The Experts below are selected from a list of 42882 Experts worldwide ranked by ideXlab platform
Patrick Guillaume - One of the best experts on this subject based on the ideXlab platform.
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sensitivity based Operational Mode shape normalisation application to a bridge
Mechanical Systems and Signal Processing, 2005Co-Authors: E. Parloo, B Cauberghe, F Benedettini, R Alaggio, Patrick GuillaumeAbstract:Recently, an innovative sensitivity-based technique was introduced for the normalisation of Operational Mode shapes purely on a basis of output-only data. The technique is based on the use of a controlled mass modification experiment and does not involve any analytical Models. Moreover, it allows to extend the applicability of many modal analysis based applications towards the domain of in-operation modal testing. Previously, this method was successfully tested by means of experiments on various mechanical engineering structures. The focus of this contribution is the validation of the sensitivity-based normalisation technique on a civil structure. For this purpose, measurements were performed on a bridge.
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SENSITIVITY-BASED Operational Mode SHAPE NORMALISATION
Mechanical Systems and Signal Processing, 2002Co-Authors: E. Parloo, P. Verboven, Patrick Guillaume, M. Van OvermeireAbstract:In the past few years, in-operation modal analysis has become a valid alternative for structures where classic forced vibration tests would be difficult, if not impossible, to conduct. A disadvantage of this method is that the excitation forces are unknown. Therefore, not all modal parameters can still be estimated. As a result, Operational Mode shape estimates remain unscaled (dependent on the unknown level of excitation) what restricts the applicability of Operational modal Models. So far, no techniques are available for the correct re-scaling of Operational Mode shapes purely based on experimental output-only data. All known methods involve either a detailed knowledge of the material characteristics of the test structure (finite element Model approach) or make very restrictive assumptions about the excitation signal. In this contribution, a sensitivity-based method is proposed for the scaling of Operational Mode shapes on a basis of Operational modal Models only.
E. Parloo - One of the best experts on this subject based on the ideXlab platform.
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sensitivity based Operational Mode shape normalisation application to a bridge
Mechanical Systems and Signal Processing, 2005Co-Authors: E. Parloo, B Cauberghe, F Benedettini, R Alaggio, Patrick GuillaumeAbstract:Recently, an innovative sensitivity-based technique was introduced for the normalisation of Operational Mode shapes purely on a basis of output-only data. The technique is based on the use of a controlled mass modification experiment and does not involve any analytical Models. Moreover, it allows to extend the applicability of many modal analysis based applications towards the domain of in-operation modal testing. Previously, this method was successfully tested by means of experiments on various mechanical engineering structures. The focus of this contribution is the validation of the sensitivity-based normalisation technique on a civil structure. For this purpose, measurements were performed on a bridge.
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SENSITIVITY-BASED Operational Mode SHAPE NORMALISATION
Mechanical Systems and Signal Processing, 2002Co-Authors: E. Parloo, P. Verboven, Patrick Guillaume, M. Van OvermeireAbstract:In the past few years, in-operation modal analysis has become a valid alternative for structures where classic forced vibration tests would be difficult, if not impossible, to conduct. A disadvantage of this method is that the excitation forces are unknown. Therefore, not all modal parameters can still be estimated. As a result, Operational Mode shape estimates remain unscaled (dependent on the unknown level of excitation) what restricts the applicability of Operational modal Models. So far, no techniques are available for the correct re-scaling of Operational Mode shapes purely based on experimental output-only data. All known methods involve either a detailed knowledge of the material characteristics of the test structure (finite element Model approach) or make very restrictive assumptions about the excitation signal. In this contribution, a sensitivity-based method is proposed for the scaling of Operational Mode shapes on a basis of Operational modal Models only.
R Alaggio - One of the best experts on this subject based on the ideXlab platform.
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sensitivity based Operational Mode shape normalisation application to a bridge
Mechanical Systems and Signal Processing, 2005Co-Authors: E. Parloo, B Cauberghe, F Benedettini, R Alaggio, Patrick GuillaumeAbstract:Recently, an innovative sensitivity-based technique was introduced for the normalisation of Operational Mode shapes purely on a basis of output-only data. The technique is based on the use of a controlled mass modification experiment and does not involve any analytical Models. Moreover, it allows to extend the applicability of many modal analysis based applications towards the domain of in-operation modal testing. Previously, this method was successfully tested by means of experiments on various mechanical engineering structures. The focus of this contribution is the validation of the sensitivity-based normalisation technique on a civil structure. For this purpose, measurements were performed on a bridge.
F Benedettini - One of the best experts on this subject based on the ideXlab platform.
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sensitivity based Operational Mode shape normalisation application to a bridge
Mechanical Systems and Signal Processing, 2005Co-Authors: E. Parloo, B Cauberghe, F Benedettini, R Alaggio, Patrick GuillaumeAbstract:Recently, an innovative sensitivity-based technique was introduced for the normalisation of Operational Mode shapes purely on a basis of output-only data. The technique is based on the use of a controlled mass modification experiment and does not involve any analytical Models. Moreover, it allows to extend the applicability of many modal analysis based applications towards the domain of in-operation modal testing. Previously, this method was successfully tested by means of experiments on various mechanical engineering structures. The focus of this contribution is the validation of the sensitivity-based normalisation technique on a civil structure. For this purpose, measurements were performed on a bridge.
B Cauberghe - One of the best experts on this subject based on the ideXlab platform.
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sensitivity based Operational Mode shape normalisation application to a bridge
Mechanical Systems and Signal Processing, 2005Co-Authors: E. Parloo, B Cauberghe, F Benedettini, R Alaggio, Patrick GuillaumeAbstract:Recently, an innovative sensitivity-based technique was introduced for the normalisation of Operational Mode shapes purely on a basis of output-only data. The technique is based on the use of a controlled mass modification experiment and does not involve any analytical Models. Moreover, it allows to extend the applicability of many modal analysis based applications towards the domain of in-operation modal testing. Previously, this method was successfully tested by means of experiments on various mechanical engineering structures. The focus of this contribution is the validation of the sensitivity-based normalisation technique on a civil structure. For this purpose, measurements were performed on a bridge.