Electromechanical Dynamics (Part 1).0070

Electromechanical Dynamics (Part 1).0070 - A-PDF Split DEMO...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Mechanics The last two terms on the right of (2.2.26) (the x- and y-components) represent a torque that must be applied by bearings and support structure to maintain the axis of rotation fixed. It should be clear from the definitions of the products of inertia in (2.2.24) and (2.2.25) that certain axes of symmetry make these products of inertia zero. Such axes are called principal axes.* When rotation occurs about a principal axis (the body is dynamically balanced), no bearing torque is necessary to maintain the axis of rotation fixed. Now that we have completed the definitions of the elements that will make up the mechanical parts of our electromechanical systems, we have only to describe how we combine elements to obtain complete equations of motion. 2.2.2 Mechanical Equations of Motion When electrical circuit elements are interconnected, Kirchhoff's loop and node relations must be satisfied. The sum of the voltage differences around any loop must be zero and the sum of all currents into any node must be zero. Similar relations must hold in networks composed of interconnected ideal
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 02/10/2012 for the course MECE 4371 taught by Professor Liu during the Fall '11 term at University of Houston.

Ask a homework question - tutors are online