A spring-mass system with m-10 kg and k-5000 N/m is subjected to a harmonic force having...
A spring-mass system with m = 8 kg and k = 4000 N/m subjected to a harmonic force of amplitude 200 N and frequency (). When the mass of the system is increased by 20% from its original value, the amplitude of the forced motion of the new mass is observed to be 25% off the original one. Determine the frequency of the harmonic force and the amplitude of original system
A spring with k = 245 N/m has a mass of m = 4.35 kg attached to it. An external force F whose maximum value is 825 N drives the spring mass system so that it oscillates without any resistive forces. If the amplitude of the oscillatory motion of the spring-mass system is 3.65 cm, find the frequency of the external force that drives this motion. Hz
Problem # 4 15 points The base of a damped spring-mass system, with m 25 kg and k 2500 N/m, is subjected to a harmonic excitation y(t) Xo cos ω. The amplitude of the mass is found to be 0.05 m when the base is excited at the natural frequency of the system with Yo 0.0 m. Determine the damping constant of the system.
A 50 kg mass is subjected to the harmonic force F(t) 1000 cos 120t N. Design an undamped isolator so that the force transmitted to the base does not exceed 5% of the applied force. Also find the displacement amplitude of the mass of the system with isolation. (k- 34.2857 x 103 VX -1.4583 x 10-3m)
EXam 2 Name: 1. A n undamped vertical system consists of a mass weighing 100 N and a spring of stiffness 5000 N/m. It is acted on by a harmonic force of amplitude 80 N and frequency 5 Hz. Find i) The displacement of the spring due to the weight of the mass, The static displacement of the spring due to the maximum applied force, and The amplitude of forced motion of the mass for zero initial conditions iii)
A damped vibrating system consists of a spring of stiffness k = 3,600 N/m and a mass of 5 kg. It is damped so that each amplitude is 99% of the previous one (i.e. after a full cycle). (a) Find the frequency of oscillation. (b) Find the damping constant. (c) Find the amplitude of the force of resonant frequency necessary to to keep the system vibrating at 25mm amplitude. (d) What is the rate of increase in amplitude if, at...
A 0.40-kg mass is attached to a spring with a force constant of k = 207 N/m, and the mass–spring system is set into oscillation with an amplitude of A = 2.0 cm. Determine the following. (a) mechanical energy of the system _____ J (b) maximum speed of the oscillating mass _____ m/s (c) magnitude of the maximum acceleration of the oscillating mass _____ m/s2 A 0.40-kg mass is attached to a spring with a force constant of k =...
A car and its suspension system act as a block of mass m= on a vertical spring with k 1.2 x 10 N m, which is damped when moving in the vertical direction by a damping force Famp =-rý, where y is the 1200 kg sitting 4. (a) damping constant. If y is 90% of the critical value; what is the period of vertical oscillation of the car? () by what factor does the oscillation amplitude decrease within one period?...
question will save this response. Questo Question 10 10 points A mass mis suspended from a spring of stiffness 403 N/m, with natural frequency 30 rad/s. It is subjected to harmonic force of 1.73 N and having a forcing frequency of 7 rad's. Find the maximum amplitude of the forced motion of the mass in meters.
Problem 5: A block weighing 40.0 N is suspended from a spring that has a force constant of 200 N/m. The system is undamped (b 0) and is subjected to a harmonic driving force of frequency 10.0 Hz, resulting in a forced-motion amplitude of 2.00 cm. (a) Determine the maximum value of the driving force. The same system of block and spring are now moving in a fluid with damping coefficient b25 kg/s. The system is driven by an external...