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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.
state and prove varigan theorm?
what are the necessity of lubrication ?
Arc-Welding Processes Arc-welding includes those welding processes wherein heat required for welding is derived from an arc powered by electrical energy, may be AC of DC as s
the cable AB which connects two structures carries a tension of 400N. express the force F which acts on point A as a vector in terms of the unit vector.determine the project of F
The problem: - Deaf blind people have a huge problem when crossing the streets. They always need assistance from a sighted person or a trained dog to cross the street. There i
Q. Define the Moving boat method? Moving boat method has been more recently evolved and tested in the U.S.A. and holds promise in measurement of discharge of big rivers and tid
The Circular Orbits The bounded motion of a particle in a central force is in general an ellipse given by where eccentricity e is related to semi-major and minor axes a
Illustrate with required expression for Hammer Blow, Variation of tractive force, and Swaying Couple.
A hollow circular shaft has an internal diameter of 48 mm and an external diameter of 54 mm. Calculate the shear stress produced at the outer and inner surfaces of the shaft when t
Simply Supported Beam: Simply Supported Beam: The beam on which both ends are supported, either by point load or hinged or roller support.
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