A 120-kg machine is placed at the midspan of a 85-cm aluminum (E = 100 x 10°) N/m² simply. supported beam (I=4.56 x 10 m). When the machine, which has a rotating unbalance of 0.68 kg-m, operates at 458 rad/s, its steady-state amplitude is measured as 13.2 mm. If the damping is assumed to be hysteretic, determine the beam's hysteretic damping coefficient.
A 120-kg machine is placed at the midspan of a 85-cm aluminum (E = 100 x 10°) N/m² simply. supported beam (I=4.56 x 10 m). When the machine, which has a rotating unbalance of 0.68 kg-m, operates at 458 rad/s, its steady-state amplitude is measured as 13.2 mm. If the damping is assumed to be hysteretic, determine the beam's hysteretic damping coefficient.
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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![A 120-kg machine is placed at the midspan of a 85-cm aluminum (E = 100 x 10°) N/m² simply
supported beam (I=4.56 x 10 m). When the machine, which has a rotating unbalance of
0.68 kg-m, operates at 458 rad/s, its steady-state amplitude is measured as 13.2 mm. If the damping
is assumed to be hysteretic, determine the beam's hysteretic damping coefficient.
Ans. 0.060](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9fb4a97c-a050-4dba-a11b-b106ad7df959%2F1f84eb34-3e74-45a0-a2f2-3c55848ae246%2Foko3hko_processed.png&w=3840&q=75)
Transcribed Image Text:A 120-kg machine is placed at the midspan of a 85-cm aluminum (E = 100 x 10°) N/m² simply
supported beam (I=4.56 x 10 m). When the machine, which has a rotating unbalance of
0.68 kg-m, operates at 458 rad/s, its steady-state amplitude is measured as 13.2 mm. If the damping
is assumed to be hysteretic, determine the beam's hysteretic damping coefficient.
Ans. 0.060
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