Active motion assisted by correlated stochastic torques.

Thermally assisted current-driven skyrmion motion

We study the behavior of skyrmions in thin films under the action of stochastic torques arising from thermal fluctuations. We find that the Brownian motion of skyrmions is described by a stochastic Thiele’s equation and its corresponding Fokker-Planck equation. The resulting Fokker-Planck equation is recognized as the one for a high-friction Brownian particle which has been studied extensively ...

Descending corticospinal control of intersegmental dynamics.

To make an accurate movement, the CNS has to overcome the inherent complexities of the multijoint limb. For example, interaction torques arise when motion of individual arm segments propagates to adjacent segments causing their movement without any muscle contractions. Since these passive joint torques significantly add to the overall torques generated by active muscular contractions, they must...

Existence and Measurability of the Solution of the Stochastic Differential Equations Driven by Fractional Brownian Motion

Joint-Torque Control of Character Motions: Active Animations

We want to go beyond “passive rag-doll like” simulated characters towards more “active” intelligent self-driven solutions. The “puppet on strings” approach lacks dynamic interactive properties for engaging realistic and immersive virtual environments. This paper focuses on physics-based “self-driven characters” (e.g., character’s own joint-torques to control and move the limbs to accomplish spe...

Effects of Flight Dynamics on Performance of One Axis Gimbal System, Considering Disturbance Torques

The gimbal stabilization mechanism system is used to provide the stability to an object mounted on the gimbal by isolating it from the base angular motion and vibration. In this paper the model of one axis gimbal system with dynamics flying object is introduced. The gimbal torque relationships are obtained using Newton’s second law equation on the assumption that gimbal is rigid body. The syste...