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Page: A vehicle has mass of 1200 kg. the suspension system has a spring const. of 400 KN N/m and damping ratio of 0.5. If the vehicle speed is 20 km/hr. determine (x) the disp amplitude of the vehicle.
page dombook updated 3 months ago by RB ♦♦ 110
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Page: A huge machinery is mounted on a bed plate which is supported on four elastic members, each having stiffness $3.92 \times 10^6 N/m$ the total mass to be supported is 1 to n.
page dombook updated 3 months ago by RB ♦♦ 110
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Page: An accelerometer has a suspended mass of 0.01 kg with a damped natural frequency of vibration 150 Hz
page dombook updated 3 months ago by Abhishek Tiwari ♦♦ 50
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Page: Determine the necessary stiffness and the damping constant of a accelerator.
page dombook updated 3 months ago by Abhishek Tiwari ♦♦ 50
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Page: An accelerometer of natural frequency 200 Hz and damping ratio 0.7 is used to measure the vibration of a system
page dombook updated 3 months ago by Abhishek Tiwari ♦♦ 50
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Page: Problems on accelerometer. An accelerometer has natural frequency of 80 Hz and a damping co efficient of 8 Ns/m, When attached to vibrating structure,
page dombook updated 3 months ago by Abhishek Tiwari ♦♦ 50
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Page: A seismic instrument with natural frequency of 6Hz is used to measure the vibration of machine running at 120 rpm.
page dombook updated 3 months ago by Abhishek Tiwari ♦♦ 50
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Page: A vibrometer is used to measure the vibration at the base of a variable speed machine. The operation speed of machine ranges between, 500 to 1500 rpm,
page dombook updated 3 months ago by Abhishek Tiwari ♦♦ 50
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Page: Show that an undamped measuring instrument will show true response for frequency ratio.
page dombook updated 3 months ago by Abhishek Tiwari ♦♦ 50
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Page: A vibrometer having a natural frequency of 4 rad/s and damping ratio of 0.2 is attached to a structure that performs a harmonic motion
page dombook updated 3 months ago by Abhishek Tiwari ♦♦ 50
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Page: Case 5: vibration measuring instrument.
page dombook updated 3 months ago by Abhishek Tiwari ♦♦ 50
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Page: A refrigerator weighing 30 kg is to be supported by three springs each having stiffness of K (N/m) if the unit operates at 580 rpm,
page dombook updated 3 months ago by Abhishek Tiwari ♦♦ 50
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Page: A 100 kg turbine operates at 2000 rpm, What percent isolation is achieved if the turbine is mounted on four identical springs in parallel each of stiffness $3 \times 10^5 N/m$
page dombook updated 3 months ago by Abhishek Tiwari ♦♦ 50
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Page: An air conditioner weighs 1115N and is driven by a motor at 500 rpm. What is the required static deflection of an undamped isolator to achieve 80% isolation?
page dombook updated 3 months ago by Abhishek Tiwari ♦♦ 50
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Page: A machine 100kg mass has a 20kg rotor with 0.5mm eccentricity.
page dombook updated 3 months ago by Abhishek Tiwari ♦♦ 50
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Page: An engine is mounted on four rubber pads such that the static deflection is 5mm. if the mass of the engine and coupling is 300kg at what speed motor run for 95% isolation?
page dombook updated 3 months ago by Abhishek Tiwari ♦♦ 50
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Page: A 35 kg flow monitoring device is placed on a table in a laboratory. A pad of stiffness $2 \times 10^5$ N/m and damping ratio 0.08 is placed between the apparatus and the table.
page dombook updated 3 months ago by Abhishek Tiwari ♦♦ 50
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Page: The spring of an automobile trailer is compressed by 0.1m under its own weight of 500 kg. find the critical speed, When the trailer is travelling over a road with a profile approx.
page dombook updated 3 months ago by Abhishek Tiwari ♦♦ 50
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Page: A vehicle of mass 1200 kg is travelling on a road the surface of which varies sinusoidally with an amplitude of 0.05m and wave length of 6m.
page dombook updated 3 months ago by Abhishek Tiwari ♦♦ 50
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Page: Determine the steady state amplitude of the system shown.
page dombook updated 3 months ago by Abhishek Tiwari ♦♦ 50
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Page: Derive equation of motion and steady state amplitude of mass.
page dombook updated 3 months ago by Abhishek Tiwari ♦♦ 50
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Page: Derive the equation of motion and find the steady state displacement of mass m.
page dombook updated 3 months ago by Abhishek Tiwari ♦♦ 50
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Page: A tail rotor section of the helicopter consistent of four blades, each of mass 2.3 kg and an engine box of mass 28.5 kg. The centre of gravity of each blade is 170 mm from the rotational axis.
page dombook updated 3 months ago by Abhishek Tiwari ♦♦ 50
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Page: Find the maximum permissible unbalanced in order to limit the steady state deflection to 5mm peak to peak.
page dombook updated 3 months ago by Abhishek Tiwari ♦♦ 50
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Page: A machine weighing 1100 N has a rotor 220N with 5mm eccentricity. The operating speed is 600 rpm, the machine is mounted on springs with stiffness 88 KN/m.
page dombook updated 3 months ago by Abhishek Tiwari ♦♦ 50
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