Define linear velocity, angular velocity, absolute velocity and state the relation between linear velocity and angular velocity.
Relation between linear and angular velocity: V = ω.r
2
In reciprocating engine the crank is 250 mm long and connecting rod is 1000 mm long. ..........
Solution of problem on Reciprocating Engine :
PQRS is a four bar chain with PS fixed length of links are PQ = 62.5 mm, ........
Describe stepwise procedure for determination of velocity and acceleration by Klein’s construction with suitable data.
Steps in Klein’s construction :
Define linear velocity, angular velocity, absolute velocity and state the relation between linear velocity and angular velocity.
Explain single cylinder 4-stroke I.C. engine using turning moment diagram.
A turning moment diagram for a four stroke cycle internal combustion engine, we know that in a four stroke cycle internal combustion engine, there is one working stroke after a crank has turned through two revolution i.e.7200 . Since the pressure inside the engine cylinder is less than the atmospheric pressure during suction stroke therefore a negative loop is formed. During the compression stroke, the work is done on gases, therefore a higher negative loop is obtained.
In a slider crank mechanism shown in figure 1................
Calculations:
i) Velocity of crank AO:
VAO = (r X ω ) X (480 X 20)
aab = l(ab) X Scale = 4.3 X 40 X 103
aab = 172 X 10 mm/sec2
PQRS is a four bar chain with link PS fixed..........
In a slider crank mechanism the length of crank and connecting rod are 100mm ..........
Define the terms linear velocity, relative velocity, angular velocity and angular acceleration.
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