The equation of motion of a discrete linear system has the form of a second-order ordinary differential equation with three real and square coefficient matrices. It is shown that, for almost all ...

The Equations of Motion project provides an application with astrodynamics related functionality along with a library to aid in the creation of custom tools. User ...

Abstract: The triaxial attitude control testbed has been developed as part of a research program on spacecraft multibody rotational dynamics and control. In this paper, equations of motion are derived ...

Of the above u, v, a and s are vector quantities. As such, remember to make vectors going in one direction positive and vectors in the opposite direction negative. Time (t) is a scalar quantity. If ...

Rolling-ring mechanical drives are simple, efficient, robust, and can eliminate the need for electronic controls. Bob Eisele, Amacoil Inc., Aston, Pa. Rolling-ring drives are friction drives that ...