FR3127285B1 - Test method for a turbomachine allowing monitoring of fan flutter - Google Patents

Test method for a turbomachine allowing monitoring of fan flutter Download PDF

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Publication number
FR3127285B1
FR3127285B1 FR2109984A FR2109984A FR3127285B1 FR 3127285 B1 FR3127285 B1 FR 3127285B1 FR 2109984 A FR2109984 A FR 2109984A FR 2109984 A FR2109984 A FR 2109984A FR 3127285 B1 FR3127285 B1 FR 3127285B1
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France
Prior art keywords
turbomachine
fan
test method
allowing monitoring
flutter
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Active
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FR2109984A
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French (fr)
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FR3127285A1 (en
Inventor
Bacha Mourad Yahia
Marion Cuny
Cécile Esteves
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Safran Aircraft Engines SAS
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Safran Aircraft Engines SAS
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Priority to FR2109984A priority Critical patent/FR3127285B1/en
Publication of FR3127285A1 publication Critical patent/FR3127285A1/en
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Publication of FR3127285B1 publication Critical patent/FR3127285B1/en
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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M15/00—Testing of engines
    • G01M15/14—Testing gas-turbine engines or jet-propulsion engines

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

Au cours d’un essai d’une turbomachine, le flottement de la soufflante peut être surveillé au moyen d’un algorithme prédictif préalablement entraîné, recevant en entrée des signaux dynamiques provenant respectivement d’au moins un capteur de vibrations agencé dans la turbomachine de manière à surveiller l’état d’un palier, et d’au moins un microphone équipant le banc d’essai, et un signal de régime provenant d’au moins un capteur de régime agencé dans la turbomachine, et donc sans recourir à des capteurs spécifiques. L’entraînement de l’algorithme prédictif peut être mis en œuvre en constituant, pour une turbomachine de référence, une base de données d’apprentissage à partir de tels signaux et d’au moins un signal de référence provenant d’au moins un capteur de référence agencé dans la turbomachine de référence de manière à mesurer une amplitude de déplacement tangentiel d’au moins une aube de la soufflante. Figure pour l’abrégé : Figure 1During a test of a turbomachine, the flutter of the fan can be monitored by means of a previously trained predictive algorithm, receiving as input dynamic signals coming respectively from at least one vibration sensor arranged in the turbomachine. manner of monitoring the state of a bearing, and of at least one microphone fitted to the test bench, and a speed signal coming from at least one speed sensor arranged in the turbomachine, and therefore without resorting to specific sensors. The training of the predictive algorithm can be implemented by constituting, for a reference turbomachine, a learning database from such signals and at least one reference signal coming from at least one sensor reference arranged in the reference turbomachine so as to measure an amplitude of tangential movement of at least one blade of the fan. Figure for abstract: Figure 1

FR2109984A 2021-09-22 2021-09-22 Test method for a turbomachine allowing monitoring of fan flutter Active FR3127285B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR2109984A FR3127285B1 (en) 2021-09-22 2021-09-22 Test method for a turbomachine allowing monitoring of fan flutter

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2109984A FR3127285B1 (en) 2021-09-22 2021-09-22 Test method for a turbomachine allowing monitoring of fan flutter
FR2109984 2021-09-22

Publications (2)

Publication Number Publication Date
FR3127285A1 FR3127285A1 (en) 2023-03-24
FR3127285B1 true FR3127285B1 (en) 2023-09-01

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ID=78049474

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2109984A Active FR3127285B1 (en) 2021-09-22 2021-09-22 Test method for a turbomachine allowing monitoring of fan flutter

Country Status (1)

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FR (1) FR3127285B1 (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2941049B1 (en) * 2009-01-13 2011-02-11 Snecma METHOD AND SYSTEM FOR MONITORING VIBRATION PHENOMENA IN AN AIRCRAFT GAS TURBINE ENGINE IN OPERATION
FR3032273B1 (en) * 2015-01-30 2019-06-21 Safran Aircraft Engines METHOD, SYSTEM AND COMPUTER PROGRAM FOR LEARNING PHASE OF ACOUSTIC OR VIBRATORY ANALYSIS OF A MACHINE

Also Published As

Publication number Publication date
FR3127285A1 (en) 2023-03-24

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