A stiffener structural design method for worktable of heavy-duty vertical lathe by combining modal analysis and topology optimization
Sign Up to like & getrecommendations! Published in 2019 at "Structural and Multidisciplinary Optimization"
DOI: 10.1007/s00158-019-02235-5
Abstract: The structural design for worktable stiffeners plays an important role in determining dynamic characteristic of heavy-duty vertical lathe which directly affects the machining performance. In this paper, a stiffener design method for worktable stiffeners combining… read more here.
Keywords: topology; modal analysis; optimization; design method ... See more keywords
Detection and correction of synchronization-induced errors in operational modal analysis
Sign Up to like & getrecommendations! Published in 2020 at "Archive of Applied Mechanics"
DOI: 10.1007/s00419-020-01683-6
Abstract: Operational modal analysis (OMA) methods are frequently applied for obtaining information on structural dynamic parameters, such as natural frequencies and mode shapes. While synchronization between acceleration response data sets used in OMA is not a… read more here.
Keywords: synchronization induced; induced errors; operational modal; modal analysis ... See more keywords
An Experimental Evaluation of Two Potential Improvements for 3D Laser Vibrometer Based Operational Modal Analysis
Sign Up to like & getrecommendations! Published in 2017 at "Experimental Mechanics"
DOI: 10.1007/s11340-017-0307-x
Abstract: The use of scanning laser doppler vibrometers (SLDV) is common practice in the context with experimental modal analysis. In recent years, commercial 3D SLDV have been developed, where three laser heads simultaneously point to the… read more here.
Keywords: reference signal; modal analysis; operational modal; modal ... See more keywords
Analytical and Experimental Modal Analysis of Electrical Transmission Tower to Study the Dynamic Characteristics and Behaviors
Sign Up to like & getrecommendations! Published in 2020 at "KSCE Journal of Civil Engineering"
DOI: 10.1007/s12205-020-1563-3
Abstract: Experimental modal analysis of electrical transmission tower has been a challenging task for transmission tower researchers and design engineers in industry all over the world. Requirement of large numbers of sensors and accelerometers have been… read more here.
Keywords: modal analysis; tower; experimental modal; transmission tower ... See more keywords
Modal analysis of the input impedance of wind instruments. Application to the sound synthesis of a clarinet
Sign Up to like & getrecommendations! Published in 2018 at "Applied Acoustics"
DOI: 10.1016/j.apacoust.2018.07.018
Abstract: Abstract This paper investigates the modal analysis of wind instruments as seen from the input of their air column. Beside the treatment of analytical models, a particular emphasis is given to the analysis of measured… read more here.
Keywords: synthesis clarinet; analysis; wind instruments; input ... See more keywords
Vision-based modal analysis of cutting tools
Sign Up to like & getrecommendations! Published in 2021 at "Cirp Journal of Manufacturing Science and Technology"
DOI: 10.1016/j.cirpj.2020.11.012
Abstract: Abstract This paper presents the use of vision-based methods for cutting tool motion registration and modal analysis. Motion of three illustrative tools were recorded using low- and high-speed cameras with sufficiently high resolutions. The tool’s… read more here.
Keywords: motion; vision based; analysis; tool ... See more keywords
Multi-scale modeling of triaxial braided composites for FE-based modal analysis of hybrid metal-composite gears
Sign Up to like & getrecommendations! Published in 2017 at "Composite Structures"
DOI: 10.1016/j.compstruct.2017.09.017
Abstract: Abstract The paper presents a description of a methodology to accurately estimate the natural frequencies of a hybrid metal-composite gear, where the web is made of a polymer matrix reinforced with two-dimensional (2D) triaxial braided… read more here.
Keywords: metal composite; based modal; hybrid metal; modal analysis ... See more keywords
Modal analysis of historical masonry structures: Linear perturbation and software benchmarking
Sign Up to like & getrecommendations! Published in 2018 at "Construction and Building Materials"
DOI: 10.1016/j.conbuildmat.2018.09.034
Abstract: Abstract The mechanical behavior of masonry materials has a common feature: a nonlinear behavior with high compressive strength and very low tensile strength. As a consequence, old masonry buildings generally present cracks due to permanent… read more here.
Keywords: modal analysis; linear perturbation; masonry; masonry structures ... See more keywords
Participation factors and sub-Gramians in the selective modal analysis of electric power systems
Sign Up to like & getrecommendations! Published in 2017 at "IFAC-PapersOnLine"
DOI: 10.1016/j.ifacol.2017.08.2560
Abstract: Abstract The solution of Lyapunov equations can be represented as a sum of Hermitian matrices corresponding either to particular eigenvalues of the system matrix, or to pairwise combinations of these eigenvalues. These eigen-parts or sub-Gramians… read more here.
Keywords: participation; selective modal; participation factors; sub gramians ... See more keywords
First Results on Regularized Time-Varying Operational Modal Analysis
Sign Up to like & getrecommendations! Published in 2018 at "IFAC-PapersOnLine"
DOI: 10.1016/j.ifacol.2018.09.112
Abstract: Abstract This paper presents an efficient nonparametric time-varying time domain system identification method for the Operational Modal Analysis (OMA) framework. OMA tackles industrial measurements of vibrating structures in real-life operating conditions without the exact knowledge… read more here.
Keywords: time varying; modal analysis; operational modal; time ... See more keywords
Blind identification of full-field vibration modes of output-only structures from uniformly-sampled, possibly temporally-aliased (sub-Nyquist), video measurements
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Sound and Vibration"
DOI: 10.1016/j.jsv.2016.11.034
Abstract: Enhancing the spatial and temporal resolution of vibration measurements and modal analysis could significantly benefit dynamic modelling, analysis, and health monitoring of structures. For example, spatially high-density mode shapes are critical for accurate vibration-based damage… read more here.
Keywords: resolution; vibration; analysis; temporally aliased ... See more keywords