Results 11 to 20 of about 1,223,178 (264)

Local polynomial method for frequency response function identification

open access: yesSystems Science & Control Engineering, 2020
Here we propose the local polynomial method to solve the problem of estimating the frequency response function in the linear system. Compared with other nonparametric identification methods based on the windowing strategies, this new identification ...
Dong Xiguang   +2 more
doaj   +1 more source

Effects of Internal Boundary Layers and Sensitivity on Frequency Response of Shells of Revolution

open access: yesVibration, 2023
New applications introduced capsule designs with features that have not been fully analysed in the literature. In this study, thin shells of revolution are used to model drug delivery capsules both with closed and open designs including perforations. The
Harri Hakula
doaj   +1 more source

Dynamic characteristics of monostable acoustic metamaterial absorber

open access: yesXi'an Gongcheng Daxue xuebao, 2022
Given at the problem of narrow low-frequency absorption bandwidth of monostable acoustic metamaterial absorber, the Lindstedt-Poincare method was applied to investigate the vibration response and frequency amplitude response characteristics of the ...
YANG Sen   +3 more
doaj   +1 more source

THE METOD OF SYNTHESIS OF QUASI-DUAL-BAND MATCHING DEVICE

open access: yesДоклады Белорусского государственного университета информатики и радиоэлектроники, 2020
The article presents some findings on the potential of analytical methods for the synthesis of broadband matching circuits for solving nontrivial circuit engeneering problems.
M. A. Yantsevich, H. A. Filipovich
doaj   +1 more source

Pyroshock Response Prediction of Spacecraft Structure in Wide Frequency Domain Based on Acceleration FRF

open access: yesAerospace, 2022
The initiating explosive shock environment of an aerospace mission has the characteristics of instantaneity, high amplitude and a wide frequency domain.
Xiong Wang   +4 more
doaj   +1 more source

A novel frequency response analysis model applicable to high-penetration wind power grid

open access: yesEnergy Reports, 2022
The decoupling relationship and low inertia characteristics of wind turbine generator system (WTGS) make the system frequency response more complex. In order to evaluate the frequency stability of high-penetration wind power grid, it is significant to ...
Yi Hu   +3 more
doaj   +1 more source

Step response and frequency response methods

open access: yesAutomatica, 1979
Abstract In this tutorial very simple methods will be presented by which models for dynamic processes can be obtained. These methods employ step responses of the process or responses to other nonperiodic testsignals or process responses to periodic signals.
openaire   +1 more source

Improved Identification Method for Equivalent Network Parameters of Transformer Windings Based on Driving Point Admittance

open access: yesIEEE Access
To accurately and efficiently determine the operating state of transformers, based on the driving point admittance method, a trapezoidal equivalent network model for dual-windings transformers was established.
Yi Liu, Xiaobo Pei
doaj   +1 more source

Statistical analysis amplitude-frequency characteristics of power transformer windings in operation

open access: yesИзвестия высших учебных заведений: Проблемы энергетики, 2017
In the work is given a statistical analysis of power transformer’s testing results obtained by using frequency response analysis method. The research has been done from the amplitude-frequency characteristics of low voltage windings for twelve ...
M. .. Ndayizeye   +2 more
doaj   +1 more source

Transfer Learning Based Method for Frequency Response Model Updating with Insufficient Data

open access: yesSensors, 2020
Finite element model updating precision depends heavily on sufficient vibration feature extraction. However, adequate amount of sample collection is generally time-consuming in frequency response (FR) model updating. Accurate vibration feature extraction
Zhongmin Deng, Xinjie Zhang, Yanlin Zhao
doaj   +1 more source

Home - About - Disclaimer - Privacy