JP5069103B2 - 流体膜軸受の不安定性制御方法 - Google Patents
流体膜軸受の不安定性制御方法 Download PDFInfo
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- JP5069103B2 JP5069103B2 JP2007516079A JP2007516079A JP5069103B2 JP 5069103 B2 JP5069103 B2 JP 5069103B2 JP 2007516079 A JP2007516079 A JP 2007516079A JP 2007516079 A JP2007516079 A JP 2007516079A JP 5069103 B2 JP5069103 B2 JP 5069103B2
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
- F16C32/0402—Bearings not otherwise provided for using magnetic or electric supporting means combined with other supporting means, e.g. hybrid bearings with both magnetic and fluid supporting means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C17/00—Sliding-contact bearings for exclusively rotary movement
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C17/00—Sliding-contact bearings for exclusively rotary movement
- F16C17/02—Sliding-contact bearings for exclusively rotary movement for radial load only
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C17/00—Sliding-contact bearings for exclusively rotary movement
- F16C17/12—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load
- F16C17/24—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load with devices affected by abnormal or undesired positions, e.g. for preventing overheating, for safety
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
- F16C23/02—Sliding-contact bearings
- F16C23/04—Sliding-contact bearings self-adjusting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/10—Construction relative to lubrication
- F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C39/00—Relieving load on bearings
- F16C39/06—Relieving load on bearings using magnetic means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49636—Process for making bearing or component thereof
- Y10T29/49639—Fluid bearing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49636—Process for making bearing or component thereof
- Y10T29/49696—Mounting
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49764—Method of mechanical manufacture with testing or indicating
- Y10T29/49778—Method of mechanical manufacture with testing or indicating with aligning, guiding, or instruction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49764—Method of mechanical manufacture with testing or indicating
- Y10T29/49778—Method of mechanical manufacture with testing or indicating with aligning, guiding, or instruction
- Y10T29/4978—Assisting assembly or disassembly
Description
本発明は流体膜軸受に関し、特に、磁気軸受を用いて、および軸受内で意図的にミスアラインさせたジャーナルの使用を含むユニークな方法を用いて、よく知られている流体膜軸受の不安定性を制御することに関する。
軸振動のユニークな特徴は、定義によると、時に非常に高速で回転し、機械にその機能を実行させるロータの存在である。この回転には二つの主な意味がある。一つは、膨大な量の運動エネルギィが回転する機械に保存されることである。機構により、このエネルギィのうちのいくらかが回転から軸振動に移動すると、この移動により確実に機械の不安定性を引き起こすであろう。このエネルギィを移動させた結果、回転する機械の不安定性を引き起こすいくつかの機構は:内部ダンピング、空気力学的クロスカップリング、シール、高速ジャーナル軸受、インターシャフトスクイーズ膜ダンパ、その他である。
オイルホイップ理論に関して1959年のY.Horiの優秀な論文があり、流体膜軸受の不安定性についての歴史が述べられている。Horiによれば、オイルワールおよびオイルホイップ現象は1925年に最初に報告された。この不安定性が報告されてから4分の3世紀がたっているにもかかわらず、この主題は現在でもまだ興味深いものである。G.Kirkは2003年に、この興味は、本質的には以下の二つの疑問に答えることにあると説明した。「ロータシステムがスレッシュホールド速度を越える可能性があるか?ロータシステムはこのスレッシュホールド速度より上で動作するか?」である。これらの二つの疑問は、不安定性の開始に影響するパラメータを理解する必要性と共に、ここに与えられているこの研究の動機でもある。
本発明の一の実施例は、複合型磁気−流体膜軸受であり、もう一つの実施例は、安定型流体膜軸受である。
発明の背景において述べたように、磁気軸受がおそらく回転機械の最良のサポートである。しかしながら、その欠点、本質的に信頼性に関する欠点は、多くのアプリケーション、特に航空機エンジンへのその使用を阻んでいる。又、上述したように、流体膜軸受には、高速のアプリケーションへの使用を阻む安定性の問題がある。
6,737,777 Magnetic bearing and use thereof;
6,727,617 Method and apparatus for providing three axis magnetic bearing having permanent magnets mounted on radial pole stock;
6,720,695 Rotor spinning device with a contact less, passive, radial bearing for the spinning rotor;
6,717,311 Combination magnetic radial and thrust bearing;
6,707,200 Integrated magnetic bearing;
6,703,736 Magnetic bearing;
6,653,756 Magnetic bearing device; 及び
6,606,536 Magnetic bearing device and magnetic bearing control device
6,089,756 Plain bearing;
5,879,085 Tilt pad hydrodynamic bearing for rotating machinery;
5,879,076 Tilt pad hydrodynamic bearing for rotating machinery;
5,772,334 Fluid film bearings;
5,743,657 Tilting pad journal bearing;
5,743,654 Hydrostatic and active control movable pad bearing;
5,634,723 Hydrodynamic fluid film bearings;
5,549,392 Shaft seal for hydrodynamic bearing unit;
5,531,523 Rotor journal bearing having adjustable bearing pads;
5,516,212 Hydrodynamic bearing with controlled lubricant pressure distribution;
5,489,155 Tilt pad variable geometry bearings, having tilting bearing pads and methods of making same;
5,480,234 Journal bearing;
5,322,371 Fluid film bearing;
5,201,585 Fluid film journal bearing with squeeze film damper for turbo machinery;
5,096,309 Hydrodynamic bearing system;
5,032,028 Fluid film bearing;
4,961,122 Hydrodynamic grooved bearing device;
4,828,403 Resiliently mounted fluid bearing assembly;
4,880,320 Fluid film journal bearings;
4,767,223 Hydrodynamic journal bearings;
4,597,676 Hybrid bearing;
4,526,483 Fluid foil bearing;
4,415,281 Hydrodynamic fluid film bearing;
4,300,808 Tilting-pad bearings;
4,034,228 Tilting pad bearing; 及び
3,969,804 Bearing housing assembly method for high speed rotating shafts
上述したとおり、流体膜軸受は、オイルワールおよびオイルホイップと呼ばれる不安定性の問題を抱えている。多くの特許が、より安定している流体膜軸受を設計する方法について述べている。例えば、
6,089,756 Plain bearing;
5,879,085 Tilt pad hydrodynamic bearing for rotating machinery;
5,879,076 Tilt pad hydrodynamic bearing for rotating machinery;
5,772,334 Fluid film bearings;
5,743,657 Tilting pad journal bearing;
5,743,654 Hydrostatic and active control movable pad bearing;
5,634,723 Hydrodynamic fluid film bearings;
5,549,392 Shaft seal for hydrodynamic bearing unit;
5,531,523 Rotor journal bearing having adjustable bearing pads;
5,516,212 Hydrodynamic bearing with controlled lubricant pressure distribution;
5,489,155 Tilt pad variable geometry bearings, having tilting bearing pads and methods of making same;
5,480,234 Journal bearing;
5,322,371 Fluid film bearing;
5,201,585 Fluid film journal bearing with squeeze film damper for turbo machinery;
5,096,309 Hydrodynamic bearing system;
5,032,028 Fluid film bearing;
4,961,122 Hydrodynamic grooved bearing device;
4,828,403 Resiliently mounted fluid bearing assembly;
4,880,320 Fluid film journal bearings;
4,767,223 Hydrodynamic journal bearings;
4,597,676 Hybrid bearing;
4,526,483 Fluid foil bearing;
4,415,281 Hydrodynamic fluid film bearing;
4,300,808 Tilting-pad bearings;
4,034,228 Tilting pad bearing; 及び
3,969,804 Bearing housing assembly method for high speed rotating shafts
本発明は、流体膜軸受(円筒型ジャーナル軸受、楕円軸受、オフセットハーフ軸受、多円弧型軸受、フォイル軸受、またはティルティングパッド軸受であるかどうかは実際問題でない)と組み合わせた磁気軸受を用いて流体膜軸受の不安定性を制御する方法であり、ここでは、流体膜軸受が主耐荷軸受として働き、磁気軸受が流体膜軸受の不安定性を制御する。この有効な組み合わせによって、安定性の問題も信頼性の問題もない高速で使用することのできる軸受をもたらす。流体膜軸受の不安定性を制御する代替の方法は、軸方向におけるフローを妨げることである。例えば、スリーブ(ジャーナル)軸受は、軸受軸がシャフト軸に対して傾斜しており、あるいは可変ジオメトリ軸受を製造して、軸受の角度ミスアラインメントができるようにする。
Claims (2)
- 高速ロータあるいはシャフトアッセンブリで使用するラジアル流体膜軸受を含む流体膜軸受における不安定性を制御する方法において、
磁気軸受とラジアル流体膜軸受とを組み合わせるステップを具え、前記ラジアル流体膜軸受が主耐荷軸受であり、
前記ラジアル流体膜軸受用の流体が前記磁気軸受のロータと、前記磁気軸受内のロータとステータとの間のクリアランス内とを通過するように、前記組み合わせた磁気軸受とラジアル流体膜軸受とが前記磁気軸受の中に前記ラジアル流体膜軸受を有する一つの一体型軸受の形を取り、
前記磁気軸受が前記ラジアル流体膜軸受の不安定性を制御する手段として作用するように構成されていることを特徴とする方法。 - 請求項1に記載の方法において、前記ラジアル流体膜軸受が、円筒型ジャーナル軸受、楕円軸受、オフセットハーフ軸受、多円弧型軸受、ティルティングパッド軸受、およびフォイル軸受からなる群から選択されることを特徴とする方法。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US57986604P | 2004-06-15 | 2004-06-15 | |
US60/579,866 | 2004-06-15 | ||
US11/147,762 US7836601B2 (en) | 2004-06-15 | 2005-06-08 | Methods of controlling the instability in fluid film bearings |
US11/147,762 | 2005-06-08 | ||
PCT/IB2005/002732 WO2005122684A2 (en) | 2004-06-15 | 2005-06-08 | Methods of controlling the instability in fluid film bearings |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012108503A Division JP2012177480A (ja) | 2004-06-15 | 2012-05-10 | 流体膜軸受の不安定性制御方法 |
Publications (3)
Publication Number | Publication Date |
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JP2008503693A JP2008503693A (ja) | 2008-02-07 |
JP2008503693A5 JP2008503693A5 (ja) | 2008-07-24 |
JP5069103B2 true JP5069103B2 (ja) | 2012-11-07 |
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JP2007516079A Expired - Fee Related JP5069103B2 (ja) | 2004-06-15 | 2005-06-08 | 流体膜軸受の不安定性制御方法 |
JP2012108503A Pending JP2012177480A (ja) | 2004-06-15 | 2012-05-10 | 流体膜軸受の不安定性制御方法 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
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JP2012108503A Pending JP2012177480A (ja) | 2004-06-15 | 2012-05-10 | 流体膜軸受の不安定性制御方法 |
Country Status (9)
Country | Link |
---|---|
US (2) | US7836601B2 (ja) |
EP (1) | EP1792093A4 (ja) |
JP (2) | JP5069103B2 (ja) |
KR (1) | KR20070039922A (ja) |
BR (1) | BRPI0511385A (ja) |
CA (1) | CA2570052A1 (ja) |
IL (1) | IL179953A0 (ja) |
RU (1) | RU2399803C2 (ja) |
WO (1) | WO2005122684A2 (ja) |
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CN110488853B (zh) * | 2019-08-29 | 2021-06-08 | 北京航空航天大学 | 一种降低转轴涡动影响的混合式惯导系统稳定控制指令的计算方法 |
CN111122157B (zh) * | 2019-11-26 | 2020-12-18 | 燕山大学 | 磁液双悬浮轴承实验台 |
US11585235B2 (en) | 2020-11-18 | 2023-02-21 | Rolls-Royce North American Technologies Inc. | Magnetic shaft mode control |
CN112555273A (zh) * | 2020-12-03 | 2021-03-26 | 武汉理工大学 | 一种磁悬浮和弹性箔片气体混合轴承实验平台 |
WO2022199997A1 (en) * | 2021-03-26 | 2022-09-29 | Sulzer Management Ag | Vertical pump |
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-
2005
- 2005-06-08 WO PCT/IB2005/002732 patent/WO2005122684A2/en active Search and Examination
- 2005-06-08 JP JP2007516079A patent/JP5069103B2/ja not_active Expired - Fee Related
- 2005-06-08 RU RU2006146875/11A patent/RU2399803C2/ru not_active IP Right Cessation
- 2005-06-08 EP EP05781597A patent/EP1792093A4/en not_active Withdrawn
- 2005-06-08 CA CA002570052A patent/CA2570052A1/en not_active Abandoned
- 2005-06-08 KR KR1020077000874A patent/KR20070039922A/ko active Search and Examination
- 2005-06-08 US US11/147,762 patent/US7836601B2/en not_active Expired - Fee Related
- 2005-06-08 BR BRPI0511385-7A patent/BRPI0511385A/pt not_active IP Right Cessation
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CA2570052A1 (en) | 2005-12-29 |
US7836601B2 (en) | 2010-11-23 |
JP2008503693A (ja) | 2008-02-07 |
IL179953A0 (en) | 2007-05-15 |
US20080224556A1 (en) | 2008-09-18 |
RU2399803C2 (ru) | 2010-09-20 |
JP2012177480A (ja) | 2012-09-13 |
US20050275300A1 (en) | 2005-12-15 |
EP1792093A2 (en) | 2007-06-06 |
RU2006146875A (ru) | 2008-07-20 |
WO2005122684A2 (en) | 2005-12-29 |
KR20070039922A (ko) | 2007-04-13 |
WO2005122684A3 (en) | 2007-08-16 |
EP1792093A4 (en) | 2011-10-26 |
BRPI0511385A (pt) | 2007-12-04 |
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