Evaluation Method for Vibration Measurement on Casing in Aeroengine: Theoretical Analysis and Experimental Study

The vibration measurement location is the basis for effective monitoring of aeroengine vibration conditions. Measurement locations need to reflect the vibration of the rotor sufficiently, while complex structures of the aeroengine bring many excitation sources. This paper presents an evaluation meth...

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Main Authors: Lanlan Hou, Shuqian Cao
Format: Article
Language:English
Published: Wiley 2019-01-01
Series:Shock and Vibration
Online Access:http://dx.doi.org/10.1155/2019/1648709
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author Lanlan Hou
Shuqian Cao
author_facet Lanlan Hou
Shuqian Cao
author_sort Lanlan Hou
collection DOAJ
description The vibration measurement location is the basis for effective monitoring of aeroengine vibration conditions. Measurement locations need to reflect the vibration of the rotor sufficiently, while complex structures of the aeroengine bring many excitation sources. This paper presents an evaluation methodology for vibration measurement on casing in the aeroengine. A number of indexes are defined to quantify and characterize the vibration measurement ability of main measurement locations on casing for rotor vibration. A dynamic model of a dual-rotor-casing system is established according to the support structure of a certain type of aeroengine. By means of the introduced evaluation method, the vibration relation between rotors and the main vibration measurement sections is analyzed. Response characteristics and performance orders of measurement sections are given. The rationality of theoretical results is sound verified by experiments on a designed pneumatic-driven double-rotor-casing test bench. The best measured vibration section is consistent with the actual on-board vibration section of the engine, which further demonstrates the effectiveness of the evaluation method. The research results can provide a basis for the selection and optimization of vibration measurement locations and fault diagnosis in the aeroengine. Furthermore, the application of this method is not limited to aeroengine vibration analysis and sensor measurement location optimization, but will be useful for vibration analysis of other rotating machinery.
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spelling doaj-art-873726d5fbd34bde885aa6450fed22f92025-02-03T06:11:16ZengWileyShock and Vibration1070-96221875-92032019-01-01201910.1155/2019/16487091648709Evaluation Method for Vibration Measurement on Casing in Aeroengine: Theoretical Analysis and Experimental StudyLanlan Hou0Shuqian Cao1Department of Mechanics, Tianjin University, Tianjin 300354, ChinaDepartment of Mechanics, Tianjin University, Tianjin 300354, ChinaThe vibration measurement location is the basis for effective monitoring of aeroengine vibration conditions. Measurement locations need to reflect the vibration of the rotor sufficiently, while complex structures of the aeroengine bring many excitation sources. This paper presents an evaluation methodology for vibration measurement on casing in the aeroengine. A number of indexes are defined to quantify and characterize the vibration measurement ability of main measurement locations on casing for rotor vibration. A dynamic model of a dual-rotor-casing system is established according to the support structure of a certain type of aeroengine. By means of the introduced evaluation method, the vibration relation between rotors and the main vibration measurement sections is analyzed. Response characteristics and performance orders of measurement sections are given. The rationality of theoretical results is sound verified by experiments on a designed pneumatic-driven double-rotor-casing test bench. The best measured vibration section is consistent with the actual on-board vibration section of the engine, which further demonstrates the effectiveness of the evaluation method. The research results can provide a basis for the selection and optimization of vibration measurement locations and fault diagnosis in the aeroengine. Furthermore, the application of this method is not limited to aeroengine vibration analysis and sensor measurement location optimization, but will be useful for vibration analysis of other rotating machinery.http://dx.doi.org/10.1155/2019/1648709
spellingShingle Lanlan Hou
Shuqian Cao
Evaluation Method for Vibration Measurement on Casing in Aeroengine: Theoretical Analysis and Experimental Study
Shock and Vibration
title Evaluation Method for Vibration Measurement on Casing in Aeroengine: Theoretical Analysis and Experimental Study
title_full Evaluation Method for Vibration Measurement on Casing in Aeroengine: Theoretical Analysis and Experimental Study
title_fullStr Evaluation Method for Vibration Measurement on Casing in Aeroengine: Theoretical Analysis and Experimental Study
title_full_unstemmed Evaluation Method for Vibration Measurement on Casing in Aeroengine: Theoretical Analysis and Experimental Study
title_short Evaluation Method for Vibration Measurement on Casing in Aeroengine: Theoretical Analysis and Experimental Study
title_sort evaluation method for vibration measurement on casing in aeroengine theoretical analysis and experimental study
url http://dx.doi.org/10.1155/2019/1648709
work_keys_str_mv AT lanlanhou evaluationmethodforvibrationmeasurementoncasinginaeroenginetheoreticalanalysisandexperimentalstudy
AT shuqiancao evaluationmethodforvibrationmeasurementoncasinginaeroenginetheoreticalanalysisandexperimentalstudy