3.1 Derive the mathematical model of the clectrical system shown in Fig. P3.1. The model should be in terms of the appropriate dynamic variables. R Figure P3.1
3.1 Derive the mathematical model of the clectrical system shown in Fig. P3.1. The model should be in terms of the appropriate dynamic variables. R Figure P3.1
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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Transcribed Image Text:Problems 37
where F, is the total friction force, F, is the static friction (or "Stiction") force near zero velocity, Fe is
the Coulomb ("dry") friction force, e is a velocity cocfticient, b is the viscous friction coetficient, and
k is the relative velocity between the stiding mass and the surface, Let the friction model parameters be
F.- 10 N. Fe7 N, b 70N-sm. Use MATLAB to plot the total friction force vs. relative velocity for
-0.05 sis 0.05 m/s for three values of velocity coefficient: e0.001,0.002, and 0.005 m/s. Describe the
friction force at very small relative velocities und at the (relatively) high velocity of 20.05 m/s. In addition,
explain how varying the velocity coefficient e alters the so-called "Stribeck friction effect" when relative
velocity is very small.
3.1 Derive the mathematical model of the clectrical system shown in Fig. P3.1. The model should be in terms
of the appropriate dynamic variables.
R
Figure P3.1
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