Results 31 to 40 of about 842,020 (274)

Fuzzy model‐based multi‐objective dynamic programming with modified particle swarm optimization approach for the balance control of bicycle robot

open access: yesIET Control Theory & Applications, 2022
Existing studies for the balance control of unmanned bicycle robots only consider constant forward velocity and a single optimal objective that cannot be applied to the complex motion situation.
Yiyong Sun   +5 more
doaj   +1 more source

Dynamic Response of Rigid Pavement Under Moving Traffic Load With Variable Velocity

open access: yesThe Baltic Journal of Road and Bridge Engineering, 2012
In this paper, the dynamic response of an infinite plate resting on an elastic foundation subjected to moving traffic load with variable velocity (accelerating or decelerating) is investigated by using a triple Fourier integral transform in time and ...
Yang Zhong, Yuanyuan Gao, Mingliang Li
doaj   +1 more source

Propulsion Performance of the Full-Active Flapping Foil in Time-Varying Freestream

open access: yesApplied Sciences, 2020
A numerical investigation of the propulsion performance and hydrodynamic characters of the full-active flapping foil under time-varying freestream is conducted. The finite volume method is used to calculate the unsteady Reynolds averaged Navier–Stokes by
Zhanfeng Qi   +4 more
doaj   +1 more source

Collision Avoidance and Connectivity Preservation for Time-Varying Formation of Second-Order Multi-Agent Systems With a Dynamic Leader

open access: yesIEEE Access, 2022
In this paper, the problem of time-varying formation tracking control, with collision avoidance (CA) and connectivity preservation (CP), is studied for second-order multi-agent systems.
Ruimin Zhou   +3 more
doaj   +1 more source

Different transport regimes in a spatially-extended recirculating background

open access: yes, 1999
Passive scalar transport in a spatially-extended background of roll convection is considered in the time-periodic regime. The latter arises due to the even oscillatory instability of the cell lateral boundary, here accounted for by sinusoidal ...
Castiglione, P., Festa, R., Mazzino, A.
core   +1 more source

Dynamic boundary controls of a rotating body-beam system with time-varying angular velocity

open access: yesJournal of Applied Mathematics, 2004
This paper deals with feedback stabilization of a flexible beam clamped at a rigid body and free at the other end. We assume that there is no damping and the rigid body rotates with a nonconstant angular velocity.
Boumediène Chentouf
doaj   +1 more source

Tidal Modulation of Ice Streams: Effect of Periodic Sliding Velocity on Ice Friction and Healing

open access: yesFrontiers in Earth Science, 2022
Basal slip along glaciers and ice streams can be significantly modified by external time-dependent forcing, although it is not clear why some systems are more sensitive to tidal stresses.
Christine McCarthy   +2 more
doaj   +1 more source

Target Inference Three-Dimensional Intercept-Angle Guidance With Deep Latent Reinforcement Meta-Learning

open access: yesIEEE Access
In this paper, a novel guidance law is proposed for interception of various types of targets at desired impact angle in three-dimensional coupled dynamics. Impact angles are defined using velocity vectors of missile and target, rather than line-of-sight (
Weihong Wang   +8 more
doaj   +1 more source

Time-dependent Radiation-driven Winds

open access: yes, 2018
We study temporal variability of radiation-driven winds using one-dimensional, time-dependent simulations and an extension of the classic theory of line-driven winds developed by Castor Abbott & Klein.
Dyda, Sergei, Proga, Daniel
core   +2 more sources

Angular velocity nonlinear observer from single vector measurements

open access: yes, 2015
The paper proposes a technique to estimate the angular velocity of a rigid body from single vector measurements. Compared to the approaches presented in the literature, it does not use attitude information nor rate gyros as inputs.
Magnis, Lionel, Petit, Nicolas
core   +4 more sources

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