Engineering, 24.05.2021 21:10 BradFarquharson472
A vibration system consists of a mass 50 kg, a spring of stiffness 30 kN/m and a damper. The
damping provided is only 20% of the critical value. Determine (a) the damping factor, (b) the
critical damping coefficient, (c) the natural frequency of the damped vibrations, (d) the
logarithmic decrement and (e) the ratio of two consecutive amplitudes.
Answers: 3
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Find the kinematic pressure of 160kpa. for air, r-287 j/ kg k. and hair al viscosity of air at a temperature of 50°c and an absolute (10 points) (b) find the dynamic viscosity of air at 110 °c. sutherland constant for air is 111k
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Find the minimum film thickness for a journal bearing with the data below. shaft diameter, d-50 mm, clearance ratio, cdratio? 0.001, shaft speed, n 2000 rpm; bearing length. i 200 mm; eccentricity ration, ? -0.55. ( note, cdratio-ca/d) the minimum film thickness is um
Answers: 2
A vibration system consists of a mass 50 kg, a spring of stiffness 30 kN/m and a damper. The
dampin...
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