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Q and A video streaming session (31 Mar 2020)

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Cheers
Stuart

× Welcome to the CPL AGK question and answer forum. Please feel free to post your questions but more importantly also suggest answers for your forum colleagues. Bob himself or one of the other tutors will get to your question as soon as we can.

Reciprocating loads

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MissSoph created the topic: Reciprocating loads

Can I please ask someone to clarify reciprocating loads for me? Thank you
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bobtait replied the topic: Reciprocating loads

To put it as simply as possible, reciprocating loads are loads resulting from any rapid 'back and forth' motion such as a piston moving rapidly down the cylinder, stopping, and then moving rapidly back up the cylinder. They are really caused by the inertia of the moving object (piston in this case).

When a piston is forced to either suddenly stop or start moving, its inertia resists that change. This is felt as a strain on the bearings at the big end of the crankshaft and at the top of the connecting rod. The higher the RPM, the faster the piston must change direction from down to up or up to down. Reciprocating loads increase rapidly as RPM increases.

The valves also suffer reciprocating loads.
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MissSoph replied the topic: Reciprocating loads

Thanks bob... I was on the right track... but the clarification is fantastic... appreciate it
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