Results 11 to 20 of about 2,752,589 (303)

Increasing the stability margins using multi-pattern metasails and multi-modal laser beams [PDF]

open access: yesScientific Reports, 2022
Laser-driven metasails can enable reaching velocities far beyond the chemically propelled spacecrafts, which accounts for precise engineering of the acceleration and the stability degree of the lightsail across the Doppler-broadened band.
Mohammadrasoul Taghavi   +1 more
doaj   +2 more sources

Steps to take to enhance gait stability: the effect of stride frequency, stride length, and walking speed on local dynamic stability and margins of stability. [PDF]

open access: yesPLoS ONE, 2013
The purpose of the current study was to investigate whether adaptations of stride length, stride frequency, and walking speed, independently influence local dynamic stability and the size of the medio-lateral and backward margins of stability during ...
Laura Hak   +3 more
doaj   +3 more sources

Classical Stability Margins by PID Control [PDF]

open access: yesCoRR, 2023
Proportional-Integral-Derivative (PID) control has been the workhorse of control technology for about a century. Yet to this day, designing and tuning PID controllers relies mostly on either tabulated rules (Ziegler-Nichols) or on classical graphical techniques (Bode).
Qi Mao 0003   +4 more
openaire   +4 more sources

A Comparative Study of Stability Margins for Walking Machines [PDF]

open access: yesRobotica, 2002
Several static and dynamic stability criteria have been defined in the course of walking robot history. Nevertheless, different applications may require different stability criteria and, to the authors' best knowledge, there is no qualitative classification of such stability measurements.
Elena Garcia, Pablo Gonzalez de Santos
exaly   +4 more sources

Stability Margins of Neural Network Controllers* [PDF]

open access: yes2025 American Control Conference (ACC)
We present a method to train neural network controllers with guaranteed stability margins. The method is applicable to linear time-invariant plants interconnected with uncertainties and nonlinearities that are described by integral quadratic constraints. The type of stability margin we consider is the disk margin. Our training method alternates between
Neelay Junnarkar   +2 more
openaire   +3 more sources

The Effect of Grid-Connected Converter Control Topology on the Diagonal Dominance of Converter Output Impedance

open access: yesIEEE Open Access Journal of Power and Energy, 2023
This work investigates the effect of grid-connected converter topology on equivalent converter output impedance with a specific focus on the diagonal dominance of the impedance matrix across a frequency range.
Callum Henderson   +5 more
doaj   +1 more source

Notes on the margin of stability

open access: yesJournal of Biomechanics, 2023
The concept of the 'extrapolated center of mass (XcoM)', introduced by Hof et al. (2005, J. Biomechanics 38 (1), p. 1-8), extends the classical inverted pendulum model to dynamic situations. The vector quantity XcoM combines the center of mass position plus its velocity divided by the pendulum eigenfrequency.
Carolin Curtze   +2 more
openaire   +3 more sources

Impact of Electric Vehicle Aggregator with Communication Time Delay on Stability Regions and Stability Delay Margins in Load Frequency Control System

open access: yesJournal of Modern Power Systems and Clean Energy, 2021
This paper investigates the impact of electric vehicle (EV) aggregator with communication time delay on stability regions and stability delay margins of a single-area load frequency control (LFC) system.
Ausnain Naveed   +2 more
doaj   +1 more source

Marginal Material Stability [PDF]

open access: yesJournal of Nonlinear Science, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Yury Grabovsky, Lev Truskinovsky
openaire   +2 more sources

EXTENSION OF XENON OSCILLATIONS SAFETY MARGINS USING WEAKLY NONLINEAR STABILITY ANALYSIS [PDF]

open access: yesEPJ Web of Conferences, 2021
Weakly nonlinear stability analysis is applied to study xenon oscillations in nuclear reactors using the approach of multiple time-scales method. This approach allows to characterize the dynamics of the system beyond the Hopf instability point.
Kastin Nir   +3 more
doaj   +1 more source

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