Q2/ Two pulleys on parallel shaft are connected by a crossed belt. The diameter of the pulleys is450 mm and 200 mm. The shafts are 1.95 m apart. Find (a) the length of the belt required,(b) the angle of contact between the belt and each pulley, and (c) the power transmitted by thebelt when the larger pulley rotates at 100 rpm, if the maximum permissible tension in the belt is1000 N and u = 0.25.Q3/ An open belt drive connected two parallel shafts 1.2 m apart. The driving and driven shaftsrotate at 350 rpm and 140 rpm respectively and the driven pulley is 40 cm diameter. The belt is5 mm thick and 8 cm wide. u = 0.3 and maximum permissible stress in the belting is 140 N/cm2.Determine (a) diameter of the driving pulley, (b) maximum power that may be transmitted bythe belting, and (c) required initial tension in the belt.

μ=0.25Torque T1=1 kN=1000NN1=100 rpmω1=2πN60=2*π*10060=10.47…

Two pulleys on parallel shaft are connected by a crossed belt. The diameter of the pulleys is 450 mm and 200 mm. The shafts are 1.95 m apart. Find (a) the length of the belt required, (b) the angle of contact between the belt and each pulley, and (c) the power transmitted by the belt when the larger pulley rotates at 100 rpm, if the maximum permissible tension in the belt is 1000 N and u = 0.25. %3D

Two pulleys on parallel shaft are connected by a crossed belt. The diameter of the pulleys is 450 mm and 200 mm. The shafts are 1.95 m apart. Find (a) the length of the belt required, (b) the angle of contact between the belt and each pulley, and (c) the power transmitted by the belt when the larger pulley rotates at 100 rpm, if the maximum permissible tension in the belt is 1000 N and u = 0.25. %3D

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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Forms of Energy

Energy is described as the capability to accomplish a task, like the ability to push a block by applying force on it. It is a quantitative property that is used to accomplish work on an object.

Question

Q2/ Two pulleys on parallel shaft are connected by a crossed belt. The diameter of the pulleys is
450 mm and 200 mm. The shafts are 1.95 m apart. Find (a) the length of the belt required,
(b) the angle of contact between the belt and each pulley, and (c) the power transmitted by the
belt when the larger pulley rotates at 100 rpm, if the maximum permissible tension in the belt is
1000 N and u = 0.25.
Q3/ An open belt drive connected two parallel shafts 1.2 m apart. The driving and driven shafts
rotate at 350 rpm and 140 rpm respectively and the driven pulley is 40 cm diameter. The belt is
5 mm thick and 8 cm wide. u = 0.3 and maximum permissible stress in the belting is 140 N/cm2.
Determine (a) diameter of the driving pulley, (b) maximum power that may be transmitted by
the belting, and (c) required initial tension in the belt.

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