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A helical compression spring is used to take the shock. The initial compression of the spring is 30 mm and it is further compressed by 50 mm while absorbing the shock. The spring is to absorb 250 J of energy during the procedure. The spring index will be taken as 6. The spring is made of patend and cold drawn steel wire with ultimate tensile strength of 1500 N/mm2 and modulus of rigidity of 81370 N/mm2 . The permissible shear stress for the spring wire could be taken as 30 % of the ultimate tensile strength. Design the spring.
Let consider the breakwater configuration shown in the figure below. The incident wave conditions at the breakwater are a wave height of 1.5m, wave period of 7.0s and a wave crest
Limit of proportionality: Limit of proportionality is the stress at which the stress - strain diagram ceases to be a straight line that is, stress at which the extension ceas
Tension in the string and acceleration of body: The two bodies weighing 300N and 450N are hung to two ends of the rope passing over an ideal pulley as shown in the figure giv
Gears : A gear is a disc with teeth on its boundary. If these teeth are formed at its inner boundary then this gear is known as an internal gear (annulus). These types of gears ar
TO Study And Design Of Pattern A pattern is an element used for making cavities in the mould, into which molten metal is poured to produce a casting. It is not an exact replica
(a) Describe heat engine. How is this engine characterized? (b) Describe Perpetual motion machines of first kind and second kind, i.e. PMM1 and PMM2. Are such machines possible
(a) Show by use of Buckingham's Pi-Theorem that the velocity through an orifice is given by V = √2gH f D/H , M/ΡVH , σ/ΡV 2 H . Where H is the head causing flow, D is the diame
Determine the dimensions of the tank: A conical water tank is to be fabricated from steel plate of 10 mm thickness. The shell should contain an apex angle (α) 15o. If the perm
Find out the reactions at point: A beam AB is hinged at A and is supported at C. It is loaded as revealed in Figure. Find out the reactions at A and C. Solution L
(a) Draw neatly and accurately the Merchant force circle diagram. Mention clearly the forces involved, the constructional steps and the assumptions made [do not derive the forces]
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