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The stroke of a steam engine is 600 mm and the length of connecting rod is 1.5 m. The crank rotates at 180 r.p.m. Determine: (a) Velocity and acceleration of the piston when the crank has travelled through an angle of 40o from the inner dead centre. (b) The position of the crank for zero acceleration of the piston?
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The stroke of a steam engine is 600 mm and the length of connecting ro...
Velocity and acceleration of the piston at 40o from inner dead centre:
- Given data: Stroke = 600 mm = 0.6 m, Connecting rod length = 1.5 m, Crank rotation = 180 rpm
- First, calculate the distance travelled by the piston using the formula: Distance travelled by piston = Stroke + (Connecting rod length * cosθ)
- Substituting the values, we get: Distance = 0.6 + (1.5 * cos40) = 1.43 m
- Next, calculate the velocity using the formula: Velocity = Distance * angular velocity
- Angular velocity = (180 rpm * 2π) / 60 = 6π rad/s
- Substituting the values, we get: Velocity = 1.43 * 6π = 26.95 m/s
- Finally, calculate the acceleration using the formula: Acceleration = (Velocity^2) / (Connecting rod length)
- Substituting the values, we get: Acceleration = (26.95^2) / 1.5 = 485.1 m/s^2

Position of the crank for zero acceleration of the piston:
- For zero acceleration of the piston, the connecting rod and the piston must be perpendicular to each other.
- This occurs when the crank is at 90o from the inner dead centre.
- Therefore, the position of the crank for zero acceleration of the piston is at 90o from the inner dead centre.
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The stroke of a steam engine is 600 mm and the length of connecting rod is 1.5 m. The crank rotates at 180 r.p.m. Determine: (a) Velocity and acceleration of the piston when the crank has travelled through an angle of 40o from the inner dead centre. (b) The position of the crank for zero acceleration of the piston?
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The stroke of a steam engine is 600 mm and the length of connecting rod is 1.5 m. The crank rotates at 180 r.p.m. Determine: (a) Velocity and acceleration of the piston when the crank has travelled through an angle of 40o from the inner dead centre. (b) The position of the crank for zero acceleration of the piston? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about The stroke of a steam engine is 600 mm and the length of connecting rod is 1.5 m. The crank rotates at 180 r.p.m. Determine: (a) Velocity and acceleration of the piston when the crank has travelled through an angle of 40o from the inner dead centre. (b) The position of the crank for zero acceleration of the piston? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The stroke of a steam engine is 600 mm and the length of connecting rod is 1.5 m. The crank rotates at 180 r.p.m. Determine: (a) Velocity and acceleration of the piston when the crank has travelled through an angle of 40o from the inner dead centre. (b) The position of the crank for zero acceleration of the piston?.
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