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1.4 mm 1.3mm 1.5 0.5 -0.5 -1 -1.5 6. 8 10 12 14 16 18 Displacement, x (mm) 2.

1.4 mm 1.3mm 1.5 0.5 -0.5 -1 -1.5 6. 8 10 12 14 16 18 Displacement, x (mm) 2.

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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For the free vibration of a SDOF system, the two amplitudes are measured at the instants 1.8 s and 12.8 s as shown in the Fig. (c). The said amplitudes (in mm) and the number of cycles of oscillation can be noted from the Fig (c). Find the un-damped natural frequency and the damping ratio ξ for this system.

1.4 mm 1.3mm 1.5 0.5 -0.5 -1.5 2 8 10 12 14 16 18 Time, t (s) Fig. (c) Measured free vibration of a damped spring-mass system. 2. 1. Displacement, x (mm)
Transcribed Image Text:1.4 mm 1.3mm 1.5 0.5 -0.5 -1.5 2 8 10 12 14 16 18 Time, t (s) Fig. (c) Measured free vibration of a damped spring-mass system. 2. 1. Displacement, x (mm)
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