The slender bar of Figure 3.9(a) has a mass of 31 kg and a length of 2.6 m. A 50 N force is statically applied to the bar at P then removed. The ensuing oscillations of Pare moni- tored, and the acceleration data is shown in Figure 3.9(b) where the time scale is calibrated but the acceleration scale is not. (a) Use the data to find the spring stiffness k and the damping cocfficient c.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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The slender bar of Figure 3.9(a) has a mass of 31 kg and a length of 2.6 m. A 50 N force is statically applied to the bar at P then removed. The ensuing oscillations of Pare moni- tored, and the acceleration data is shown in Figure 3.9(b) where the time scale is calibrated but the acceleration scale is not. (a) Use the data to find the spring stiffness k and the damping cocfficient c. (b) Calibrate the acceleration scale.
Assignment-2
The slender bar of Figure 3.9(a) has a mass of 31 kg and a length of 2.6 m. A 50 N force
is statically applicd to the bar at P then removed. The cnsuing oscillations of P are moni-
tored, and the acceleration data is shown in Figure 3.9(b) where the time scale is calibrated
but the acceleration scale is not.
(a) Use the data to find the spring stiffncss & and the damping cocfficient c.
(b) Calibrate the acceleration scale.
50 N
C=?
m = 31 kg
k= ?
0.05
0.1
0.15
0.2
0.25
0.65 m-
1.95 m
Time (s)
(a)
(b)
at) (scale not calibrated)
Transcribed Image Text:Assignment-2 The slender bar of Figure 3.9(a) has a mass of 31 kg and a length of 2.6 m. A 50 N force is statically applicd to the bar at P then removed. The cnsuing oscillations of P are moni- tored, and the acceleration data is shown in Figure 3.9(b) where the time scale is calibrated but the acceleration scale is not. (a) Use the data to find the spring stiffncss & and the damping cocfficient c. (b) Calibrate the acceleration scale. 50 N C=? m = 31 kg k= ? 0.05 0.1 0.15 0.2 0.25 0.65 m- 1.95 m Time (s) (a) (b) at) (scale not calibrated)
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