Sol Q2(10 Marks): An air compressor of weight 981 N is mounted on an elastic foundation. It hasbeen observed that when a harmonic force of amplitude 100 N is applied to the compressor,the steady-state displacement of 5 mm occurs at a frequency of 300 rpm. The compressor isthen modified to include a damping element in the foundation with a damping coefficient of905 N.s/m. Determine (a) the equivalent stiffness (b) the steady state displacement of thefoundation that would limit the 400 rpm, (c) the force transmitted to the foundation.

Answered: Image /qna-images/answer/7a22e0b0-b9b3-4cd0-b51d-e7af98e223b9.jpg

Answered: Q2(10 Marks): An air compressor of…

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

Fig. (2) Q3-A (8 Marks): An automobile is modeled as a single-degree-of-freedom system vibrating in the vertical direction. It is driven along a road whose elevation varies sinusoidally. The distance from peak to trough is 0.2 m and the distance along the road between the peaks is 35 m. If the natural frequency of the automobile is 2 Hz and the damping ratio of the shock absorbers is 0.15, determine the amplitude of vibration of the automobile at a speed of 60 km/hour 6.18
Vipretion
A vehicle weighing 5,000 lb is supported on four identical springs and four identical viscous dampers. The static deflection of the vehicle under its own weight is 10 in. Determine the damping required for each of the dampers so that the critical damping is achieved.
(a) Determine the damping ratio; (b) State whether the system is underdamped, critically damped, or overdamped; (c) Determine x(t) or θ(t) for the given initial conditions
1) A 45 kg machine is mounted on four parallel springs each of stiffness 2x10^5 N/m and a damping ratio of 0.1. When the machine operates at 32 Hz the machine's steady-state amplitude is measured as 1.5 mm. What is the magnitude of the excitation provided to the machine at this speed?
An oscillator system without damping has a natural frequency of omega 0 = pi rad/s. Several types of attenuation are given to the system to provide a damping factor (y) of 0.1, 0.5 and 1 s^-1. (a) For each damping factor value, determine the omega value of the oscillator!. (b) determine the displacement at time t = 2 seconds for the damping factor y = 0.5 , if the displacement at t = O is 30 mm and v = 1.5 m/s
Q1. A single Degree of freedom vibration system has spring stiffness of 7613.3 N/m, mass of 52 kg and critical damping of 1.26x10^3 N.s/m. If the initial velocity for the system is 2 m/s. Determine the displacement and velocity for the system after 2 second.
Q1. The natural frequency of vibration of a person is found to be 5.2 Hz while standing on a horizontal floor. Assuming damping to be negligible, determine the following: a. If the weight of the person is 70 kgf, determine the equivalent stiffness of his body in the vertical direction. b. If the floor is subjected to a vertical harmonic vibration of frequency of 5.3 Hz and amplitude of 0.1 m due to an unbalanced rotating machine operating on the floor, determine the vertical displacement of the person.
The amplitude of vibration of a single degree of freedom spring-mass-damper system is observed to reduce to 15 % of its initial value after 5 cycles. Spring stiffness equals (1500 + 007) N/m and mass equals (7.5 + 007) kg. Determine: The undamped natural frequency; The damped natural frequency; The logarithmic decrement; The damping ratio; and The coefficient of damping.
The natural frequency of an undamped vibrating system is 100 rad/s. A damper with a damping factor of 0.8 is introduced into the system. What is the frequency of vibration of the damped system in rad/s?
Q2: A machine of mass (m) 25.0 kg is placed on an elastic foundation as shown in Figure below. A sinusoidal force of magnitude (F. 25 N) is applied to the machine. A frequency sweep reveals that the maximum steady-state amplitude of 1.3 mm occurs when the period of response is 0.22 s. Determine the equivalent stiffness (K) and damping ratio (E) of the foundation. F sin wt x(t)
A mass of 5 kg is suspended on a spring and set on oscillations. It is observed that theamplitude reduces to 5% of its initial value after 2 oscillations. It takes 0.5 seconds to do thetwo oscillations. Calculate the following.(i) The damping ratio(ii) The natural frequency(iii) The actual frequency(iv) The spring stiffness(v) The critical damping coefficient(vi) The actual damping coefficient

SEE MORE QUESTIONS

Recommended textbooks for you

Elements Of Electromagnetics

Mechanical Engineering

ISBN:

9780190698614

Author:

Sadiku, Matthew N. O.

Publisher:

Oxford University Press

Mechanics of Materials (10th Edition)

Mechanical Engineering

ISBN:

9780134319650

Author:

Russell C. Hibbeler

Publisher:

PEARSON

Thermodynamics: An Engineering Approach

Mechanical Engineering

ISBN:

9781259822674

Author:

Yunus A. Cengel Dr., Michael A. Boles

Publisher:

McGraw-Hill Education

Elements Of Electromagnetics

Mechanical Engineering

ISBN:

9780190698614

Author:

Sadiku, Matthew N. O.

Publisher:

Oxford University Press

Mechanics of Materials (10th Edition)

Mechanical Engineering

ISBN:

9780134319650

Author:

Russell C. Hibbeler

Publisher:

PEARSON

Thermodynamics: An Engineering Approach

Mechanical Engineering

ISBN:

9781259822674

Author:

Yunus A. Cengel Dr., Michael A. Boles

Publisher:

McGraw-Hill Education

Control Systems Engineering

Mechanical Engineering

ISBN:

9781118170519

Author:

Norman S. Nise

Publisher:

WILEY

Mechanics of Materials (MindTap Course List)

Mechanical Engineering

ISBN:

9781337093347

Author:

Barry J. Goodno, James M. Gere

Publisher:

Cengage Learning

Engineering Mechanics: Statics

Mechanical Engineering

ISBN:

9781118807330

Author:

James L. Meriam, L. G. Kraige, J. N. Bolton

Publisher:

WILEY

SEE MORE TEXTBOOKS