Design a flat rubber belt that needs to transmit 100kW for a system consists of two pulleys of diameter 1.0 m and 1.5 m. The two shafts of the two pulleys must rotate in opposite direction. Center distance between the two shafts must be 3.6 m and must have a belt speed of 20 m/s. Cast iron is used as flat belt pulley material. A consideration of slippage of 2% at each pulley and 5% friction loss at each shaft, and 20% overload. Belt thickness is must be 15 mm and the safe stress of the belt is 2.5MPa.

Design a flat rubber belt that needs to transmit 100kW for a system consists of two pulleys of diameter 1.0 m and 1.5 m. The two shafts of the two pulleys must rotate in opposite direction. Center distance between the two shafts must be 3.6 m and must have a belt speed of 20 m/s. Cast iron is used as flat belt pulley material. A consideration of slippage of 2% at each pulley and 5% friction loss at each shaft, and 20% overload. Belt thickness is must be 15 mm and the safe stress of the belt is 2.5MPa.

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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Concept explainers

Power Transmission Elements

It is defined as the energy transfer from one location to another location. The energy will start moving from the energy generation source to the energy applied position to obtain the work output. From this method, a large amount of electric energy moves from the power station to various electrical substations.

Question

Design a flat rubber belt that needs to transmit 100kW for a system
consists of two pulleys of diameter 1.0 m and 1.5 m. The two shafts of the
two pulleys must rotate in opposite direction. Center distance between
the two shafts must be 3.6 m and must have a belt speed of 20 m/s. Cast
iron is used as flat belt pulley material. A consideration of slippage of 2%
at each pulley and 5% friction loss at each shaft, and 20% overload. Belt
thickness is must be 15 mm and the safe stress of the belt is 2.5MPa.
Also, design the cast iron pulleys for both driver and driven presented
above given that the distance from the centerlines of the driver and the
driven pulleys to their nearest bearings are 300 mm and 350 mm
respectively. The following stresses for other components must be
considered:
Shaft
Key
Belt:
Pulley rim:
Pulley arms:
:}
Tension and compression - 80 MPa
Shear
- 50 MPa
Tension
-2.5 MPa
Tension
- 4.5 MPa
Tension
- 15 MPa

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