Results 71 to 80 of about 2,630 (183)

Dynamic Sliding Mode Control Based on Multi-Model Switching Laws for the Depth Control of an Autonomous Underwater Vehicle

open access: yesInternational Journal of Advanced Robotic Systems, 2015
This manuscript presents an improved control algorithm, called Dynamic Sliding Mode Control based on Multiple Models Switching Laws (DSMC-MMSL), for the control of the depth of the studied Autonomous Underwater Vehicle (AUV) system, the diving plane ...
Huanyin Zhou   +3 more
doaj   +1 more source

Particle-based hybrid and multiscale methods for nonequilibrium gas flows

open access: yesAdvances in Aerodynamics, 2019
Over the past half century, a variety of computational fluid dynamics (CFD) methods and the direct simulation Monte Carlo (DSMC) method have been widely and successfully applied to the simulation of gas flows for the continuum and rarefied regime ...
Jun Zhang   +4 more
doaj   +1 more source

Thermally Driven Atmospheric Escape: Transition from Diffusion-limited to Drag-off Escape

open access: yesThe Planetary Science Journal
We examine the transition from diffusion-limited to drag-off escape using a direct simulation Monte Carlo (DSMC) model developed to simulate planetary atmospheres, referred to as Harrah.
Jack C. Evans   +3 more
doaj   +1 more source

Research on double sliding mode adaptive nonlinear control systems based on the U-model

open access: yesAutomatika
In this paper, the problem of high precision control for nonlinear continuous systems with external uncertainties is studied, and the state space expression of continuous time MIMO U-model is presented.
Fengxia Xu   +4 more
doaj   +1 more source

A Method for Estimating the Computational Requirements of DSMC Simulations

open access: yesJournal of Computational Physics, 1999
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

On Adaptive Fractional Dynamic Sliding Mode Control of Suspension System

open access: yesComputation
This paper introduces a novel adaptive control method for suspension vehicle systems in response to road disturbances. The considered model is based on an active symmetry quarter car (SQC) fractional order suspension system (FOSS).
Ali Karami-Mollaee, Oscar Barambones
doaj   +1 more source

Bernoulli Trial (BT) Collision Operator Scheme Family in the Direct Simulation Monte-Carlo (DSMC): Derivation and Evaluation

open access: yesCybernetics and Information Technologies
The Direct Simulation Monte-Carlo (DSMC) method is based on splitting the rarefied gas process evolution into two ballistic and collision steps within a time step.
Padilla Francis   +2 more
doaj   +1 more source

Application of the DSMC Method to Particle Simulation

open access: yesJAPANESE JOURNAL OF MULTIPHASE FLOW, 1994
もう既に聞き飽きた感もあるが、計算機環境の発達によりさまざまな現象が数値シミュレーションにより取り扱われるようになった。混相流のような複雑な流れに対しても、流動を数値シミュレーションにより再現する試みが果敢になされている。最近では、ワークステーションの大幅な能力向上に代表される計算機のダウンサイジングにより、このような数値シミュレーションがより身近なものとなりつつあるのではないだろうか。混相流は時間的および空間的にさまざまなスケールの現象を含んでいるが、計算機の演算能力と記憶容量の増大は、よりミクロな視点に基づくモデルに立脚した数値シミュレーションを可能にする。固気二相流の分野では現在、固体粒子群の運動を個々の粒子レベルでモデル化するラグランジュ型の数値計算が盛んに行われている ...
openaire   +4 more sources

Coordinated Heterogeneous UAVs for Trajectory Tracking and Irregular Payload Transportation Using Sliding Mode Control

open access: yesDrones
Heterogeneous UAVs offer unique advantages in multi-agent systems due to their varying capabilities including (a) different payload capacities, (b) maneuverability, and (c) flight endurance. These properties made them particularly well suited for complex
Umar Farid   +4 more
doaj   +1 more source

Electromagnetic Torque Calculation and Transmission Characteristic of Drum-type Solid Magnetic Couplers

open access: yesJixie chuandong
In order to study the calculation formula of the electromagnetic torque and the transmission characteristics of the drum-type solid magnetic coupler (DSMC), a DSMC with 4 poles is used as the research object.
Yang Chaojun   +4 more
doaj   +2 more sources

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