Determine intial preload requried to close gap and deflction


A semi elliptical leaf spring is used for the suspension of the rear axle of a truck it consistsof two extra full lenth leaves including the master leaf the center distance between the springs eyes is 1.2m.the leaves are made of steel with ultimate stress 1500mpa youngs modulus is 2.07*10*5 mpa, fos is 2.5 spring is to be designed for maxmum force 30kn the leaves are pre stressed so as to equlize stresses in all leaves determine

1.c s of leaves
2.intial nip
3.intial preload requried to close the gap
4.deflction of the spring

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Mechanical Engineering: Determine intial preload requried to close gap and deflction
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