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2,666
Variability Of Modal Parameters Measured On The Alamosa
"... A significant amount of work has been reported in technical literature regarding the use of changes in modal parameters to identify the location and extent of damage in structures. Curiously absent, and critically important to the practical implementation of this work, is an accurate characterizatio ..."
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A significant amount of work has been reported in technical literature regarding the use of changes in modal parameters to identify the location and extent of damage in structures. Curiously absent, and critically important to the practical implementation of this work, is an accurate
LOAD ESTIMATION FROM MODAL PARAMETERS
"... In Natural Input Modal Analysis the modal parameters are estimated just from the responses while the loading is not recorded. However, engineers are sometimes interested in knowing some features of the loading acting on a structure. In this paper, a procedure to determine the loading from a FRF matr ..."
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In Natural Input Modal Analysis the modal parameters are estimated just from the responses while the loading is not recorded. However, engineers are sometimes interested in knowing some features of the loading acting on a structure. In this paper, a procedure to determine the loading from a FRF
Turbine(해상풍력발전기), Modal Parameter(모드특성)
, 2012
"... A damage estimation method for support structure of offshore wind turbine using modal parame-ters is presented for effective structural health monitoring. Natural frequencies and mode shapes for a support structure with monopile of an offshore wind turbine were calculated considering soil con-dition ..."
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A damage estimation method for support structure of offshore wind turbine using modal parame-ters is presented for effective structural health monitoring. Natural frequencies and mode shapes for a support structure with monopile of an offshore wind turbine were calculated considering soil con
Autonomous Modal Parameter Estimation: Application Examples
"... ABSTRACT Autonomous modal parameter estimation is an attractive approach when estimating modal parameters (frequency, damping, mode shape, and modal scaling) as long as the results are physically reasonable. Frequently, significant post processing is required to tune the autonomous estimates. A gen ..."
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Cited by 2 (2 self)
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ABSTRACT Autonomous modal parameter estimation is an attractive approach when estimating modal parameters (frequency, damping, mode shape, and modal scaling) as long as the results are physically reasonable. Frequently, significant post processing is required to tune the autonomous estimates. A
Spatial Information in Autonomous Modal Parameter Estimation
"... Recent work with autonomous modal parameter estimation has shown great promise in the quality of the modal parameter estimation results when compared to results from traditional methods by experienced users. While autonomous modal parameter estimation means slightly different things to different re ..."
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Recent work with autonomous modal parameter estimation has shown great promise in the quality of the modal parameter estimation results when compared to results from traditional methods by experienced users. While autonomous modal parameter estimation means slightly different things to different
Continuous Monitoring of Modal Parameters to Quantify Structural Damage
- Proc. of IMAC XII
, 1993
"... In this paper, a continuous monitoring system which measures the vibration of a structure, identifies changes in its modal parameters, and predicts occurrences of structural faults is presented. An overall acquisition and computational procedure is presented for detecting and quantifying damage in s ..."
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Cited by 1 (0 self)
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In this paper, a continuous monitoring system which measures the vibration of a structure, identifies changes in its modal parameters, and predicts occurrences of structural faults is presented. An overall acquisition and computational procedure is presented for detecting and quantifying damage
Modal Parameter Extraction Of Z24 Bridge Data
, 2001
"... shaker excitation tests of the Z24 Bridge in Switzerland are analyzed to extract modal parameters such as natural frequencies, damping ratios, and mode shapes. System identification techniques including Frequency Domain Decomposition and Eigensystem Realization Algorithm are employed for the extract ..."
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Cited by 4 (0 self)
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shaker excitation tests of the Z24 Bridge in Switzerland are analyzed to extract modal parameters such as natural frequencies, damping ratios, and mode shapes. System identification techniques including Frequency Domain Decomposition and Eigensystem Realization Algorithm are employed
Autonomous Modal Parameter Estimation: Methodology",
- Proceedings, International Modal Analysis Conference (IMAC),
, 2011
"... ABSTRACT Traditionally, the estimation of modal parameters from a set of measured data has required significant experience. However, as the technology has matured, increasingly, analysis is being performed by less experienced engineers or technicians. To address this development, frequently softwar ..."
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Cited by 2 (2 self)
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ABSTRACT Traditionally, the estimation of modal parameters from a set of measured data has required significant experience. However, as the technology has matured, increasingly, analysis is being performed by less experienced engineers or technicians. To address this development, frequently
Determining the Accuracy of Modal Parameter Estimation Methods
, 1992
"... The most common type of modal testing system today uses an FFT analyzer to measure a set of Frequency Response Functions (FRFs) from a structure, and then uses a parameter estimation (curve fitting) method to determine the structure’s modal properties from the FRF measurements. The curve fitting met ..."
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The most common type of modal testing system today uses an FFT analyzer to measure a set of Frequency Response Functions (FRFs) from a structure, and then uses a parameter estimation (curve fitting) method to determine the structure’s modal properties from the FRF measurements. The curve fitting
Influence of in-service environment on modal parameters
- Proc., IMAC 16
"... ABSTRACT Current bridge inspection methods rely largely on visual examination to evaluate bridge condition. Remote bridge monitoring systems (RBMS) using measured structural vibration and calibrated analytical models are expected to assist in future bridge inspection and management. Establishing a b ..."
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Cited by 8 (0 self)
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parameters with respect to variations resulting from test and in-service environmental conditions. Effects of environmental conditions in establishing baseline properties and detecting simulated damage were documented. Results indicated that extreme care should be exercised in establishing baseline modal
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