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Electromechanical Dynamics (Part 1).0062

Electromechanical Dynamics (Part 1).0062 - friction is...

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___ Mechanics and for the rotary-motion damper it is analogous (Fig. 2.2.7): d T = B - (02 - 00). (2.2.6) dt Note that the damping constant B has different dimensions for the two systems. In each case both displacements are measured with respect to references that are fixed. Mechanical friction occurs in a variety of situations under many different physical conditions. Sometimes friction is unwanted but must be tolerated and accounted for analytically, as, for example, in bearings, sliding electrical contacts, and the
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Unformatted text preview: friction is desired and is designed into equipment. Examples are vibration dampers and shock absorbers. Although in some cases a linear model is a useful approximation, in many others it is inadequate. The subject of friction VIscous-2-") Equivalent circuit (a) Fig. 2.2.7 Mechanical dampers: (a) translational system; (b) rotational system. A-PDF Split DEMO : Purchase from www.A-PDF.com to remove the watermark...
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