ; Mueller Horst,DEX ; Breindl Martin,DEX ; Sokol Bernd,DEX ; Zeisler Walter,DEX, Turbine blade for use in the wet steam region of penultimate and ultimate stages of turbines.
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Bailey, Mark Samuel; Hausfeld, Michael Paul; Williams, Jr., Donald Eugene; Rockstroh, Todd Jay, Varying fluence as a function of thickness during laser shock peening.
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Hirschel Ernst H. (Zorneding DEX) Fleckenstein Hubert (Grasbrunn DEX) Thiede Peter (Ganderkesee DEX), Wall with a drag reducing surface and method for making such a wall.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
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연합인증

Method of using laser shock impacts to produce raised elements on a wall surface capable of being swept by a fluid in order to control the intensity of turbulence in a transition zone 원문보기

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Method of using laser shock impacts to produce raised elements on a wall surface capable of being swept by a fluid in order to control the intensity of turbulence in a transition zone 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

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