Results 1 to 10 of about 3,490 (165)

Experimental and Numerical Assessment of the Dynamical Behaviour of a Footbridge Under Human-Induced Loads

MATEC Web of Conferences, 2015
This research aims to perform an experimental and numerical assessment of an existing pedestrian footbridge located in the campus of the State University of Rio de Janeiro (UERJ), Rio de Janeiro/RJ, Brazil.
Santos da Silva José Guilherme, Debona Gilvan Lunz, Rodrigues Gaspar Cássio Marques   +2 more
doaj   +2 more sources

A passivity based nonlinear controller for hybrid DC microgrid with constant power loads [PDF]

Scientific Reports
This study examines the voltage stability challenge in hybrid DC microgrids that power Constant Power Loads (CPLs). Due to uncertainties in both supply and demand, traditional linear controllers are often inadequate, leading to inevitable voltage ...
P. V. Nithara, R Anand, J. Ramprabhakar, V. P. Meena, Baseem Khan   +4 more
doaj   +2 more sources

Starting of knitting machine with the preliminary tense transmissions of occasion

Trudy Odesskogo Politehničeskogo Universiteta, 2014
The article is sanctified to improve method of dynamic calculation of dynamic coefficients of the mechanical systems, the dynamical model of which can be presented by the three-mass row system with the first leading mass at preliminary tension of ...
Віталій Васильович Чабан, Борис Федорович Піпа   +1 more
doaj   +5 more sources

Estimation of the Mechanical Parameters for a Reduced Coupled Flexural–Torsional Beam Model of a Tall Building by a Sub-Structure Approach

Applied Sciences, 2021
The use of equivalent beam models to estimate the dynamical characteristics of complex tall buildings has been investigated by several authors. The main reason is the structural response estimation to stochastic loads, such as wind and earthquake, using ...
Federico Cluni, Stefano Fiorucci, Vittorio Gusella, Massimiliano Gioffrè   +3 more
doaj   +1 more source

A Dynamic Approach for Load Balancing [PDF]

Proceedings of the 4th International ICST Conference on Performance Evaluation Methodologies and Tools, 2009
We study how to reach a Nash equilibrium in a load balanc- ing scenario where each task is managed by a selfish agent and attempts to migrate to a machine which will minimize its cost. The cost of a machine is a function of the load on it. The load on a machine is the sum of the weights of the jobs running on it.
Barth, Dominique, Bournez, Olivier, Boussaton, Octave, Cohen, Johanne   +3 more
openaire   +2 more sources

Robust hybrid nonlinear control approach for stability enhancement of a constant power load DC-DC boost converter

Alexandria Engineering Journal, 2023
This paper presents a robust hybrid super-twisting reaching law-based sliding mode controller in conjunction with a complementing recursive backstepping controller for DC-DC boost converters with constant power loads (CPLs).
Zubaer Alam, Subarto Kumar Ghosh, Abdulhameed Fouad Alkhateeb, Tushar Kanti Roy, Md. Shofiqul Islam, Sajeeb Saha, Mohammad Asif Hussain   +6 more
doaj   +1 more source

Modeling and response analysis of the attitude angles of roadheader for steep coal seam

SN Applied Sciences, 2021
This study presents a dynamical model of the attitude angles of boom-type roadheader, to reveal the response characteristics of the attitude angles in steep coal seam.
Kai Zong, Shichen Fu, Miao Wu
doaj   +1 more source

A Fast Power Calculation Algorithm for Three-Phase Droop-Controlled-Inverters Using Combined SOGI Filters and Considering Nonlinear Loads

Energies, 2022
The power calculation is an indispensable element in droop-controlled inverters because the bandwidth of the measured power has a direct impact on the controller performance.
Mingshen Li, Jose Matas, Jorge El Mariachet, Carlos Gustavo C. Branco, Josep M. Guerrero   +4 more
doaj   +1 more source

Reduced-order dynamic model for droop-controlled inverter/converter-based low-voltage hybrid AC/DC microgrids – Part 2: DC sub-microgrid and power exchange

IET Smart Grid, 2018
This study focuses on reduced-order dynamical modelling of droop controlled converter-based DC sub-microgrid (MG) in a hybrid AC/DC MG. In hybrid MGs, electrical power is exchanged between the AC and DC sub-MGs by a bidirectional AC/DC converter.
Arsalan Rasoolzadeh, Farzad Rajaei Salmasi, Farzad Rajaei Salmasi   +2 more
doaj   +1 more source

On the reliability problems of structures subjected to dynamical loads

Vietnam Journal of Mechanics, 2007
Mechanically, the assessment of the structure's safety relates to three aspects: strength, stability and oscillation. In the oscillation problems of structures, the safety conditions are conditions of frequency, amplitude, resonance, maximum ...
Nguyen Van Pho, Le Ngoc Thach, Chu Thanh Binh   +2 more
doaj   +1 more source