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Originally Posted by fatoni
they are flexible because of the nature of the steel. they dont want them flexible. they just dont want them brittle either. you cant have both as far as the materials are concerned. thats why they go through the trouble of forging things and designing structurally sound components.
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Yes. However a forged crank will still flex some, but is inherently stronger due to the forging process and because that is a necessity of that certain engine design.
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flex in a crankshaft is just robbing power from the motor just like flex in a chassis is adding a vague feeling to the suspension.
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I don't disagree with your statement.
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This is a bit extreme however @0:13 you can understand the need for this container ship to flex in rough weather. I know it's not exactly the same, but part of the concept can be applied to
certain components of a cars chassis.
Additionally this will come down the the design of the chassis and cost of said materials. It's all about the money, as always...