Results 21 to 30 of about 4,906 (214)

The Basics of Time-Domain-Based Milling Stability Prediction Using Frequency Response Function

open access: yesJournal of Manufacturing and Materials Processing, 2020
This study presents the fundamentals of the usage of frequency response functions (FRF) directly in time-domain-based methods. The methodology intends to combine the advantages of frequency- and time-domain-based techniques to determine the stability of ...
Zoltan Dombovari   +2 more
doaj   +1 more source

METHOD OF SIMULTANEOUS OPTIMIZATION OF RADIO DEVICES PERFORMANCE IN FREQUENCY AND TIME DOMAINS

open access: yesРоссийский технологический журнал, 2018
A new method of searching for optimal transfer functions of radio circuits and devices was developed. This method allows optimizing performance in the frequency and time domain simultaneously. These tasks cannot be solved by analytical methods.
A. V. Smirnov
doaj   +1 more source

Frequency Response Function Measurement on Simplified Disc Brake Model

open access: yesJournal of Mechanical Engineering, 2018
The paper describes role of non-proportional damping in flutter type instability, demonstrated on simplified disc brake model. The discrete two degrees of freedom system is considered to imply damping induced instability through a system eigenvalues ...
Juraj Úradníček   +2 more
doaj   +1 more source

A study on the loss factor identification for metallic materials and application for damping performance evaluation of laminated metal subject to heat treatment.

open access: yesNihon Kikai Gakkai ronbunshu, 2022
Several standards or manuals are available for the test methods of damping capacity of damping materials such as composites or laminated damping steel sheets; however, few documents focus on lightly damped materials like metallic alloys.
Yuki SASAGE   +3 more
doaj   +1 more source

Wavelet-Based Frequency Response Function: Comparative Study of Input Excitation

open access: yesShock and Vibration, 2014
Time-variant systems can be found in many areas of engineering. It is widely accepted that the classical Fourier-based methods are not suitable for the analysis and identification of such systems. The time-variant frequency response function—based on the
K. Dziedziech, W. J. Staszewski, T. Uhl
doaj   +1 more source

Adaptive Probabilistic Optimization Approach for Vibration-Based Structural Health Monitoring

open access: yesSignals, 2021
This paper presents a novel adaptive probabilistic algorithm to identify damage characteristics by integrating the use of the frequency response function with an optimization approach.
Hussain Altammar, Sudhir Kaul
doaj   +1 more source

Simultaneous Analysis of Vibrations and Noise in the Task of Minimizing Vibroacoustic Activity of Machines

open access: yesArchives of Acoustics, 2016
Simultaneous propagation of vibrations and noise has an important role in the task of minimizing vibroacoustic hazards on the station of operator of the construction machinery.
Zbigniew DĄBROWSKI, Jacek DZIURDŹ
doaj   +1 more source

An Estimation of Precipitation Retention Time Using Depth Metres in the Northern Basin of Lake Biwa

open access: yesAtmosphere, 2022
To facilitate climate change adaptations and water management, estimates of precipitation retention time (time required for precipitation to reach a lake) can help to accurately determine a water body’s terrestrial water storage capacity and water cycle.
Maho Iwaki   +2 more
doaj   +1 more source

Binaural frequency response function [PDF]

open access: yesThe Journal of the Acoustical Society of America, 1976
The relative sensitivity of the binaural lateralization process to neighboring frequencies was measured using 50-Hz bandwidth noise bursts. The 300-msec bursts had 16 pure tone components spaced 3.33 Hz apart and in random phase. Bursts had center frequencies of 100, 200, 300, or 400 Hz.
openaire   +1 more source

Identification of damage based on frequency response function (FRF) data

open access: yesMATEC Web of Conferences, 2017
Mechanical joints, particularly fasteners such as bolted joints have a complex non-linear behaviour. The non-linearity might emerge from the material, geometry or by the contacts in the joints.
Sulaiman M. S. A.   +3 more
doaj   +1 more source

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