Results 31 to 40 of about 205,537 (300)

Double Sliding-Surface Multiloop Control Reducing Semiconductor Voltage Stress on the Boost Inverter

open access: yesApplied Sciences, 2020
Sliding-mode control (SMC) has been successfully applied to boost inverters, which solves the tracking problem of imposing sinusoidal behavior to the output voltage despite the coupled or decoupled operation of both boost cells in the converter.
Oswaldo López-Santos, Germain García
doaj   +1 more source

Comparisons between harmonic balance and nonlinear output frequency response function in nonlinear system analysis [PDF]

open access: yes, 2008
By using the Duffing oscillator as a case study, this paper shows that the harmonic components in the nonlinear system response to a sinusoidal input calculated using the Nonlinear Output Frequency Response Functions (NOFRFs) are one of the solutions ...
Billings, S.A.   +3 more
core   +1 more source

Analytical Periodic Solutions for Non-Homogenous Integrable Dispersionless Equations Using a Modified Harmonic Balance Method

open access: yesMathematics
In this study, we outline a modified harmonic balance method for solving non-homogenous integrable dispersionless equations and obtaining the corresponding periodic solutions, a research field which shows limited investigation. This study is the first to
Muhammad Irfan Khan   +2 more
doaj   +1 more source

Analytical technique for solving the quadratic nonlinear oscillator

open access: yesResults in Physics, 2020
Recently, an approximate solution of the quadratic nonlinear oscillator has been presented based on the harmonic balance method. According to this method a set of nonlinear algebraic equations appear among the unknown coefficients of the several harmonic
Ismot Ara Yeasmin   +3 more
doaj   +1 more source

Trajectory Generation for Stair Ascent Walking using Rayleigh Oscillator [PDF]

open access: yes, 2013
This paper describes a trajectory generation technique for stair-ascent walking. The knee, hip and ankle joint trajectory during stair ascent are generated using mutually coupled, nonlinear oscillators.
Afzal, T.   +2 more
core   +3 more sources

Free vibration analysis of nonlinear axially loaded beams using a modified harmonic balance method

open access: yesPartial Differential Equations in Applied Mathematics, 2022
The conventional harmonic balance method utilizes a numerical approach for solving a set of nonlinear algebraic equations to identify the unknown coefficients.
M. Wali Ullah   +2 more
doaj   +1 more source

A Quasi-Linear Harmonic Balance Model for Studying the Performance of Sideband-Separating SIS Receivers

open access: yesIEEE Access
We present a novel modeling technique to accurately simulate the gain, single-sideband noise temperature, and image rejection of a sideband-separating superconductor-insulator-superconductor (SIS) heterodyne receiver.
David Monasterio   +7 more
doaj   +1 more source

An efficient steady-state analysis of the eddy current problem using a parallel-in-time algorithm

open access: yes, 2019
This paper introduces a parallel-in-time algorithm for efficient steady-state solution of the eddy current problem. Its main idea is based on the application of the well-known multi-harmonic (or harmonic balance) approach as the coarse solver within the ...
De Gersem, Herbert   +2 more
core   +1 more source

Charger-mediated energy transfer in exactly-solvable models for quantum batteries [PDF]

open access: yes, 2018
We present a systematic analysis and classification of several models of quantum batteries involving different combinations of two level systems and quantum harmonic oscillators.
Andolina, Gian Marcello   +5 more
core   +2 more sources

Flutter Analysis of the ECL5 Open Fan Testcase Using Harmonic Balance

open access: yesInternational Journal of Turbomachinery, Propulsion and Power
This paper presents a flutter analysis of the UHBR Open Fan Testcase ECL5 for an off-design point at part speed and focuses on the second eigenmode, which has a strong torsional character near the blade tip.
Christian Frey   +3 more
doaj   +1 more source

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