Question #327237
The turning moment diagram for a four stroke gas engine may be assumed for simplicity to be repre-
sented by four triangles, the areas of which from the line of zero pressure are as follows:
Expansion stroke = 3550 mm2; exhaust stroke = 500 mm2; suction stroke = 350 mm2; and compres- sion stroke = 1400 mm2. Each mm2 represents 3 N-m.
Assuming the resisting moment to be uniform, find the mass of the rim of a flywheel required to keep the mean speed 200 r.p.m. within ± 2%. The mean radius of the rim may be taken as 0.75 m. Also determine the crank positions for the maximum and minimum speeds
Expert's answer
The answer to your question is provided in the image:
Learn more about our help with Assignments: Mechanical Engineering
