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1 ↓ 100 a 250 Τ I < Figure 2: Crank-connecting rod-piston mechanism (adapted from Hibbeler, 2002) In a multi-cylinder automobile internal combustion engine, crank AB is rotating with an angular velocity a (see Figure 2). The length of crank AB and connecting rod BC are 100 mm and 250 mm respectively. In internal combustion engines the motion between these two elements represents an important design parameter. c) Determine the angular velocity a of the crank AB for the crank-rod-piston mechanism if the system is released from rest with = 60° to = 20°. Also, determine the velocity of point C at the same instant. The masses of the connecting rod BC and the crank AB are 1.8 kg and 1.2 kg respectively. Both AB and BC can be considered as uniform slender rods. See Figure 2 for the length of crank and connecting rods. Use work and energy principle (conservation of energy principle). d) A 4 kg flywheel is attached with an automobile engine crankshaft. It has a radius of gyration about its shaft axis of = 0.2 m. If it is subjected to the torque M=10(1-e) Nm, where t is in seconds and the flywheel is at rest at time + = 0s, determine its angular velocity wat time=3s. Use impulse and momentum principle.

1 ↓ 100 a 250 Τ I < Figure 2: Crank-connecting rod-piston mechanism (adapted from Hibbeler, 2002) In a multi-cylinder automobile internal combustion engine, crank AB is rotating with an angular velocity a (see Figure 2). The length of crank AB and connecting rod BC are 100 mm and 250 mm respectively. In internal combustion engines the motion between these two elements represents an important design parameter. c) Determine the angular velocity a of the crank AB for the crank-rod-piston mechanism if the system is released from rest with = 60° to = 20°. Also, determine the velocity of point C at the same instant. The masses of the connecting rod BC and the crank AB are 1.8 kg and 1.2 kg respectively. Both AB and BC can be considered as uniform slender rods. See Figure 2 for the length of crank and connecting rods. Use work and energy principle (conservation of energy principle). d) A 4 kg flywheel is attached with an automobile engine crankshaft. It has a radius of gyration about its shaft axis of = 0.2 m. If it is subjected to the torque M=10(1-e) Nm, where t is in seconds and the flywheel is at rest at time + = 0s, determine its angular velocity wat time=3s. Use impulse and momentum principle.

Refrigeration and Air Conditioning Technology (MindTap Course List)
Refrigeration and Air Conditioning Technology (MindTap Course List)
8th Edition
ISBN:9781305578296
Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Chapter1: Heat, Temperature, And Pressure
Section: Chapter Questions
Problem 17RQ: Convert 22C to Fahrenheit.
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1 ↓ 100 a 250 Τ I < Figure 2: Crank-connecting rod-piston mechanism (adapted from Hibbeler, 2002) In a multi-cylinder automobile internal combustion engine, crank AB is rotating with an angular velocity a (see Figure 2). The length of crank AB and connecting rod BC are 100 mm and 250 mm respectively. In internal combustion engines the motion between these two elements represents an important design parameter. c) Determine the angular velocity a of the crank AB for the crank-rod-piston mechanism if the system is released from rest with = 60° to = 20°. Also, determine the velocity of point C at the same instant. The masses of the connecting rod BC and the crank AB are 1.8 kg and 1.2 kg respectively. Both AB and BC can be considered as uniform slender rods. See Figure 2 for the length of crank and connecting rods. Use work and energy principle (conservation of energy principle). d) A 4 kg flywheel is attached with an automobile engine crankshaft. It has a radius of gyration about its shaft axis of = 0.2 m. If it is subjected to the torque M=10(1-e) Nm, where t is in seconds and the flywheel is at rest at time + = 0s, determine its angular velocity wat time=3s. Use impulse and momentum principle.
Transcribed Image Text:1 ↓ 100 a 250 Τ I < Figure 2: Crank-connecting rod-piston mechanism (adapted from Hibbeler, 2002) In a multi-cylinder automobile internal combustion engine, crank AB is rotating with an angular velocity a (see Figure 2). The length of crank AB and connecting rod BC are 100 mm and 250 mm respectively. In internal combustion engines the motion between these two elements represents an important design parameter. c) Determine the angular velocity a of the crank AB for the crank-rod-piston mechanism if the system is released from rest with = 60° to = 20°. Also, determine the velocity of point C at the same instant. The masses of the connecting rod BC and the crank AB are 1.8 kg and 1.2 kg respectively. Both AB and BC can be considered as uniform slender rods. See Figure 2 for the length of crank and connecting rods. Use work and energy principle (conservation of energy principle). d) A 4 kg flywheel is attached with an automobile engine crankshaft. It has a radius of gyration about its shaft axis of = 0.2 m. If it is subjected to the torque M=10(1-e) Nm, where t is in seconds and the flywheel is at rest at time + = 0s, determine its angular velocity wat time=3s. Use impulse and momentum principle.
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