Topic: Mechanics of Machines & Vibrations \ Damped System under Sinusoidal ExcitationSolve this problem through a step-by-step working without taking any shortcuts. Draw any relevant diagrams if necessary. m=2 kg ; eccentricity, e14.2) A perfectly balanced motor with its shaft has amass of 18 kg , and a 2 kg disc is fixed onto18 kgthe shaft, with eccentricity, e. The motor ismounted on an 180 kg platform supported by180 kgrubber mountings. The equivalent stiffness ofthe mountings is 1.5 x 10' N/m , and the equivalentdamping is 3 x10*Ns/m. When the motor is runningKeg= 1.5 x10' N/mCe-3 x104Ns/mat a rotational speed of 3000 rpm, it was found thatthe steady state amplitude of vibration is 0.2 mm.FIG. Q14. 2Find:a) The eccentricity, e , of the disc.b) The magnitude of the force that is transmitted to the floorAns : e =F:=

Given data as per the question Mass of motor=18 kgMass of disc=2 kgMass of platform=180 kgk=1.5×107…

A perfectly balanced motor with its shaft has a mass of 18 kg , and a 2 kg disc is fixed onto the shaft, with eccentricity, e. The motor is mounted on an 180 kg platform supported by rubber mountings. The equivalent stiffness of the mountings is 1.5 x 10' N/m , and the equivalent damping is 3 x10* Ns/m. When the motor is running at a rotational speed of 3000 rpm, it was found that the steady state amplitude of vibration is 0.2 mm.

A perfectly balanced motor with its shaft has a mass of 18 kg , and a 2 kg disc is fixed onto the shaft, with eccentricity, e. The motor is mounted on an 180 kg platform supported by rubber mountings. The equivalent stiffness of the mountings is 1.5 x 10' N/m , and the equivalent damping is 3 x10* Ns/m. When the motor is running at a rotational speed of 3000 rpm, it was found that the steady state amplitude of vibration is 0.2 mm.

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter1: Tension, Compression, And Shear

Section: Chapter Questions

Problem 1.8.4P: The inclined ladder AB supports a house painter (85 kg) at C and the weight iq = 40 K/m} of the...

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