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Dynamics of MachineryExplain the balancing of primary and secondary forces in reciprocating engines. Derive the conditions for complete balancing of primary and secondary forces.20267mDynamics of MachineryPartial balancing is particularly important in: (i) Steam turbines (ii) Locomotives (iii) Electric motors (iv) Centrifugal pumps.20262mDynamics of MachineryFor a two-cylinder locomotive with cranks at 90°: reciprocating mass per cylinder = 300 kg; crank radius = 0.3 m; driving wheel diameter = 1.8 m; distance between cylinder centre lines = 0.65 m; distance between driving wheel central planes = 1.55 m. Determine (i) the fraction of reciprocating masses to be balanced if hammer blow is not to exceed 46 kN at 96.5 km/h, (ii) variation in tractive effort, and (iii) maximum swaying couple.20267mDynamics of MachineryWrite a short note on reciprocating masses balancing by revolving mass.20267m
PreviousPartial balancing is particularly important in: (i) Steam turbines (ii) Locomotives (iii) Electric motors (iv) Centrifugal pumps.NextIn viscous damping, the damping force is proportional to: (i) Displacement (ii) Velocity (iii) Acceleration (iv) Mass.
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