Results 211 to 220 of about 39,844 (267)

Retinal fundus images do not reflect brain volume, provided all predisposing factors influencing brain size are taken into account. [PDF]

Mil Med Res
Finsterer J.
europepmc   +1 more source

Dispersive coupling and dual-mode sensing of a micromechanical resonator. [PDF]

Microsyst Nanoeng
Xia W, Qin J, Lu Y, Chen D, Wang J, Xie B, Chen J.   +6 more
europepmc   +1 more source

Variation patterns of modal characteristics in a CAES multi-shaft integrally geared compressor rotor system under variable operating conditions. [PDF]

Sci Prog
Mao J, Gong J, Yuan Y.
europepmc   +1 more source

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FUZZY MODAL PARAMETERS

Journal of Sound and Vibration, 2000
Abstract In order to identify modal parameters with uncertain experimental data, a non-deterministic identification method based on fuzzy formalism is proposed. The aim is to provide a degree of confidence in the modal parameters identified.
G. PLESSIS, B. LALLEMAND, T. TISON, P. LEVEL   +3 more
openaire   +1 more source

Modal Parameter Identification of Controlled Structures

Journal of Guidance, Control, and Dynamics, 1997
A simple procedure to extract the modal parameters of the closed-loop structural system is proposed. It is formulated by using the extended Kalman filter (EKF) technique. The unknown parameters are eigenfrequencies, damping ratios, mode shapes, and modal masses.
Kasai, Tokio, Komatsu, Keiji, Sano, Masa
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Modal Parameter Analysis of Gyroelastic Continua

Journal of Applied Mechanics, 1986
This paper builds on the theory of gyroelastic dynamics presented in a recent paper by the authors. An elastic continuum with a continuous distribution of stored angular momentum (called gyricity) is considered. We introduce the modal parameters (coefficients) thereof, including integrals of the mode shapes, and show they must satisfy a number of ...
Hughes, P. C., D'Eleuterio, G. M. T.
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Cable Modal Parameter Identification. II: Modal Tests

Journal of Engineering Mechanics, 2009
The cable dynamic stiffness describes the load – deformation behavior that reflects the cable intrinsic dynamic characteristics. It is defined as a ratio of response to excitation and represents a very similar frequency response property to the frequency response function (FRF). Therefore, by fitting both analytical cable dynamic stiffness and measured
Wei-Xin Ren, Wei-Hua Hu
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Modal Parameter Estimation for Piezostructures

Journal of Vibration and Acoustics, 1995
This paper is motivated by the need for consistency between piezostructure measurements and existing modal analysis approaches. Fundamental relationships are developed which reveal that the existing framework of traditional modal analysis approaches can be used to estimate modal parameters which describe the piezostructure dynamics.
D. G. Cole, W. R. Saunders, H. H. Robertshaw   +2 more
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