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Journal articles on the topic '3D vibrometry'

Author: Grafiati

Published: 9 November 2024

Last updated: 31 July 2025

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1

Breaban, Florin, Roger Debuchy, and Didier Defer. "Laser Scanning Vibrometry and Holographic Interferometry Applied to Vibration Study." Applied Mechanics and Materials 801 (October 2015): 303–11. http://dx.doi.org/10.4028/www.scientific.net/amm.801.303.

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The applications of high performance materials in the aerospace and in the automotive technology in the next years need to develop new vibration study, nondestructive testing, predictive maintenance and industrial control methods.The Laser Scanning Vibrometry and Holographic Interferometry methods of vibration study and nondestructive testing by modal analysis are described. The Laser Scanning Vibrometer PSV 400 is made by Polytec GmbH and the PSV software reconstructs the 3D model of the measured micro-deformation of the object. The holographic laser system HLS-3 from Lumonics Inc. has 100 MW

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Orta, Adil Han, Mathias Kersemans, and Koen Van Den Abeele. "On the Identification of Orthotropic Elastic Stiffness Using 3D Guided Wavefield Data." Sensors 22, no. 14 (2022): 5314. http://dx.doi.org/10.3390/s22145314.

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Scanning laser Doppler vibrometry is a widely adopted method to measure the full-field out-of-plane vibrational response of materials in view of detecting defects or estimating stiffness parameters. Recent technological developments have led to performant 3D scanning laser Doppler vibrometers, which give access to both out-of-plane and in-plane vibrational velocity components. In the present study, the effect of using (i) the in-plane component; (ii) the out-of-plane component; and (iii) both the in-plane and out-of-plane components of the recorded vibration velocity on the inverse determinati

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Parikesit, Gea O. F., and Indraswari Kusumaningtyas. "How to use 3D shadows for simple microscopy and vibrometry." Physics Education 52, no. 4 (2017): 045026. http://dx.doi.org/10.1088/1361-6552/aa74aa.

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4

Grigg, S., M. Pearson, R. Marks, C. Featherston, and R. Pullin. "Assessment of Damage Detection in Composite Structures Using 3D Vibrometry." Journal of Physics: Conference Series 628 (July 9, 2015): 012101. http://dx.doi.org/10.1088/1742-6596/628/1/012101.

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Weekes, Ben, and David Ewins. "Multi-frequency, 3D ODS measurement by continuous scan laser Doppler vibrometry." Mechanical Systems and Signal Processing 58-59 (June 2015): 325–39. http://dx.doi.org/10.1016/j.ymssp.2014.12.022.

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Marks, Ryan, Clare Gillam, Alastair Clarke, Joe Armstrong, and Rhys Pullin. "Damage detection in a composite wind turbine blade using 3D scanning laser vibrometry." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 231, no. 16 (2016): 3024–41. http://dx.doi.org/10.1177/0954406216679612.

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As worldwide wind energy generation capacity grows, there is an increasing demand to ensure structural integrity of the turbine blades to maintain efficient and safe energy generation. Currently, traditional non-destructive testing methods and visual inspections are employed which require the turbine to be out-of-operation during the inspection periods, resulting in costly and lengthy downtime. This study experimentally investigates the potential for using Lamb waves to monitor the structural integrity of a composite wind turbine blade that has been subject to an impact representative of damag

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Sokołowski, Jacek, Adam Orłowski, Robert Bartoszewicz, et al. "Quantitative analysis of 3D-printed custom ossicular prostheses motion using laser Doppler vibrometry." Otolaryngologia Polska 77, no. 6 (2024): 23–30. http://dx.doi.org/10.5604/01.3001.0053.9038.

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<b><br>Introduction:</b> In chronic otitis media, the reconstruction of the middle ear's sound conducting system involves repairing the tympanic membrane and filling the space between ossicular chain remnants. The final shape of the prosthesis is usually determined intraoperatively. However, the ossicular chain may be preoperatively measured using computed tomography (CT) scans, and an individualized prosthesis can be designed. Custom 3D printing seems to be an attractive solution for optimal adjustment.</br> <b><br>Aim:</b> Our study aimed to assess t

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Derusova, Daria A., Vladimir P. Vavilov, Nikolay V. Druzhinin, Victor Y. Shpil’noi, and Alexey N. Pestryakov. "Detecting Defects in Composite Polymers by Using 3D Scanning Laser Doppler Vibrometry." Materials 15, no. 20 (2022): 7176. http://dx.doi.org/10.3390/ma15207176.

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The technique of 3D scanning laser Doppler vibrometry has recently appeared as a promising tool of nondestructive evaluation of discontinuity-like defects in composite polymers. The use of the phenomenon of local defect resonance (LDR) allows intensifying vibrations in defect zones, which can reliably be detected by means of laser vibrometry. The resonance acoustic stimulation of structural defects in materials causes compression/tension deformations, which are essentially lower than the material tensile strength, thus proving a nondestructive character of the LDR technique. In this study, the

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Marks, Ryan, Alastair Clarke, Carol Featherston, Christophe Paget, and Rhys Pullin. "Lamb Wave Interaction with Adhesively Bonded Stiffeners and Disbonds Using 3D Vibrometry." Applied Sciences 6, no. 1 (2016): 12. http://dx.doi.org/10.3390/app6010012.

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Crua, Cyril, and Morgan R. Heikal. "Time-resolved fuel injector flow characterisation based on 3D laser Doppler vibrometry." Measurement Science and Technology 25, no. 12 (2014): 125301. http://dx.doi.org/10.1088/0957-0233/25/12/125301.

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11

Scislo, Lukasz. "Single-Point and Surface Quality Assessment Algorithm in Continuous Production with the Use of 3D Laser Doppler Scanning Vibrometry System." Sensors 23, no. 3 (2023): 1263. http://dx.doi.org/10.3390/s23031263.

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In the current economic situation of many companies, the need to reduce production time is a critical element. However, this cannot usually be carried out with a decrease in the quality of the final product. This article presents a possible solution for reducing the time needed for quality management. With the use of modern solutions such as optical measurement systems, quality control can be performed without additional stoppage time. In the case of single-point measurement with the Laser Doppler Vibrometer, the measurement can be performed quickly in a matter of milliseconds for each product

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Staszewski, W. J., B. C. Lee, and R. Traynor. "Fatigue crack detection in metallic structures with Lamb waves and 3D laser vibrometry." Measurement Science and Technology 18, no. 3 (2007): 727–39. http://dx.doi.org/10.1088/0957-0233/18/3/024.

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Pedrini, G., S. Schedin, and H. J. Tiziani. "Pulsed digital holography combined with laser vibrometry for 3D measurements of vibrating objects." Optics and Lasers in Engineering 38, no. 3-4 (2002): 117–29. http://dx.doi.org/10.1016/s0143-8166(02)00005-2.

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Kim, Wihan, Derek Liu, Sangmin Kim, et al. "Vector of motion measurements in the living cochlea using a 3D OCT vibrometry system." Biomedical Optics Express 13, no. 4 (2022): 2542. http://dx.doi.org/10.1364/boe.451537.

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15

Filippov, Andrey V., Vladimir A. Krasnoveikin, Nikolay V. Druzhinin, and Valery E. Rubtsov. "The Use of Laser-Doppler Vibrometry for Modal Analysis of Carbon-Fiber Reinforced Composite." Key Engineering Materials 712 (September 2016): 313–18. http://dx.doi.org/10.4028/www.scientific.net/kem.712.313.

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Both modal analysis procedure and the results obtained on a three-component 3D-printed carbon-fiber reinforced composite (CFRC) are presented. Experimental modal analysis of on the composite has been carried out to obtain the dynamic behavior characteristics. As revealed, the different eigen-oscillations waveforms possess different sensitivity of its amplitude frequency response to structural defects of the composite. For the similar waveforms we observed the differences in eigen-oscuillation frequencies, vibration velocities and damping factors which can be caused by the presence of numerous

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Medel, Francisco, Víctor Esteban, and Javier Abad. "On the use of laser-scanning vibrometry for mechanical performance evaluation of 3D printed specimens." Materials & Design 205 (July 2021): 109719. http://dx.doi.org/10.1016/j.matdes.2021.109719.

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Candelaresi, D., A. Annessi, G. Allevi, M. Martarelli, and P. Castellini. "A wavefront track approach to defect detection in composites by scanning laser Doppler vibrometry." Journal of Physics: Conference Series 2698, no. 1 (2024): 012008. http://dx.doi.org/10.1088/1742-6596/2698/1/012008.

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Abstract Composite laminates are becoming increasingly popular in a large variety of applications due to their favourable mechanical properties. However, laminates production processes can lead to various defects in the final material. The most common type is related to thickness variations, e.g. delaminations between layers, which can compromise the mechanical strength of the structure. Therefore, there is a great interest in developing non-destructive and non-contact quality control techniques for composite material assessment to minimize process costs. An interesting approach is the use of

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Lee, Hee Yoon, Patrick D. Raphael, Jesung Park, Audrey K. Ellerbee, Brian E. Applegate, and John S. Oghalai. "Noninvasive in vivo imaging reveals differences between tectorial membrane and basilar membrane traveling waves in the mouse cochlea." Proceedings of the National Academy of Sciences 112, no. 10 (2015): 3128–33. http://dx.doi.org/10.1073/pnas.1500038112.

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Sound is encoded within the auditory portion of the inner ear, the cochlea, after propagating down its length as a traveling wave. For over half a century, vibratory measurements to study cochlear traveling waves have been made using invasive approaches such as laser Doppler vibrometry. Although these studies have provided critical information regarding the nonlinear processes within the living cochlea that increase the amplitude of vibration and sharpen frequency tuning, the data have typically been limited to point measurements of basilar membrane vibration. In addition, opening the cochlea

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19

Zdziebko, Paweł, Mateusz Krzemiński, Maciej Okoń, et al. "An Approach to the Automated Characterization of Out-of-Plane and In-Plane Local Defect Resonances." Materials 16, no. 8 (2023): 3084. http://dx.doi.org/10.3390/ma16083084.

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The paper presents an approach to efficiently detect local defect resonances (LDRs) in solids with localized defects. The 3D scanning laser Doppler vibrometry (3D SLDV) technique is applied to acquire vibration responses on the surface of a test sample due to a broadband vibration excitation applied by a piezoceramic transducer and modal shaker. Based on the response signals and known excitation, the frequency characteristics for individual response points are determined. The proposed algorithm then processes these characteristics to extract both out-of-plane and in-plane LDRs. Identification

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Wang, Chia-Fu, Junghyun Wee, and Kara Peters. "Amplifying Lamb Wave Detection for Fiber Bragg Grating with a Phononic Crystal GRIN Lens Waveguide." Sensors 22, no. 21 (2022): 8426. http://dx.doi.org/10.3390/s22218426.

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This paper demonstrates that a graded-index (GRIN) phononic lens, combined with a channel waveguide, can focus anti-symmetric Lamb waves for extraction by a detector with strong directional sensitivity. Guided ultrasonic wave inspection is commonly applied for structural health monitoring applications; however, obtaining sufficient signal amplitude is a challenge. In addition, fiber Bragg grating (FBG) sensors have strong directional sensitivity. We fabricate the GRIN structure, followed by a channel waveguide starting at the focal point, using a commercial 3D printer and mount it on a thin al

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Aryan, P., A. Kotousov, C. T. Ng, and B. S. Cazzolato. "A baseline-free and non-contact method for detection and imaging of structural damage using 3D laser vibrometry." Structural Control and Health Monitoring 24, no. 4 (2016): e1894. http://dx.doi.org/10.1002/stc.1894.

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Rittmeier, Liv, Thomas Roloff, Natalie Rauter, et al. "Influence of a Flat Polyimide Inlay on the Propagation of Guided Ultrasonic Waves in a Narrow GFRP-Specimen." Materials 15, no. 19 (2022): 6752. http://dx.doi.org/10.3390/ma15196752.

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Structural health monitoring systems for composite laminates using guided ultrasonic waves become more versatile with the structural integration of sensors. However, the data generated within these sensors have to be transmitted from the laminate to the outside, where polyimide-based printed circuit boards play a major role. This study investigates, to what extent integrated polyimide inlays with applied sensor bodies influence the guided ultrasonic wave propagation in glass fiber-reinforced polymer specimens. For reasons of resource efficiency, narrow specimens are used. Numerical simulations

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De Boi, Ivan, Bart Ribbens, Pieter Jorissen, and Rudi Penne. "Feasibility of Kd-Trees in Gaussian Process Regression to Partition Test Points in High Resolution Input Space." Algorithms 13, no. 12 (2020): 327. http://dx.doi.org/10.3390/a13120327.

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Bayesian inference using Gaussian processes on large datasets have been studied extensively over the past few years. However, little attention has been given on how to apply these on a high resolution input space. By approximating the set of test points (where we want to make predictions, not the set of training points in the dataset) by a kd-tree, a multi-resolution data structure arises that allows for considerable gains in performance and memory usage without a significant loss of accuracy. In this paper, we study the feasibility and efficiency of constructing and using such a kd-tree in Ga

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Marks, R., A. Clarke, C. Featherston, L. Kawashita, C. Paget, and R. Pullin. "Using genetic algorithms to optimize an active sensor network on a stiffened aerospace panel with 3D scanning laser vibrometry data." Journal of Physics: Conference Series 628 (July 9, 2015): 012116. http://dx.doi.org/10.1088/1742-6596/628/1/012116.

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Hedayatrasa, Saeid, and Mathias Kersemans. "3D intra-cellular wave dynamics in a phononic plate with ultra-wide bandgap: attenuation, resonance and mode conversion." Smart Materials and Structures 31, no. 3 (2022): 035010. http://dx.doi.org/10.1088/1361-665x/ac4d65.

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Abstract The intra-cellular wave dynamics of a water jetted phononic plate are experimentally investigated by means of high-resolution three-dimensional (3D) scanning laser Doppler vibrometry. The study is focused on the vibrational behavior around the ultra-wide bandgap of the plate (with a relative bandgap width of 0.89), as the critical frequency range of its phononic functionality. Broadband vibrational excitations are applied using a piezoelectric transducer and both in-plane and out-of-plane operational deflection shapes of the unit-cells are analyzed with respect to mode shapes calculat

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Woodrow, Charlie, Ed Baker, Thorin Jonsson, and Fernando Montealegre-Z. "Reviving the sound of a 150-year-old insect: The bioacoustics of Prophalangopsis obscura (Ensifera: Hagloidea)." PLOS ONE 17, no. 8 (2022): e0270498. http://dx.doi.org/10.1371/journal.pone.0270498.

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Determining the acoustic ecology of extinct or rare species is challenging due to the inability to record their acoustic signals or hearing thresholds. Katydids and their relatives (Orthoptera: Ensifera) offer a model for inferring acoustic ecology of extinct and rare species, due to allometric parameters of their sound production organs. Here, the bioacoustics of the orthopteran Prophalangopsis obscura are investigated. This species is one of only eight remaining members of an ancient family with over 90 extinct species that dominated the acoustic landscape of the Jurassic. The species is kno

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Santos, Amélia M., Rui A. S. Moreira, Leonardo S. Caires, et al. "Investigation of the Vibrational Behavior of Thermoformed Magnetic Piezoelectrets." Polymers 17, no. 11 (2025): 1506. https://doi.org/10.3390/polym17111506.

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This study explores the vibrational behavior of Thermoformed Magneto-Piezoelectrets (TMPs), multifunctional materials consisting of thermoformed piezoelectrets with open tubular channels integrated with an additional magnetic layer. The inverse piezoelectric effect was characterized using laser vibrometry analysis, measuring the mechanical response of TMPs subjected to electrical excitation over a frequency range of 0–20 kHz. Vibrational analysis was conducted at 144 spatial points, enabling the construction of detailed three-dimensional (3D) maps of the vibration operational modes and the spa

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Sharma, Arun K., and Bishakh Bhattacharya. "Parameter estimation of butyl rubber aided with dynamic mechanical analysis for numerical modelling of an air-inflated torus and experimental validation using 3D-laser Doppler vibrometer." Journal of Low Frequency Noise, Vibration and Active Control 38, no. 2 (2019): 296–311. http://dx.doi.org/10.1177/1461348419825685.

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Over the few decades, there has been an exponential growth in the application of inflated torus system in the field of space deployable antenna design, solar propulsion, and aerodynamic deceleration system. However, such a system is inherently susceptible to mechanical vibration and hence requires precise modal analysis to produce stable inflatable structures. This paper summarizes all the necessary steps to be followed for dynamic analysis of inflatable structures. With this objective, a butyl rubber-based inflated torus system with dynamic material properties has been considered in this work

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Bouzzit, Aziz, Loïc Martinez, Andres Arciniegas, Stéphane Serfaty, and Nicolas Wilkie-Chancellier. "Ellipsometry of surface acoustic waves using 3D vibrometry for viscoelastic material characterization by the estimation of complex Lamé coefficients versus the frequency." Applied Acoustics 228 (January 2025): 110312. http://dx.doi.org/10.1016/j.apacoust.2024.110312.

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Normandin, Benjamin, and Martin Veidt. "Single Transducer Pair Lamb Wave Time Reversal for Damage Detection in Composite Laminates." Key Engineering Materials 558 (June 2013): 205–17. http://dx.doi.org/10.4028/www.scientific.net/kem.558.205.

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This paper investigates the potential of single transducer pair guided waves time reversal to detect damage in composite laminates. According to dynamic reciprocity of Lamb waves propagation in linear media, the time reversal process should reconstruct the original signal. The similarity of original and reconstructed time signals is calculated for different damage types using numerical and experimental studies with the aim to investigate, if the interaction of the wave pulse with inhomogeneities introduces any nonlinearity that time reversibility breaks down and single transducer pair time rev

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Díaz-García, Lara, Andrew Reid, Joseph Jackson-Camargo, and James Windmill. "Directional passive acoustic structures inspired by the ear of Achroia grisella." Journal of the Acoustical Society of America 152, no. 4 (2022): A92. http://dx.doi.org/10.1121/10.0015652.

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The need for small directional microphones is patent in the current market. From smartphones to hearing aids, a small microphone capable of rejecting ambient noise is highly desirable. Most MEMS microphones are omnidirectional and have to resort to arrays to achieve directionality, effectively counteracting the reduced size that they offer in the first place. For this reason, we use bio-inspiration and turn to nature to find examples of solutions to this problem. The female specimens of the moth Achroia grisella are capable of monoaural directional hearing, which they use to track the males’ m

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Lemma, Enrico Domenico, Francesco Rizzi, Tommaso Dattoma, et al. "Mechanical properties tunability of three- dimensional polymeric structures in two-photon lithography." IEEE Transactions on Nanotechnology 16, no. 1 (2022): 23–31. https://doi.org/10.5281/zenodo.6458264.

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Two-photon (2P) lithography shows great potential for the fabrication of three dimensional micro- and nano- mechanical elements, for applications ranging from microelectromechanical systems to tissue engineering, by virtue of its high resolution (<100nm) and biocompatibility of the photosensitive resists. However, there is a considerable lack of quantitative data on mechanical properties of materials for 2P lithography and of structures obtained through this technique. In this work we combined static and dynamic mechanical analysis on purpose-designed microstructures (microbending of pillar

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Wojtczak, E., M. Rucka, and A. Andrzejewska. "Damage detection in 3D printed plates using ultrasonic wave propagation supported with weighted root mean square calculation and wavefield curvature imaging." Journal of Physics: Conference Series 2647, no. 18 (2024): 182003. http://dx.doi.org/10.1088/1742-6596/2647/18/182003.

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Abstract 3D printing (additive manufacturing, AM) is a promising approach to producing light and strong structures with many successful applications, e.g., in dentistry and orthopaedics. Many types of filaments differing in mechanical properties can be used to produce 3D printed structures, including polymers, metals or ceramics. Due to the simplicity of the manufacturing process, biodegradable polymers are widely used, e.g., polylactide (polylactide – PLA) with a practical application for manufacturing complex-shaped elements. The current work dealt with the application of ultrasonic guided w

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Heinz, Stefan, Frank Balle, Guntram Wagner, and Dietmar Eifler. "Analysis of fatigue properties and failure mechanisms of Ti6Al4V in the very high cycle fatigue regime using ultrasonic technology and 3D laser scanning vibrometry." Ultrasonics 53, no. 8 (2013): 1433–40. http://dx.doi.org/10.1016/j.ultras.2013.03.002.

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Reid, Andrew, Thibaut Marin-Cudraz, James F. C. Windmill, and Michael D. Greenfield. "Evolution of directional hearing in moths via conversion of bat detection devices to asymmetric pressure gradient receivers." Proceedings of the National Academy of Sciences 113, no. 48 (2016): E7740—E7748. http://dx.doi.org/10.1073/pnas.1615691113.

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Small animals typically localize sound sources by means of complex internal connections and baffles that effectively increase time or intensity differences between the two ears. However, some miniature acoustic species achieve directional hearing without such devices, indicating that other mechanisms have evolved. Using 3D laser vibrometry to measure tympanum deflection, we show that female lesser waxmoths (Achroia grisella) can orient toward the 100-kHz male song, because each ear functions independently as an asymmetric pressure gradient receiver that responds sharply to high-frequency sound

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Skėrys, Paulius, and Rimvydas Gaidys. "A Dynamic Analysis of a Cantilever Piezoelectric Vibration Energy Harvester with Maximized Electric Polarization Due to the Optimal Shape of the Thickness for First Eigen Frequency." Applied Sciences 15, no. 13 (2025): 7525. https://doi.org/10.3390/app15137525.

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This study presents an analytical and experimental approach to enhance cantilever-based piezoelectric energy harvesters by optimizing thickness distribution. Using a gradient projection algorithm within a state-space framework, the unimorph beam’s geometry is tailored while constraining the first natural frequency. The objective is to amplify axial strain within the piezoelectric layers, thereby increasing electric polarization and maximizing the conversion efficiency of mechanical vibrations into electrical energy. The steady-state response under harmonic base excitation at resonance was mode

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Shen, Zhiyuan, Thomas R. Neil, Daniel Robert, Bruce W. Drinkwater, and Marc W. Holderied. "Biomechanics of a moth scale at ultrasonic frequencies." Proceedings of the National Academy of Sciences 115, no. 48 (2018): 12200–12205. http://dx.doi.org/10.1073/pnas.1810025115.

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The wings of moths and butterflies are densely covered in scales that exhibit intricate shapes and sculptured nanostructures. While certain butterfly scales create nanoscale photonic effects, moth scales show different nanostructures suggesting different functionality. Here we investigate moth-scale vibrodynamics to understand their role in creating acoustic camouflage against bat echolocation, where scales on wings provide ultrasound absorber functionality. For this, individual scales can be considered as building blocks with adapted biomechanical properties at ultrasonic frequencies. The 3D

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Ruiz-Díez, Víctor, Jorge Hernando-García, Javier Toledo, Abdallah Ababneh, Helmut Seidel, and José Luis Sánchez-Rojas. "Bidirectional Linear Motion by Travelling Waves on Legged Piezoelectric Microfabricated Plates." Micromachines 11, no. 5 (2020): 517. http://dx.doi.org/10.3390/mi11050517.

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This paper reports the design, fabrication and performance of MEMS-based piezoelectric bidirectional conveyors featuring 3D printed legs, driven by linear travelling waves (TW). The structures consisted of an aluminium–nitride (AlN) piezoelectric film on top of millimetre-sized rectangular thin silicon bridges and two electrode patches. The position and size of the patches were analytically optimised for TW generation in three frequency ranges: 19, 112 and 420 kHz, by the proper combination of two contiguous flexural modes. After fabrication, the generated TW were characterized by means of Las

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Li, Jia, Liujie Ren, Tongge Wu, et al. "Experimental and Numerical Studies on Vibration Modes and Transcranial Attenuation Characteristics in Unilateral Bone Conduction Hearing." Shock and Vibration 2020 (June 1, 2020): 1–17. http://dx.doi.org/10.1155/2020/4962098.

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Bone conduction (BC) hearing devices have been used to improve hearing in patients with unilateral conductive hearing loss; however, the clinical results of improvement in the sound localization ability are still controversial. Transcranial transmission in BC may be an important factor affecting sound localization abilities. Transcranial or interaural attenuation, derived from energy attenuation during the BC process, is determined by the different transfer functions of multiple pathways and affected by the whole-head vibration modes. The purpose of this study is to analyze the frequency depen

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Holmes, Lewis B., Charlie Woodrow, Fabio A. Sarria-S, Emine Celiker, and Fernando Montealegre-Z. "Wing mechanics and acoustic communication of a new genus of sylvan katydid (Orthoptera: Tettigoniidae: Pseudophyllinae) from the Central Cordillera cloud forest of Colombia." PeerJ 12 (June 28, 2024): e17501. http://dx.doi.org/10.7717/peerj.17501.

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Stridulation is used by male katydids to produce sound via the rubbing together of their specialised forewings, either by sustained or interrupted sweeps of the file producing different tones and call structures. There are many species of Orthoptera that remain undescribed and their acoustic signals are unknown. This study aims to measure and quantify the mechanics of wing vibration, sound production and acoustic properties of the hearing system in a new genus of Pseudophyllinae with taxonomic descriptions of two new species. The calling behaviour and wing mechanics of males were measured usin

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Ding, Chengqiao, Dachen Wang, Zhe Feng, and Di Cui. "Extracting and Modifying the Vibration Characteristic Parameters of Watermelon Based on Experimental Modal Measurement and Finite Element Analysis for Hollow Heart Defect Detection." Journal of the ASABE 65, no. 1 (2022): 151–67. http://dx.doi.org/10.13031/ja.14871.

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HighlightsAn impulse vibration method is proposed to excite watermelon for hollow heart defect detection.Experimental models of watermelon were acquired with 3D scanning laser vibrometry.The relationship between hollow heart defect and vibration characteristic parameters was investigated with finite element analysis.Better prediction of hollow heart defect in watermelon was achieved with the wavelet transform method.Abstract. Hollow heart defect seriously influences the taste and storability of watermelon. In this study, a non-destructive detection system based on an impulse vibration method w

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Weisbecker, H., B. Cazzolato, S. Wildy, S. Marburg, J. Codrington, and A. Kotousov. "Surface Strain Measurements Using a 3D Scanning Laser Vibrometer." Experimental Mechanics 52, no. 7 (2011): 805–15. http://dx.doi.org/10.1007/s11340-011-9545-5.

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Matczak, Joanna, and Kamil Matczak. "Research position for testing the natural frequency of rotor blades using a PSV-500-3D vibrometer." AUTOBUSY – Technika, Eksploatacja, Systemy Transportowe 19, no. 12 (2018): 566–69. http://dx.doi.org/10.24136/atest.2018.453.

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The article presents the possibilities of using a laser vibrometer to perform non-contact vibration measurements, allowing it to be used as a tool for many measuring applications. The authors pointed to the possibilities of effective use of a laser vibrometer in the aviation industry for the purpose of designing the optimal geometry of the rotor blades, studying the impact of vibrations on the work of the blades and, as a consequence, increasing the efficiency and reliability of their work.

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Sels, Seppe, Bart Ribbens, Boris Bogaerts, Jeroen Peeters, and Steve Vanlanduit. "3D model assisted fully automated scanning laser Doppler vibrometer measurements." Optics and Lasers in Engineering 99 (December 2017): 23–30. http://dx.doi.org/10.1016/j.optlaseng.2016.09.007.

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Píštěk, Václav, Pavel Kučera, Oleksij Fomin, Alyona Lovska, and Aleš Prokop. "Acoustic Identification of Turbocharger Impeller Mistuning—A New Tool for Low Emission Engine Development." Applied Sciences 10, no. 18 (2020): 6394. http://dx.doi.org/10.3390/app10186394.

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At present, exhaust gas turbochargers not only form the basis for the economical operation of petrol, diesel or gas engines of all power categories, but also have an irreplaceable role on reducing their emissions. In order to reduce emissions from internal combustion engines, various systems are being developed, all of which have a turbocharger as an important component. Demands on turbocharger system durability and reliability keep growing, which requires the application of increasingly advanced computational and experimental methods at the development beginning of these systems. The design o

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Ren, Zesheng, Yuyong Xiong, Zhike Peng, and Guang Meng. "3D microwave vibrometer: Contactless three-dimensional vibration measurements using microwave radars." Mechanical Systems and Signal Processing 183 (January 2023): 109622. http://dx.doi.org/10.1016/j.ymssp.2022.109622.

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Ohara, Yoshikazu, Marcel C. Remillieux, T. J. Ulrich, et al. "High-resolution 3D phased-array imaging of fatigue cracks using piezoelectric and laser ultrasonic system (PLUS)." Japanese Journal of Applied Physics 61, SG (2022): SG1043. http://dx.doi.org/10.35848/1347-4065/ac48cd.

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Abstract This paper reports the effectiveness of a novel imaging system, piezoelectric and laser ultrasonic system (PLUS), for the three-dimensional (3D) imaging of fatigue cracks with a high-resolution. The PLUS combines a piezoelectric transmitter and the two-dimensional (2D) mechanical scanning of a laser Doppler vibrometer, enabling the 2D matrix array with an ultra-multiple number of receiving points for 3D phased array imaging. After describing the principle and 3D imaging algorithm of PLUS, we show the fundamental 3D imaging capability of the PLUS in a flat-bottom-hole specimen with var

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Khalil, Hossam, Dongkyu Kim, Joonsik Nam, and Kyihwan Park. "Accuracy and noise analyses of 3D vibration measurements using laser Doppler vibrometer." Measurement 94 (December 2016): 883–92. http://dx.doi.org/10.1016/j.measurement.2016.09.003.

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Bouzzit, A., A. Arciniegas, L. Martinez, S. Serfaty, and N. Wilkie-Chancellier. "Material characterization by surface wave parameters extraction using 3D vibrometer and ellipsometry." Journal of Physics: Conference Series 2768, no. 1 (2024): 012001. http://dx.doi.org/10.1088/1742-6596/2768/1/012001.

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Abstract This work focuses on the monitoring of the 3D propagation of ultrasonic surface waves used in non-destructive testing and evaluation. The ellipticity of the movement related to the Rayleigh wave, specifically the H/V parameter, is studied analytically, numerically, and experimentally on an aluminum block. The study involves generating signals from the theoretical harmonic expression of particle displacement issued from Rayleigh wave, carrying out numerical simulations using a finite element method, and generating the Rayleigh wave using a shear contact transducer with a 1 MHz central

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Dolev, Amit, and Selman Sakar. "The dynamics of partially encapsulated microbubbles subjected to ultrasound." Journal of the Acoustical Society of America 153, no. 3_supplement (2023): A52. http://dx.doi.org/10.1121/10.0018133.

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Acoustically excited microbubbles generate various nonlinear forces that can be leveraged in microscale systems for actuation and manipulation. To obtain optimal performances, bubbles should be characterized; however, so far, they were studied indirectly by measuring downstream phenomena. Here, we present a novel scheme to measure the vibrations of a bubble at the water-air interface using a laser vibrometer and the impinging pressure using a hydrophone. A custom-built optical setup couples the vibrometer to an inverted microscope. The microstructures encapsulating the bubbles are 3D nanoprint

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