Results 271 to 280 of about 7,683,030 (332)

Mode Shape Identification and Orthogonalization

AIAA Journal, 1988
An identification procedure to improve the mass-weighted orthogonality of measured mode shapes is introduced. The procedure takes into account the degree of mode isolation present during measurement. This is accomplished by establishing a set of new mode shapes, from the measured vectors, that satisfy cross-orthogonality constraints and are a minimum ...
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Experimental Method for Extracting Dominant Suspension Mode Shapes Coupled with Automotive Interior Acoustic Mode Shapes

SAE Technical Paper Series, 2014
<div class="section abstract"><div class="htmlview paragraph">A finite element (FE) model of vibro-acoustic coupling analysis, such as a vehicle noise and vibration, is utilized for the improvement of the performance in the vehicle development phase. However, the accuracy of the analysis is not enough for substituting a prototype phase with
Hiromichi Tsuji, Satoshi Takabayashi, Eiji Takahashi, Hitoshi Murakami, Shinichi Maruyama   +4 more
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The mode shapes of a tennis racket and the effects of vibration dampers on those mode shapes

The Journal of the Acoustical Society of America, 2009
The vibrational behavior of a tennis racket was studied using a speckle-pattern interferometry system. Specifically, the first 12 mode shapes of a racket are shown and discussed. In addition, the speckle-pattern interferometry system was used to compare the effects of four commercially available vibration damping systems.
Nicholas, Timme, Andrew, Morrison
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Antenna shape synthesis using characteristic modes

IEEE Transactions on Antennas and Propagation, 1982
An initial effort is described to develop an antenna synthesis procedure by which the shape of a surface of rotation and its current density are deduced from a given far-field radiation pattern which satisfies the conditions of a characteristic mode.
R. Garbacz, D. Pozar
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Damage Detection in Laminated Composite Beams Reinforced with Nano-particles Using Covariance of Vibration Mode Shape and Wavelet Transform

Journal of Vibration Engineering & Technologies, 2023
Morteza Saadatmorad, Mohammad Hassan Shahavi, A. Gholipour   +2 more
semanticscholar   +1 more source

An enhanced mode shape identification algorithm

30th Structures, Structural Dynamics and Materials Conference, 1989
A mode shape identification algorithm is developed which is characterized by a low sensitivity to measurement noise and a high accuracy of mode identification. The algorithm proposed here is also capable of identifying the mode shapes of structures with significant damping.
MICHAEL ROEMER, D. MOOK
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Intracavity temporal shaping and mode-locking

Advanced Solid State Lasers, 2000
An all-optical laser system is shown : intracavity spectral filtering connected with quadratic polarization switching provides high efficiency temporal pulse shaping.
V. Couderc, V. Kermène, A. Desfarges-Berthelemot, L. Grossard, M. Tondusson, B. Colombeau   +5 more
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Mode Shape Recognition of Complicated Spatial Beam-Type Structures via Polynomial Shape Function Correlation

Experimental techniques (Westport, Conn.), 2021
Y. Chen, D. Griffith
semanticscholar   +1 more source

Multiple Damage Identification in a Beam Using Artificial Neural Network-Based Modified Mode Shape Curvature

The Arabian journal for science and engineering, 2021
S. Gupta, Surajit Das
semanticscholar   +1 more source

Experimental and numerical study of high-order complex curvature mode shape and mode coupling on a three-bladed wind turbine assembly

, 2021
Yuanchang Chen, A. Mendoza, D. Griffith
semanticscholar   +1 more source