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A semi-elliptic multi-leaf spring is needed for the suspension of the rear axle of a truck. It consists of two extra full-length leaves and ten graduated length leaves including the master leaf. The centre - tocentre distance between the spring eyes is 1.2 m. The leaves are build of steel 55Si2Mo90 (Syt = 1500 n/mm2 and E = 207000 N/mm2) and the factor of safety is 2.5. The spring is to be designed for a maximum force of 30 KN. The leaves are pre-stressed so as to same stresses in all leaves. Evaluate :
(i) The cross-section of leaves, and
(ii) the deflection at the end of the spring.
sorting order of arra
Q. Define Pattern draft or taper? It is also termed as "draw". It is the taper placed on the pattern surface that are parallel to the direction in which the pattern is withdraw
clasius inequality
Calculated the slope of the cantilever: Calculated the slope of the cantilever given in Example 6 at its free end. Solution To find out rotation in a beam we must have
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specifications of lathe.
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Compare Petrol engine with Diesel engine with each other ( i ) Basic cycle: Petrol Engine work on Otto cycle whereas Diesel Engine work on diesel cycles. ( i i )
In the drawing, the weight of the block on the table is 380 N and that of the hanging block is 215 N. Ignore all frictional effects, and assuming the pulley to be massless.
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