Design a straight ended helical torsion spring for a static load 200 N-m at a deflection...

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Mechanical Engineering

Design a straight ended helical torsion spring for a static load200 N-m at a deflection of 45 deg with a safety factor of 1.8.Specify all parameters necessart to manufacture the spring stateall assumntions. You make the following design choices:

*Use unpeened oil tempered wire with 40mm long, straight ends.The coil is loaded to close it

* Design safety factory Nyd=1.8

*spring index C=11

*Yield Strength Factor K=0.85

*length of the ends L1=40 mm=L2

*Material choice = ASTMA299wire

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