If a damped oscillator has the following characteristics: m = 2 kg; xo = 90 cm; k = 17 Nm"1; da = 11 kgs1, then it will be: O a. Underdamped O b. Moving with a velocity of 4 ms1 at time t = 20 s. O c. Undamped. O d. At rest at the equilibrium position at timet = 0.1 s. O e. Overdamped. O f. Moving with a velocity of 20 ms1 at time t = 4 s. O g. Critically damped.

If a damped oscillator has the following characteristics: m = 2 kg; xo = 90 cm; k = 17 Nm"1; da = 11 kgs1, then it will be: O a. Underdamped O b. Moving with a velocity of 4 ms1 at time t = 20 s. O c. Undamped. O d. At rest at the equilibrium position at timet = 0.1 s. O e. Overdamped. O f. Moving with a velocity of 20 ms1 at time t = 4 s. O g. Critically damped.

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

(machine dynamıc) In a damped free-vibrating mass spring damper system, the mass is 1.9kg, the spring constant is 7550N/m, the amplitude of the 1st cycle is 0.35 cm, and the amplitude after 5 cycles is 0.07 cm.a) The natural frequency of the systemb) The damping degree of the systemc) Find the freely damped vibration frequency of the system.
A vibration system with a single degree of freedom has a spring stiffness of 7613.3 N/m, a mass of 55 kg, and a critical damping of 1.26x103 N.s/m. If the system's starting velocity is 2 m/s. Determine the system's displacement and velocity after two seconds.
A radio set of 20 kg mass must be isolated from a machine vibrating with an amplitude of 0.05 mm at 500 cpm. The set is mounted on four isolators, each having a spring scale of 31400 N/m and damping factor of 392 N-sec/m. What is the amplitude of vibration of the radio & dynamic load on each isolator due to vibration?
Question 1 Define how resonance occurs in a dynamic system? What must you take into account from preventing this from occurring? Finally, design a simple mass-spring-damper, indicate the values of the system, and provide an equation where the system is in a resonant state.
A spring mass system with a natural frequency fn = 20 Hz is attached to a vibration table. The table is set to vibrate at 16 Hz, with a maximum acceleration 0.25 g. Answer the following questions. Justify your answers for full credit. a. What is the magnification factor of the undamped system? b. What is the amplitude of the table's motion in inches? c. What is the maximum displacement of the mass assuming no dampening?
A centrifugal fan with a rotational speed of 1500 rpm has a weight of 1200 N and an imbalance of 30 kg-cm.The fan is found to emit a high level of noise while operating, vibrating the floor on which it is placed. To provide 90% insulation using rubber wedges with a dimensionless damping coefficient of 0.15 What should the resistance of the rubber wedges be? What will be the maximum value of the force transmitted to the ground in this case?
A rope-brake dynamometer attached to the crank shaft of an IC engine measures a brake power of 10 kW when the speed of rotation of the shaft is 400 rad/s The shaft torque (in Nm) sensed by the dynamometer is....
A radio set of 20 kg mass must be isolated from a machine vibrating with an amplitude of 0.05 mm at 500 cpm. The set is mounted on four isolators, each having a spring scale of 31400 N/m and damping factor of 392 N-sec/m. What is the amplitude of vibration of the radio?
In Problems 45–50, the distance d (in meters) of the bob of a pendulum of mass m (in kilograms) from its rest position at time t (in seconds)is given. The bob is released from the left of its rest position and represents a negative direction.(a) Describe the motion of the object. Be sure to give the mass and damping factor.(b) What is the initial displacement of the bob? That is, what is the displacement at t = 0?(c) Graph the motion using a graphing utility.(d) What is the displacement of the bob at the start of the second oscillation?(e) What happens to the displacement of the bob as time increases without bound?
Vibrations Question The governing equation of motion for a base motion system is given by (assume the units are Newton) mx''(t)+ cx'(t)+kx(t)=cYwbCos(wb*t)+kYSin(wb*t)Given that m = 180 kg, c = 30 kg/s, Y = 0.02 m, and wb= 3.5 rad/s Find the largest value of the stiffness, k that makes the transmissibility ratio less than 0.85