A machine with a mass of “M" is mounted on an elastic foundation, and is found to vibrate m with a deflection of 240 mm at resonance. The unbalanced mass “m" of the motor is % 16 of mass M. If the damping ratio of the foundation is 0.072. a) Determine the eccentricity “e" of the unbalanced mass. b) Assuming that the eccentric mass remains the same, determine the mass to be added to the machine if the deflection of the machine at resonance is M required to be 150 mm.

A machine with a mass of “M" is mounted on an elastic foundation, and is found to vibrate m with a deflection of 240 mm at resonance. The unbalanced mass “m" of the motor is % 16 of mass M. If the damping ratio of the foundation is 0.072. a) Determine the eccentricity “e" of the unbalanced mass. b) Assuming that the eccentric mass remains the same, determine the mass to be added to the machine if the deflection of the machine at resonance is M required to be 150 mm.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

Explain mechanical properties of advanced material.
At higher temperature, strength and strain hardening are increased, whereas, ductility is decreased which permits greater plastic .deformation True O False O .The strength constant (C) is increased with increasing of temperature True O False O The metal is becoming weaker as strain increases, this is because of .strain hardening (work hardening) property نقطة واحدة True O False O The engineering stress and strain are defined relative to the .instantaneous area and length of test specimen True O False aaly ihi In sheetmetal working processes, the surface area-to-volume ratio of .w.p. is low True O False ialy ihii Determine the value of the strain-hardening exponent for a metal that will cause the average flow stress to be 70% of the final flow stress after .deformation 0.444 0.421 0.422 0.428 aals i For pure copper (annealed), the strength coefficient = 330 MPa and strain-hardening exponent = 0.52 in the flow curve equation. Determine the average flow stress that the metal experiences…
3. Complete a table similar to that in Experiment No.3. Let weight of block equal to 5.60 N for the first trial; a mass of 200 g is added in the next trial. Consider the following results: Trial 1- applied force for constant velocity is 1.58 N, coefficient of static friction is 0.57; Trial 2- applied force to move object is 4.16 N and 1.97 N to move it at constant velocity. [Use two (2) decimal places].
In soil mechanical
Answer Part b
Explain why force vibrations considered to be destructive and causes damage.
The following are non-destructive tests which are considered useful for inspecting internal defects in materials or products(Choose all that apply) Sonic waves Transmission method (ultrasonic) Electrical method (Eddy current) Pulse reflection method (ultrasonic) Magnetic particle method X-ray examination
What are some of the important principles of statics and show how they are used to determine the internal resultant loadings in a body?
Why is it important to make standards for the different building/engineering materials? (Tensile strength, for example) elaborate
Q:03 Why we study the subject of industrial material in the field of mechanical Engineering?
Justify the selection of standard rolled steel sections in mechanical design
How does mechanical engineering contribute to the development of medical device