Results 1 to 10 of about 1,806,397 (284)

Parameter Identification of Model for Piezoelectric Actuators [PDF]

open access: yesMicromachines, 2023
Piezoelectric actuators are widely used in high-precision positioning systems. The nonlinear characteristics of piezoelectric actuators, such as multi-valued mapping and frequency-dependent hysteresis, severely limit the advancement of the positioning ...
Dongmei Liu   +4 more
doaj   +2 more sources

Parameter Identification of DFIG Converter Control System Based on WOA

open access: yesEnergies, 2023
The converter is an important component of a wind turbine, and its control system has a significant impact on the dynamic output characteristics of the wind turbine.
Youtao Li   +4 more
doaj   +1 more source

Low Voltage Induction Motor Traction Drive Self-Commissioning Technique with the Advanced Measured Signal Processing Procedure

open access: yesEnergies, 2021
In this paper, the enhanced auto-tuning technique based on the injection of two sinusoidal test signals of different frequencies applicable on the low voltage induction motor self-commissioning process is presented.
Mladen Vučković   +4 more
doaj   +1 more source

Parameter Identification of Asynchronous Load Nodes

open access: yesEnergies, 2023
Asynchronous loads (AL), because of their low negative-sequence resistance, produce the effect of reduced unbalance at their connection points. Therefore, proper modeling of unbalanced load flows in power supply systems requires properly accounting for ...
Andrey Kryukov   +3 more
doaj   +1 more source

The Effects of Icing on Aircraft Longitudinal Aerodynamic Characteristics

open access: yesMathematics, 2020
To study the effects of ice accretion on the longitudinal aerodynamic characteristics of an aircraft, a two-part method for predicting longitudinal aerodynamic derivatives of iced aircraft is proposed.
Yihua Cao   +4 more
doaj   +1 more source

Dual Mass Flywheel Parameter Identification

open access: yesJournal of Mechanical Engineering, 2021
Reducing emissions brings changes in the design of internal combustion engines and thus new challenges for dual-mass flywheels (DMF) in terms of Noise Vibration and Harshness (NVH).
Ľuboš Magdolen   +5 more
doaj   +1 more source

Research on Stiffness Identification Method for Complex Joints Based on Modal Correlation Analysis

open access: yesMachines, 2022
The dynamic performance of mechanical systems is seriously affected by the stiffness of mechanical joints. The tool holder system of the deep hole machine tool was taken as the object; based on the modal correlation of experiment and finite element ...
Ruijiang Yu   +4 more
doaj   +1 more source

Parameter identification using moment of velocity [PDF]

open access: yesRoyal Society Open Science, 2019
Many physical systems can be adequately modelled using a second-order approximation. Thus, the problem of system identification often reduces to the problem of estimating the position of a single pair of complex–conjugate poles.
M. Dorraki   +3 more
doaj   +1 more source

Comparative Study of Global Sensitivity Analysis and Local Sensitivity Analysis in Power System Parameter Identification

open access: yesEnergies, 2023
In the process of parameter identification, sensitivity analysis is mainly used to determine key parameters with high sensitivity in the model. Sensitivity analysis methods include local sensitivity analysis (LSA) and global sensitivity analysis (GSA ...
Chuan Qin   +4 more
doaj   +1 more source

Parameter estimation from ICC curves

open access: yesJournal of Biological Dynamics, 2021
Incidence vs. Cumulative Cases (ICC) curves are introduced and shown to provide a simple framework for parameter identification in the case of the most elementary epidemiological model, consisting of susceptible, infected, and removed compartments.
Joceline Lega
doaj   +1 more source

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