An international review of laser Doppler vibrometry: Making light work of vibration measurement

SJ Rothberg, MS Allen, P Castellini, D Di Maio… - Optics and Lasers in …, 2017 - Elsevier
In 1964, just a few years after the invention of the laser, a fluid velocity measurement based
on the frequency shift of scattered light was made and the laser Doppler technique was …

[HTML][HTML] Continuous Scanning Laser Vibrometry: A raison d'être and applications to vibration measurements

D Di Maio, P Castellini, M Martarelli, S Rothberg… - Mechanical systems and …, 2021 - Elsevier
Abstract Continuous Scanning Laser Doppler Vibrometry (CSLDV) methods first appeared
in the literature in the early 1990s and over the past three decades they have undergone an …

Output-only modal analysis of linear time-periodic systems with application to wind turbine simulation data

MS Allen, MW Sracic, S Chauhan… - Mechanical Systems and …, 2011 - Elsevier
Many important systems, such as wind turbines, helicopters and turbomachinery, must be
modeled with linear time-periodic equations of motion to correctly predict resonance …

Identification of modal parameters of a model turbine blade with a curved surface under random excitation with a three-dimensional continuously scanning laser …

K Yuan, WD Zhu - Measurement, 2023 - Elsevier
Modal parameters of a model turbine blade with a curved surface excited by white noise are
identified by a novel general-purpose 3D continuously scanning laser Doppler vibrometer …

[HTML][HTML] Speckle noise reduction for structural vibration measurement with laser Doppler vibrometer on moving platform

Y Zeng, A Nunez, Z Li - Mechanical Systems and Signal Processing, 2022 - Elsevier
Speckle noise is a major problem for structural vibration measurements with Laser Doppler
vibrometer on moving platform (LDVom) due to its highly random, frequent, and broadband …

Multicamera measurement system to evaluate the dynamic response of utility‐scale wind turbine blades

P Poozesh, A Sabato, A Sarrafi, C Niezrecki… - Wind …, 2020 - Wiley Online Library
Wind turbine blade certification requires static and fatigue testing at a large‐scale facility
similar to the Wind Technology Testing Center (WTTC) located in Charlestown …

Operational modal analysis of a rotating structure under ambient excitation using a tracking continuously scanning laser Doppler vibrometer system

LF Lyu, WD Zhu - Mechanical Systems and Signal Processing, 2021 - Elsevier
A continuously scanning laser Doppler vibrometer (CSLDV) system is capable of rapidly
obtaining spatially dense vibration measurement by continuously sweeping its laser spot …

Dynamic displacement estimation by fusing LDV and LiDAR measurements via smoothing based Kalman filtering

K Kim, H Sohn - Mechanical Systems and Signal Processing, 2017 - Elsevier
This paper presents a smoothing based Kalman filter to estimate dynamic displacement in
real-time by fusing the velocity measured from a laser Doppler vibrometer (LDV) and the …

Damage identification of beam structures using free response shapes obtained by use of a continuously scanning laser Doppler vibrometer system

YF Xu, DM Chen, WD Zhu - Mechanical Systems and Signal Processing, 2017 - Elsevier
Spatially dense operating deflection shapes and mode shapes can be rapidly obtained by
use of a continuously scanning laser Doppler vibrometer (CSLDV) system, which sweeps its …

A novel demodulation method with a reference signal for operational modal analysis and baseline-free damage detection of a beam under random excitation

LF Lyu, K Yuan, WD Zhu - Journal of Sound and Vibration, 2024 - Elsevier
A novel demodulation method with a reference signal is developed for operational modal
analysis and damage detection of a beam structure under random excitation. The novel …