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Elements Of Electromagnetics
7th Edition
ISBN: 9780190698614
Author: Sadiku, Matthew N. O.
Publisher: Oxford University Press
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
Transcribed Image Text:Example.
Design a plain carbon steel Centre crankshaft for a single acting
four stroke single cylinder engine for the following data:
Bore=400 mm; Stroke = 600 mm; Engine speed = 200 r.p.m.; Mean effective pressure = 0.5
N/mm²; Maximum combustion pressure = 2.5 N/mm²; Weight of flywheel used as a pulley = 50 kN;
Total belt pull = 6.5 kN.
When the crank has turned through 35° from the top dead centre, the pressure on the piston is
IN/mm² and the torque on the crank is maximum. The ratio of the connecting rod length to the crank
radius is 5. Assume any other data required for the design.
Expert Solution
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Step 1: introduction
VIEW Step 2: determine the piston gas load
VIEW Step 3: determine the horizontal and vertical reactions at the bearings
VIEW Step 4: design of the crank pin
VIEW Step 5: design of shaft under the flywheel
VIEW Step 6: detremine the components of force on the crank pin
VIEW Step 7: determine the equivalent twisting moment of the crank pin
VIEW Step 8: design the right hand crank web
VIEW Step 9: determine the twisting moment on the arm of the crankshaft
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