Results 171 to 180 of about 4,906 (214)

Frequency-Response Functions of Orthotropic Sandwich Plates

Journal of the Aerospace Sciences, 1961
Summary A method is presented for the determination of the frequencyresponse functions of the components of deformation and of stress in orthotropic sandwich plates. It applies to the case of simply supported rectangular plates, loaded by pressure normal to their planes.
Bienick, M. P., Freudenthal, A. M.
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Non-stationary frequency response function

Bulletin of Earthquake Engineering, 2013
Using the Duhamel’s integral concept, a non-stationary frequency response function (complete-FRF) for the dynamic response of a single degree of freedom system initially at rest has been developed. Although the procedure is devised to be applied in the frequency domain, this new function is time dependent and can be employed to calculate the transient ...
Rafael Blázquez, Juana Arias-Trujillo
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Frequency Response Sensitivity Functions for Helicopter Frequency Domain System Identification

Journal of the American Helicopter Society, 1997
This paper addresses some aspects of frequency domain based, state space system identification. A frequency response sensitivity function is developed, and applied to the problem of identifying a coupled rotor-fuselage helicopter model from simulated frequency sweep data.
Christopher Tyler Jones, Roberto Celi
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Convexity of a frequency response are associated with a stable entire function

IEEE Transactions on Automatic Control, 1996
Summary: We extend the convexity results for Hurwitz polynomials reported in [\textit{J. C. Hamann} and \textit{B. R. Barmish}, ``Convexity of frequency response arcs associated with a stable polynomial'', IEEE Trans. Automat. Control 38, No. 6, 904-915 (1993; Zbl 0786.93080)]\ to a large class of entire functions.
Nir Cohen, Jacob Kogan
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The Impulse, Frequency Response and Transfer Functions

International Journal of Electrical Engineering & Education, 1984
Three mathematical characterisations of linear systems are discussed with the aim of clarifying their interrelations and role in predicting responses to given stimuli.
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The High-Frequency Behaviour of Response Functions

1989
The matrix N(z) introduced in the last section is also well suited for the discussion of the low-frequency behavior of the response functions. Of course, N(z) is nothing but the analytic continuation of the memory function N(ω) introduced in (4.24) or, in matrix form, in the context of (5.15) in the upper frequency half plane. It may be considered as a
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Frequency response functions for power and connectivity

Journal of Sound and Vibration, 1995
Abstract Methods of calculating vibratory power transfer for complex structures by using frequency response functions for power are developed. Connectivity theory for mobility functions is employed to determine frequency response functions for power for connected structures and to develop connectivity relations for power transfer by employing ...
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Modeling a response function to frequency of advertising [PDF]

Applied Econometrics, 2010
In this paper we study the impact of the frequency of advertising on the product sales We introduce response function and postulate its properties Parametric classes of functions which can serve as response functions are suggested We use real data on advertising impact to estimate response functions and discuss their ...
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Numerical simulation of frequency response functions

2008
In this work dynamic of simple system is analyzed. General equation of motion are given and frequency response function is derived. Also, frequency response function is obtained using initial velocity as input and displacement as output. Newmark integration scheme is adopted in solution procedure.
Lozina, Željan, Tomac, Ivan, Sedlar, Damir   +2 more
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Frequency Response Function Estimation

2020
A. W. Phillips, R. J. Allemang
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