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 rp.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.
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 rp.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.
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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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.
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Step 1: introduction
VIEWStep 2: determine the piston gas load
VIEWStep 3: determine the horizontal and vertical reactions at the bearings
VIEWStep 4: design of the crank pin
VIEWStep 5: design of shaft under the flywheel
VIEWStep 6: detremine the components of force on the crank pin
VIEWStep 7: determine the equivalent twisting moment of the crank pin
VIEWStep 8: design the right hand crank web
VIEWStep 9: determine the twisting moment on the arm of the crankshaft
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