Results 21 to 30 of about 842,020 (274)
IEEE Access, 2020 In this paper, active suspension system is selected as the research object. Back-stepping method is adopted, and virtual fault tolerant controller, main fault tolerant controller and adaptive law are designed by constructing Time-varying Barrier Lyapunov
Yong Zhang, Lei Liu
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A Novel Adaptive Two-Stage Information Filter Approach for Deep-Sea USBL/DVL Integrated Navigation
Sensors, 2020 An accurate observation model and statistical model are critical in underwater integrated navigation. However, it is often the case that the statistical characteristics of noise are unknown through the ultra-short baseline (USBL) system/Doppler velocity ...
Kaifei He, Huimin Liu, Zhenjie Wang
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An automatic dynamic balancer in a rotating mechanism with time-varying angular velocity
Results in Applied Mathematics, 2019 We consider the system of a two ball automatic dynamic balancer attached to a rotating disc with nonconstant angular velocity. We directly compare the scenario of constant angular velocity with that when the acceleration of the rotor is taken into ...
James A. Wright, Linyu Peng
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Field dependence of electronic recoil signals in a dual-phase liquid xenon time projection chamber [PDF]
, 2018 We present measurements of light and charge signals in a dual-phase time projection chamber at electric fields varying from 10 V/cm up to 500 V/cm and at zero field using 511 keV gamma rays from a $^{22}$Na source.
Colijn, A. P. +3 more
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Adaptive Polynomial Guidance With Impact Angle Constraint Under Varying Velocity
IEEE Access, 2019 Considering the velocity of the missile cannot remain constant in most applications due to the effect of aerodynamic drag and thrust, a feasible adaptive impact angle control guidance law under varying velocity is proposed.
Zhongtao Cheng +3 more
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Research on Performance Evaluation of Tidal Energy Turbine under Variable Velocity
Energies, 2020 Aiming at the performance evaluation problem of tidal energy turbines in the application of periodic time-varying flow velocity, with the goal of maximizing the efficiency of energy harvesting in practical applications, an evaluation system combining the
Chuhua Jiang +4 more
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Alexandria Engineering Journal, 2023 In this paper, we analyse the effect of an inclined magnetic field on the flow of a fluid film near an unsteady moving surface, by describing the time-varying stretching velocity of the moving surface as Uw=Ax/t. The Navier–Stokes equations governing the
K.C. Shobha +4 more
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Helical rotating turbulence. Part II. Intermittency, scale invariance and structures [PDF]
, 2009 We study the intermittency properties of the energy and helicity cascades in two 1536^3 direct numerical simulations of helical rotating turbulence. Symmetric and anti-symmetric velocity increments are examined, as well as probability density functions ...
A. Pouquet +5 more
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Sensors, 2022 The performances of position synchronization and force interaction of the teleoperation system provide a safe and efficient way for operators to perform tasks in remote, hazardous environments.
Kesong Chen, Haochen Zhang
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Classical and Quantum-like approaches to Charged-Particle Fluids in a Quadrupole [PDF]
, 2001 A classical description of the dynamics of a dissipative charged-particle fluid in a quadrupole-like device is developed. It is shown that the set of the classical fluid equations contains the same information as a complex function satisfying a ...
Chen F F +15 more
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