Results 41 to 50 of about 72,872 (321)

High Performance Direct Gravitational N-body Simulations on Graphics Processing Units -- II: An implementation in CUDA [PDF]

open access: yes, 2007
We present the results of gravitational direct $N$-body simulations using the Graphics Processing Unit (GPU) on a commercial NVIDIA GeForce 8800GTX designed for gaming computers.
Aarseth   +19 more
core   +2 more sources

Research on drivability control in P2.5 hybrid system

open access: yesEnergy Reports, 2021
The control of drivability in this paper contains the clutch start, the engine and motor anti-jerk control during tip in and tip out. First, the fast clutch start is divided into five phases as well as the smooth clutch start: the gear selection phase ...
Junchao Jing   +5 more
doaj   +1 more source

On the Effect of the End-effector Point Trajectory on the Joint ‎Jerk of the Redundant Manipulators [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2021
This paper is focused on investigating the joints jerk of industrial serial redundant manipulators with 6 degrees of freedom (6-DOF) under the variation of the end-effector point (EEP) trajectory in the workspace. The EEP trajectories are initially built
Xuan Bien Duong
doaj   +1 more source

MIMO jerk derivative feedforward for motion systems [PDF]

open access: yes2006 American Control Conference, 2006
This paper shows that flexible modes in motion systems result in residual dynamics that can not be reduced using conventional acceleration feedforward and static decoupling. When reference trajectories with low frequency excitation are applied, low frequency tracking errors and cross-talk errors occur as peaks during jerk phases of a motion.
openaire   +2 more sources

Bifurcations and chaos of coupled Jerk systems

open access: yesActa Physica Sinica, 2010
Upon the analysis of the equilibrium points as well as the stabilities in coupled Jerk systems, bifurcation sets in parameter space are derived, which divide the parameter space into several regions associated with different forms of dynamics. The dynamical evolution of the coupled system is investigated with the variation of different parameters and ...
null Chen Zhang-Yao, null Bi Qin-Sheng
openaire   +1 more source

Dynamical behavior of a new jerk system inspired from chaotic memory oscillators [PDF]

open access: yesArchives of Control Sciences
This paper constructs a six-term new simple 3D jerk system modeled by chaotic model memory oscillators with four parameters that control the behavior. The suitable choice of one of these parameters helps the system describe behavior and attractors.
Saad Fawzi Al-Azzawi
doaj   +1 more source

Cosmic Jerk, Snap and Beyond [PDF]

open access: yes, 2008
We clarify the procedure for expressing the Friedmann equation in terms of directly measurable cosmological scalars constructed out of higher derivatives of the scale factor.
Dunajski, Maciej, Gibbons, Gary
core   +1 more source

Simple Chaotic Jerk Flows With Families of Self-Excited and Hidden Attractors: Free Control of Amplitude, Frequency, and Polarity

open access: yesIEEE Access, 2020
Although chaotic systems with self-excited and hidden attractors have been discovered recently, there are few investigations about relationships among them. In this paper, using a systematic exhaustive computer search, three elementary three-dimensional (
Irfan Ahmad, Banlue Srisuchinwong
doaj   +1 more source

Dynamic Analysis and Robust Control of a Chaotic System with Hidden Attractor

open access: yesComplexity, 2021
In this paper, a 3D jerk chaotic system with hidden attractor was explored, and the dissipativity, equilibrium, and stability of this system were investigated.
Huaigu Tian   +4 more
doaj   +1 more source

Accurate Tracking of Aggressive Quadrotor Trajectories using Incremental Nonlinear Dynamic Inversion and Differential Flatness

open access: yes, 2020
Autonomous unmanned aerial vehicles (UAVs) that can execute aggressive (i.e., high-speed and high-acceleration) maneuvers have attracted significant attention in the past few years.
Karaman, Sertac, Tal, Ezra
core   +1 more source

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