A A simply supported beam having a span of 4 m supports a machine having weight of 50 kN at it midspan as shown in figure below. The motor runs at 300 rpm and the rotor is out of balance to the extent of w(weight of rotor) = 400 N at a radius r(eccentricity) = 270 mm. Calculate %3D amplitude at steady state respönse. Assume viscous damping of system to be 10% of chtical damping, elastic modulus is 2 x 10° N/mm? and moment of inertia is 50 x 106 mm4. MAR = 270 1blications mm

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British Gravitational Bg System Of Units

Measuring is the comparison of a particular physical quantity with its reference value. A unit is a fixed physical quantity. The length is a physical quantity. A physical quantity is the product of a unit and the numerical value we need to compare with.