determine magnification factor of forced vibration produced by oscillator fixed at middle of the beam at a speed of 600 rpm. The weight concentrated at the middle of the beam is 5000 N and produces statically deflection of the beam equal to 0.025 cm. Neglect the weight of the beam and damping is proportional to velocity of 2.5 cm/sec and force = 500 N
sum - 1 : determine magnification factor of forced vibration produced by oscillator fixed at middle of the beam at a speed of 600 rpm. The weight concentrated at the middle of the beam is 5000 N and produces statically deflection of the beam equal to 0.025 cm. Neglect the weight of the beam and damping is proportional to velocity of 2.5 cm/sec and force = 500 N
sum - 2 : An automobile whose weight is 150 N and it is mounted on 4 identical springs due to its weight it sags by 250 mm . each shock absorber has damping coefficient of 0.4 N for a velocity oof 30 mm/sec. The car is placed on a platform which moves vertically at resonance speed having an amplitude of 10mm. Find the amplitude of the car
Sum - 3: A SDOF has undamped natural frequency of 7 rad/sec. and a damping factor of 10%. The initial conditions are x0 = 0 and V0 = 0.5 m/sec. Find damped frequency and equation of motion of the system
Sum- 4; A SDOF system with a mass 25 kg and stiffness 10 N/mm with damping 0.15 Ns/m is initially at rest. IF the inital velocity is 100 mm/sec. find the expression for subsequemt displacement .Hence find displacement and velocity at t=2 secs
Sum- 5: The instrument of mass 50 kg is meant for impact on a surface. The impact velocity 10m/sec. Inside the mounting the system has a stiffness of 5 N/m and C=1 Ns/m . find maximum displacement of the instrument afterr engaging the spring and damper
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