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A 110kg machine is mounted on a foundation having a stiffness of 2x106 N/m and known to have damping. When operating at 150rad/sec the
A 110kg machine is mounted on a foundation having a stiffness of 2x106 N/m and known to have damping. When operating at 150rad/sec the machine is subject to a harmonic force of magnitude 1500N. The steady state amplitude of oscillation of the machine is measured as 1.9mm. i) What is the damping ratio ? (0.144) ii) What is the damping coefficient B ? (4273 N/m s-1)
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Vector Mechanics for Engineers Statics and Dynamics
Authors: Ferdinand Beer, E. Russell Johnston, Jr., Elliot Eisenberg, William Clausen, David Mazurek, Phillip Cornwell
8th Edition
73212229, 978-0073212227
