Which mechanism converts reciprocating piston motion into continuous rotary motion_______________?
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Answer: B. slider crank
Explanation
Slider-crank mechanisms consist of a crank, a connecting rod, and a sliding piston forming a closed kinematic chain. This specific geometric arrangement converts linear reciprocating motion into continuous rotational movement of the crank. It serves as the core conversion mechanism in nearly all standard internal combustion engines and reciprocating compressors. The slider-crank is one of the most important and widely utilized mechanisms in mechanical engineering history. It features a combination of turning pairs at the pin joints and a sliding pair at the piston crosshead. Kinematic analysis of this mechanism determines piston velocity and acceleration profiles throughout the rotation cycle.
A crosshead guides the piston rod linearly but does not perform the primary motion conversion function alone. The connecting rod transmits force between the piston and crank but relies on the complete slider-crank assembly. A gudgeon pin connects the piston to the connecting rod, serving as a hinge joint rather than the whole mechanism.
- Subject
- Engineering
- Category
- Mechanical Engineering
- Topic
- —
- Difficulty
- medium
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