Titlebook: Structural Health Monitoring, Photogrammetry & DIC, Volume 6; Proceedings of the 3 Christopher Niezrecki,Javad Baqersad Conference proceedi

GREEN

Relating Vibration and Thermal Losses Using the Damping Heat Coefficient,med to be one of the biggest drains of energy; however, it is very hard to experimentally identify how much of the damped energy is converted to heat. This manuscript introduces the damping heat coefficient and via high-speed cameras (optical and thermal) identifies that, for the selected material,

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Implementation of Piezoelectric Shape Sensors Using Digital Image Correlation,ensors are constructed using a piezoelectric film material which is bonded to the surface of a beam structure. The electrical outputs of the sensors are then calibrated such that the modal coordinates of the beam displacement can be measured. Calibration of the sensors is performed by using beam dis

Deceit

Variable Amplitude Fatigue Testing Apparatus and Its Dynamical Characterization,s presented. This system is intended to investigate the interaction between fatigue damage evolution and structural dynamics, and apply the acquired understanding to practical fatigue life prediction. Generalized frequency response function, sine-sweep, and restoring force surface methods were used

Cupping

Orthogonal Projection-Based Harmonic Signal Removal for Operational Modal Analysis, excited with both random white and periodic excitations. Second, a full-scale industrial case of a ferry excited by a random environmental load with harmonic interference from a rotating machinery on-board. In both cases the proposed method removes the harmonics from the structural responses while leaving the random part of the output signal.

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Implementation of Piezoelectric Shape Sensors Using Digital Image Correlation, coordinates from the DIC data. The shape sensor is then implemented by calibrating sensor voltages to the extracted modal coordinates. This extended abstract presents the procedure and results of this methodology on a beam instrumented with rectangular piezoelectric sensors of arbitrary length.

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A Modification to Unified Matrix Polynomial Approach (UMPA) for Modal Parameter Identification,imental data of a circular plate are then employed to investigate the enhancement in performance of UMPA framework due to the proposed modification. It will be shown that following the proposed data manipulation, matrices with large values of condition number can be avoided in modal parameter estimation.