DE102004016246A1 - Turbine, insbesondere Niederdruckturbine, einer Gasturbine, insbesondere eines Flugtriebwerks - Google Patents

Turbine, insbesondere Niederdruckturbine, einer Gasturbine, insbesondere eines Flugtriebwerks Download PDF

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Publication number
DE102004016246A1
DE102004016246A1 DE102004016246A DE102004016246A DE102004016246A1 DE 102004016246 A1 DE102004016246 A1 DE 102004016246A1 DE 102004016246 A DE102004016246 A DE 102004016246A DE 102004016246 A DE102004016246 A DE 102004016246A DE 102004016246 A1 DE102004016246 A1 DE 102004016246A1
Authority
DE
Germany
Prior art keywords
turbine
stage
vane
blade
aircraft engine
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.)
Ceased
Application number
DE102004016246A
Other languages
English (en)
Inventor
Fritz Kennepohl
Detlef Korte
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MTU Aero Engines AG
Original Assignee
MTU Aero Engines GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by MTU Aero Engines GmbH filed Critical MTU Aero Engines GmbH
Priority to DE102004016246A priority Critical patent/DE102004016246A1/de
Priority to US11/547,581 priority patent/US7806651B2/en
Priority to ES05732126T priority patent/ES2382382T3/es
Priority to EP05732126A priority patent/EP1738061B1/de
Priority to PCT/DE2005/000435 priority patent/WO2005100750A1/de
Publication of DE102004016246A1 publication Critical patent/DE102004016246A1/de
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/26—Antivibration means not restricted to blade form or construction or to blade-to-blade connections or to the use of particular materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/02—Blade-carrying members, e.g. rotors
    • F01D5/10—Anti- vibration means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/96—Preventing, counteracting or reducing vibration or noise

Abstract

Die Erfindung betrifft eine Turbine, insbesondere eine Niederdruckturbine, einer Gasturbine, insbesondere eines Flugtriebwerks. DOLLAR A Die Turbine weist mehrere in Durchströmungsrichtung der Turbine axial hintereinander angeordnete Stufen auf, wobei jede Stufe von einem feststehenden, mehrere Leitschaufeln aufweisenden Leitschaufelkranz und einem rotierenden, mehrere Laufschaufeln aufweisenden Laufschaufelkranz gebildet ist und wobei jede Stufe durch eine Kenngröße vane-to-blade-ratio charakterisiert ist, die das Verhältnis der Leitschaufelanzahl zur Laufschaufelanzahl innerhalb einer Stufe angibt. DOLLAR A Erfindungsgemäß ist mindestens eine der Stufen der Turbine derart ausgelegt, dass die Kenngröße vane-to-blade-ratio derselben in lärmkritischen Betriebsbedingungen der Turbine zwischen einer unteren cut-off-Grenze für die Mode k = -1 der blade-passing-frequency (BPF) dieser Stufe und einer oberen cut-off-Grenze für die Mode k = -2 der blade-passing-frequency (BPF) dieser Stufe liegt.
DE102004016246A 2004-04-02 2004-04-02 Turbine, insbesondere Niederdruckturbine, einer Gasturbine, insbesondere eines Flugtriebwerks Ceased DE102004016246A1 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE102004016246A DE102004016246A1 (de) 2004-04-02 2004-04-02 Turbine, insbesondere Niederdruckturbine, einer Gasturbine, insbesondere eines Flugtriebwerks
US11/547,581 US7806651B2 (en) 2004-04-02 2005-03-11 Method for designing a low-pressure turbine of an aircraft engine, and low-pressure turbine
ES05732126T ES2382382T3 (es) 2004-04-02 2005-03-11 Procedimiento para la concepción de una turbina de un grupo motopropulsor aeronautico
EP05732126A EP1738061B1 (de) 2004-04-02 2005-03-11 Verfahren zur auslegung einer turbine eines flugtriebwerks
PCT/DE2005/000435 WO2005100750A1 (de) 2004-04-02 2005-03-11 Verfahren zur auslegung einer niederdruckturbine eines flugtriebwerks sowie niederdruckturbine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102004016246A DE102004016246A1 (de) 2004-04-02 2004-04-02 Turbine, insbesondere Niederdruckturbine, einer Gasturbine, insbesondere eines Flugtriebwerks

Publications (1)

Publication Number Publication Date
DE102004016246A1 true DE102004016246A1 (de) 2005-10-20

Family

ID=34964490

Family Applications (1)

Application Number Title Priority Date Filing Date
DE102004016246A Ceased DE102004016246A1 (de) 2004-04-02 2004-04-02 Turbine, insbesondere Niederdruckturbine, einer Gasturbine, insbesondere eines Flugtriebwerks

Country Status (5)

Country Link
US (1) US7806651B2 (de)
EP (1) EP1738061B1 (de)
DE (1) DE102004016246A1 (de)
ES (1) ES2382382T3 (de)
WO (1) WO2005100750A1 (de)

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Also Published As

Publication number Publication date
US20080022691A1 (en) 2008-01-31
WO2005100750A1 (de) 2005-10-27
US7806651B2 (en) 2010-10-05
EP1738061A1 (de) 2007-01-03
EP1738061B1 (de) 2012-05-02
ES2382382T3 (es) 2012-06-07

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