RU97105023A - DEVICE AND METHOD FOR STATIC BALANCING OF BLOCKS OF SCREWS OF HELICOPTERS - Google Patents
DEVICE AND METHOD FOR STATIC BALANCING OF BLOCKS OF SCREWS OF HELICOPTERSInfo
- Publication number
- RU97105023A RU97105023A RU97105023/28A RU97105023A RU97105023A RU 97105023 A RU97105023 A RU 97105023A RU 97105023/28 A RU97105023/28 A RU 97105023/28A RU 97105023 A RU97105023 A RU 97105023A RU 97105023 A RU97105023 A RU 97105023A
- Authority
- RU
- Russia
- Prior art keywords
- blade
- weight
- obte
- oble
- ible
- Prior art date
Links
- 230000003068 static Effects 0.000 title claims 17
- 210000001331 Nose Anatomy 0.000 claims 6
- 230000001105 regulatory Effects 0.000 claims 2
Claims (14)
IBMпопе речный = WIBLE • C1 - WIBTE • C2 (1)
OBMпоп еречный = WOBLE • C3 - WOBTE • C4 (2)
где WIBLE - вес, измеренный упомянутыми первыми весами (8IBLE, 9IBLE);
WIBTE - вес, измеренный упомянутыми вторыми весами (8IBTE, 9OBTE);
WOBLE - вес, измеренный упомянутыми третьими весами (8OBLE, 9OBLE);
WOBTE - вес, измеренный упомянутыми четвертыми весами (8OBTE, 9OBTE).2. A device for static balancing according to claim 1, characterized in that the first scales (8 IBLE , 9 IBLE ) are mounted offset to the leading edge (30) from the blade feathering axis (36) by a distance C 1 , the second scales (8 IBTE , 9 IBTE ) are installed with an offset towards the trailing edge (20) from the blade feathering axis (36) at a distance of C 2 , the third scales (8 OBLE , 9 OBLE ) are installed with an offset towards the leading edge (30) from axis (36) vane feathering at a distance of C 3 , and the aforementioned fourth scales (8 OBTE , 9 OBTE ) are installed with an offset of towards the trailing edge (20) from the axis (36) feathering the blades by a distance C 4, wherein said microprocessor (MPR) is programmed to determine the actual transverse weighted moments (IBM of transverse, OBM of transverse) butt and the end portions of the blade by solving the following equations :
IBM of transverse = W IBLE • C 1 - W IBTE • C 2 (1)
OBM pop transverse = W OBLE • C 3 - W OBTE • C 4 (2)
where W IBLE is the weight measured by the first weights mentioned (8 IBLE , 9 IBLE );
W IBTE - weight measured by said second weights (8 IBTE , 9 OBTE );
W OBLE - weight measured by the mentioned third weights (8 OBLE , 9 OBLE );
W OBTE - weight measured by the mentioned fourth weights (8 OBTE , 9 OBTE ).
WPIB = WIBLE • C1 - WIBTE • C2 ± MCIB, (3)
WPOB = WOBLE • C3 - WOBTE • C4 ± MCOB (4)
где MCIB - упомянутый заданный поперечный весовой момент комлевой части лопасти;
WPIB - упомянутый момент весовой коррекции комлевой части лопасти, необходимой для достижения MCIB;
MCOB - упомянутый заданный поперечный весовой момент концевой части лопасти;
WPOB - упомянутый момент весовой коррекции концевой части лопасти, необходимой для достижения MCOB.4. A device for static balancing according to claim 3, characterized in that said microprocessor (MPR) is programmed to calculate the parameters of said weight correction (WP IB , WP OB ) of the butt and end parts of the blade by solving the following equations:
WP IB = W IBLE • C 1 - W IBTE • C 2 ± MC IB , (3)
WP OB = W OBLE • C 3 - W OBTE • C 4 ± MC OB (4)
where MC IB is said predetermined lateral weight moment of the butt portion of the blade;
WP IB - the mentioned moment of weight correction of the butt part of the blade necessary to achieve MC IB ;
MC OB - said predetermined lateral weight moment of the end part of the blade;
WP OB - the mentioned moment of weight correction of the end part of the blade, necessary to achieve the MC OB .
Mпрод ольный = (WIBLE + WIBTE ± WPIB) • r1 + (WOBLE + WOBTE ± WPOB) • r2,
где Mпрод ольный - фактический продольный весовой момент лопасти (2).6. A device for static balancing according to claim 5, characterized in that said first and second scales (8 IBLE , 9 IBLE ; 8 IBTE , 9 IBTE ) are installed remote from the baseline (38), indicating the axis of rotation of the blade (2), at a distance of r 1 , said third and fourth scales (8 OBLE , 9 OBLE ; 8 OBTE , 9 OBTE ) are installed remote from said baseline (38) at a distance of r 2 , and said microprocessor (MPR) determines the said actual longitudinal weights of the bow and the tail parts of the blade by solving the equation:
M cont ol = (W IBLE + W IBTE ± WP IB) • r 1 + (W OBLE + W OBTE ± WP OB) • r 2,
wherein M cont ol - actual longitudinal weight moment of the blade (2).
Mпродол ьный (задан.) = Mпрод ольный ± W36 • r3,
где Mпродо льный (задан.) - заданный продольный весовой момент лопасти (2);
W36 - вес, который необходимо добавить или снять с лопасти по ее продольному сечению, взятому по оси (36) флюгирования;
r3 - продольное расстояние между точкой приложения веса W36 и упомянутой базовой линией (38).8. The device for static balancing according to claim 7, characterized in that the said microprocessor (MPR) is programmed to calculate the parameters of the said weight correction of the blade along its span by solving the equation:
M continued ny (specified.) = M cont ol ± W 36 • r 3,
where M is longitudinal (specified) is the given longitudinal weight moment of the blade (2);
W 36 is the weight that must be added or removed from the blade along its longitudinal section taken along the feathering axis (36);
r 3 is the longitudinal distance between the point of application of the weight W 36 and said baseline (38).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/298,712 | 1994-08-31 | ||
US08/298,712 US5475622A (en) | 1994-08-31 | 1994-08-31 | Method and apparatus for balancing helicopter rotor blades |
PCT/US1995/010070 WO1996006775A1 (en) | 1994-08-31 | 1995-08-09 | Method and apparatus for balancing helicopter rotor blades |
Publications (2)
Publication Number | Publication Date |
---|---|
RU97105023A true RU97105023A (en) | 1999-03-10 |
RU2138790C1 RU2138790C1 (en) | 1999-09-27 |
Family
ID=23151708
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU97105023A RU2138790C1 (en) | 1994-08-31 | 1995-08-09 | Method and device for static balancing helicopter rotor blades |
Country Status (11)
Country | Link |
---|---|
US (1) | US5475622A (en) |
EP (1) | EP0777601B1 (en) |
JP (1) | JP3589672B2 (en) |
KR (1) | KR970705498A (en) |
CN (1) | CN1065492C (en) |
BR (1) | BR9508646A (en) |
CA (1) | CA2198718A1 (en) |
DE (1) | DE69505682T2 (en) |
RU (1) | RU2138790C1 (en) |
TR (1) | TR199501075A2 (en) |
WO (1) | WO1996006775A1 (en) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
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US5824897A (en) * | 1996-08-15 | 1998-10-20 | Avion, Inc. | Blade static balancing fixture |
US7775107B2 (en) * | 2007-10-03 | 2010-08-17 | Hamilton Sundstrand Corporation | Measuring rotor imbalance via blade clearance sensors |
US8353673B2 (en) * | 2008-04-26 | 2013-01-15 | Sikorsky Aircraft Corporation | Main rotor blade with integral cuff |
US7966865B2 (en) * | 2009-01-05 | 2011-06-28 | Michael Alfred Wilhelm Lenz | Method for balancing radical projections detached from a rotating assembly |
CN102410905B (en) * | 2011-12-14 | 2014-03-26 | 中国人民解放军总参谋部第六十研究所 | Rotational inertia and center of gravity integrated measuring apparatus for unmanned helicopter |
US8954298B2 (en) | 2012-01-03 | 2015-02-10 | The Boeing Company | Methods and systems for helicopter rotor blade balancing |
US9216821B1 (en) | 2012-01-03 | 2015-12-22 | The Boeing Company | Methods and systems for helicopter rotor blade balancing |
RU2531091C2 (en) * | 2012-11-22 | 2014-10-20 | Олег Юрьевич Егоров | Method to balance assembled fans |
US20140260711A1 (en) * | 2013-03-12 | 2014-09-18 | Larry A. Turner | Probe balancer |
US9598168B2 (en) | 2013-09-23 | 2017-03-21 | Sikorsky Aircraft Corporation | Method of assembling and balancing rotor blades |
US9988146B2 (en) | 2013-11-08 | 2018-06-05 | Sikorsky Aircraft Corporation | Rotor balancing apparatus |
US9290237B1 (en) * | 2014-10-24 | 2016-03-22 | Jian-Xing Lin | Hydrofoil |
US9914534B2 (en) * | 2015-04-07 | 2018-03-13 | Sikorsky Aircraft Corporation | Method for static balancing of aircraft rotor blades |
CN106197844A (en) * | 2015-05-05 | 2016-12-07 | 昌河飞机工业(集团)有限责任公司 | A kind of device measuring composite material blade static moment and measuring method thereof |
WO2016209889A1 (en) | 2015-06-22 | 2016-12-29 | Sikorsky Aircraft Corporation | Core material for composite structures |
KR101686929B1 (en) * | 2016-05-03 | 2016-12-15 | 엘아이지넥스원 주식회사 | Alignment apparatus and method of blade for flying apparatus |
US11548627B2 (en) | 2016-08-15 | 2023-01-10 | Sikorsky Aircraft Corporation | Core matertal for balanced rotor blade |
DE102017206349B4 (en) * | 2017-04-12 | 2019-04-11 | Siemens Gamesa Renewable Energy A/S | Weighing device for a wind turbine rotor blade |
CN109850138A (en) * | 2017-11-30 | 2019-06-07 | 中光电智能机器人股份有限公司 | Unmanned plane and its propeller |
US11391156B2 (en) | 2020-01-23 | 2022-07-19 | Textron Innovations Inc. | Static rotor blade assembly balancing |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
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USRE26047E (en) * | 1966-06-28 | Propeller balancing device | ||
US2388705A (en) * | 1942-11-05 | 1945-11-13 | Aviat Corp | Apparatus for balancing propeller blades |
US3782202A (en) * | 1972-04-20 | 1974-01-01 | Balance Technology Inc | Method and apparatus for balancing segmented parts |
US3952601A (en) * | 1974-12-18 | 1976-04-27 | United Technologies Corporation | Helicopter rotor blade balancing method |
DE2528007C2 (en) * | 1975-06-24 | 1984-04-19 | Messerschmitt-Bölkow-Blohm GmbH, 8000 München | Procedure for correcting the center of gravity and the weight of rotor blades |
US3999888A (en) * | 1975-06-25 | 1976-12-28 | United Technologies Corporation | Composite tip weight attachment |
DE2740454A1 (en) * | 1977-09-08 | 1979-03-15 | Hofmann Gmbh & Co Kg Maschinen | METHOD AND DEVICE FOR BALANCING ROTORS, IN PARTICULAR OF MOTOR VEHICLE WHEELS |
DE2935002C3 (en) * | 1979-08-30 | 1982-03-11 | Messerschmitt-Bölkow-Blohm GmbH, 8000 München | Device for correcting the total weight and the static moment of a single rotating leaf |
US4348885A (en) * | 1980-12-12 | 1982-09-14 | Gebr. Hofmann Gmbh & Co. Kg, Maschinenfabrik | Method and system for operational testing of a device for balancing bodies of rotation |
DE3247503C1 (en) * | 1982-12-22 | 1984-01-19 | Wolf-Dieter 6100 Darmstadt Reutlinger | Device for determining unbalance on propellers |
US4489605A (en) * | 1982-12-27 | 1984-12-25 | Donald O. Gillman | Balancing machine for large rotatable parts |
USRE34207E (en) * | 1986-11-19 | 1993-03-30 | General Electric Company | Counterrotating aircraft propulsor blades |
US4971641A (en) * | 1988-11-14 | 1990-11-20 | General Electric Company | Method of making counterrotating aircraft propeller blades |
US4991437A (en) * | 1988-11-30 | 1991-02-12 | Hanchett Raymond L | Airfoil balancer |
US4986149A (en) * | 1989-04-10 | 1991-01-22 | Dayton-Walther Corporation | System for final balancing of cast metal brake drums |
US5273398A (en) * | 1992-12-01 | 1993-12-28 | United Technologies Corporation | Rotor blade balance weight assembly |
-
1994
- 1994-08-31 US US08/298,712 patent/US5475622A/en not_active Expired - Lifetime
-
1995
- 1995-08-09 JP JP50877296A patent/JP3589672B2/en not_active Expired - Fee Related
- 1995-08-09 KR KR1019970701284A patent/KR970705498A/en not_active Application Discontinuation
- 1995-08-09 CA CA002198718A patent/CA2198718A1/en not_active Abandoned
- 1995-08-09 RU RU97105023A patent/RU2138790C1/en active
- 1995-08-09 WO PCT/US1995/010070 patent/WO1996006775A1/en not_active Application Discontinuation
- 1995-08-09 DE DE69505682T patent/DE69505682T2/en not_active Expired - Fee Related
- 1995-08-09 BR BR9508646A patent/BR9508646A/en not_active IP Right Cessation
- 1995-08-09 CN CN95194846A patent/CN1065492C/en not_active Expired - Fee Related
- 1995-08-09 EP EP95933711A patent/EP0777601B1/en not_active Expired - Lifetime
- 1995-08-29 TR TR95/01075A patent/TR199501075A2/en unknown
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