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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.
Find the tangential and normal components of acceleration: A fly wheel along diameter 400 mm begins from rest with constant angular acceleration 2 rad/sec 2 . Find out the tan
Q. Shut-off valves on major zone? Are shut-off valves on major zone branches and on the bottom and top of riser? Are balancing valves on return branches? Are control valves on
Question. Consider the triangular laminar D for given b and h shown below. (a) Find x L (s) and x R (s), the left and right ends of the elementary strip, of thickness ds, a
With the aid of a sketch, describe the motion of a solid particle settling in a liquid and discuss the effect on it of applying a centrifugal force. Define the terms Separating
Determine formula for Elongnation of body due to it''s Self Weight
Question: As shown in the figure, the jet transport B is flying north with a velocity V B = 600 Km/h when a smaller aircraft A passes underneath the transport headed in the 60
Introduction And Over View Of Various Manufacturing Process The main aim behind advances in engineering and technology has been to raise the standard of living of man and to ma
Five kilograms of continuous boron fibers are introduced in a unidirectional orientation into 8 kg of an aluminum matrix. Calculate a. the density of the composite b.
In a 15 TR ammonia refrigerator plant the condensing temperature is 25 0 C and the evaporative temperature is -10 0 C. The refrigerant ammonia is subcooled by 50C before passing th
Find out the velocity of the chain: Figure shows a metal chain ABC where portion BC is of length 0.4 metres and is hanging vertically, & portion AB of length 0.8 metres rests
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