Electromechanical Dynamics (Part 1).0057

Electromechanical Dynamics (Part 1).0057 - A-PDF Split DEMO...

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Lumped Electromechanical Elements In the two sections to follow we first define mechanical elements and then specify the laws and illustrate the formulation of equations of motion. 2.2.1 Mechanical Elements In general, a mechanical system, which, for the moment, we define as an interconnected system of ponderable bodies in relative motion, will exhibit kinetic energy storage in moving masses, potential energy storage due to gravitational fields or elastic deformations, and mechanical losses due to friction of various types. Any component of a system will exhibit all three effects to varying degrees; as a practical matter of analysis and design, however, we can often represent mechanical systems as interconnections of ideal elements, each of which exhibits only one of these effects. This process is analogous to that of defining ideal circuit elements in circuit theory and has its justification in derivations from continuum mechanics. These deriva- tions are not made in a formal way; however, in our treatment of continuum
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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.

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