Results 21 to 30 of about 166,542 (262)

Modeling and Analyzing the Effect of Frequency Variation on Weak Grid-Connected VSC System Stability in DC Voltage Control Timescale

open access: yesEnergies, 2019
The effect of frequency variation on system stability becomes crucial when a voltage source converter (VSC) is connected to a weak grid. However, previous studies lack enough mechanism cognitions of this effect, especially on the stability issues in DC ...
Hui Yang, Xiaoming Yuan
doaj   +1 more source

Short-Term Comparison of Several Solutinos of Elliptic Relative Motion [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2007
Recently introduced, several explicit solutions of relative motion between neighboring elliptic satellite orbits are reviewed. The performance of these solutions is compared with an analytic solution of the general linearized equation of motion.
Jung Hyun Jo   +3 more
doaj   +1 more source

The equation of motion of an electron [PDF]

open access: yesPhysics Letters A, 2003
The claim by Rohrlich that the Abraham-Lorentz-Dirac equation is not the correct equation for a classical point charge is shown to be incorrect and it is pointed out that the equation which he proposes is the equation {\underline{derived}} by Ford and O'Connell for a charge with structure. The quantum-mechanical case is also discussed.
openaire   +3 more sources

Holonomicity analysis of electromechanical systems

open access: yesOpen Physics, 2017
Electromechanical systems are described using state variables that contain electrical and mechanical components. The equations of motion, both electrical and mechanical, describe the relationships between these components.
Wcislik Miroslaw, Suchenia Karol
doaj   +1 more source

SELECTION OF RATIONAL PARAMETERS OF THE NOMINAL MODE ELECTRIC TRAINS WITH ASYNCHRONOUS TRACTION DRIVE

open access: yesNauka ta progres transportu, 2017
Purpose. Parameters of the nominal mode are related to the most important performance indicators of traction means, therefore, the problems of choosing their optimal values always inevitably arise when forming technical requirements for a new rolling ...
H. K. Hetman, S. L. Marikutsa
doaj   +1 more source

DESIGN OF ROV STRAIGHT MOTION CONTROL USING PROPORTIONAL SLIDING MODE CONTROL METHOD

open access: yesBarekeng, 2022
The development of underwater defense technology is commonly related to its usage for security and defense of a country. The need of NKRI (the Republic of Indonesia) for an applicable and multifunctional technology for highly improved unmanned submarines
Firman Yudianto   +4 more
doaj   +1 more source

Comparison of Power Output Estimates in Treadmill Roller-Skiing

open access: yesProceedings, 2018
The purpose of this study was to evaluate and compare various power output estimates and estimate anaerobic energy supply during treadmill roller-skiing.
David Sundström   +2 more
doaj   +1 more source

A New MEMS Gyroscope Used for Single-Channel Damping

open access: yesSensors, 2015
The silicon micromechanical gyroscope, which will be introduced in this paper, represents a novel MEMS gyroscope concept. It is used for the damping of a single-channel control system of rotating aircraft.
Zengping Zhang   +3 more
doaj   +1 more source

Self-similarity in the equation of motion of a ship

open access: yesInternational Journal of Naval Architecture and Ocean Engineering, 2014
If we want to analyze the motion of a body in fluid, we should use rigid-body dynamics and fluid dynamics together. Even if the rigid-body and fluid dynamics are each self-consistent, there arises the problem of self-similar structure in the equation of ...
Gyeong Joong Lee
doaj   +3 more sources

Simplified modelling and eigenvalue analysis of coupling system between tire and wheel

open access: yesNihon Kikai Gakkai ronbunshu, 2016
The demands for reduction of noise, vibration and harshness in the vehicle are getting increased in these years. In order to achieve the demands, the most efficient way is to reduce the input to the vehicle body.
Masami MATSUBARA   +3 more
doaj   +1 more source

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