Oues 1 A machine of mass ? = 500 ?? is mounted on a simply supported steel beam of length ? = 2 ? having a rectangular cross section (height = 0.1 ? and breadth = 1.2 ?) and Young’s modulus ? = 2.06 × 1011 ?/?2 . To reduce the vertical deflection of the beam, a spring of stiffness ? is attached at mid-span, as shown in the figure Determine the value of ? needed to reduce the deflection of the beam by: 25 per cent of its original value. 50 per cent of its original value. 75 per cent of its original value. Assume that the mass of the beam is negligible. Given that the stiffness of the beam and the moment of inertia, respectively, can be calculated as ?beam = 48?? /?3 and ? =1 /12 ?ℎ3
Oues 1 A machine of mass ? = 500 ?? is mounted on a simply supported steel beam of length ? = 2 ? having a rectangular cross section (height = 0.1 ? and breadth = 1.2 ?) and Young’s modulus ? = 2.06 × 1011 ?/?2 . To reduce the vertical deflection of the beam, a spring of stiffness ? is attached at mid-span, as shown in the figure Determine the value of ? needed to reduce the deflection of the beam by: 25 per cent of its original value. 50 per cent of its original value. 75 per cent of its original value. Assume that the mass of the beam is negligible. Given that the stiffness of the beam and the moment of inertia, respectively, can be calculated as ?beam = 48?? /?3 and ? =1 /12 ?ℎ3
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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Oues 1 A machine of mass ? = 500 ?? is mounted on a simply supported steel beam of length ? = 2 ? having a rectangular cross section (height = 0.1 ? and breadth = 1.2 ?) and Young’s modulus ? = 2.06 × 1011 ?/?2 . To reduce the vertical deflection of the beam, a spring of stiffness ? is attached at mid-span, as shown in the figure Determine the value of ? needed to reduce the deflection of the beam by:
- 25 per cent of its original value.
- 50 per cent of its original value.
- 75 per cent of its original value.
Assume that the mass of the beam is negligible. Given that the stiffness of the beam and the moment of inertia, respectively, can be calculated as ?beam = 48?? /?3 and ? =1 /12 ?ℎ3
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