- Tutorial 3 Static Balancing Q1 The Rotor Of The Figure Shown Rotates With A Speed Of 40 Rpm Has The Following Propert 1 (77.83 KiB) Viewed 36 times
Tutorial 3 (Static Balancing) Q1) The rotor of the figure shown rotates with a speed of 40 rpm has the following properties: mass m (kg)r (mm) angle m mi 5 5 190 0 r m2 3 120 70 70 r -O m Determine the amount and location of the counterweight required for static balance. Then calculate the centrifugal force generate by the counterweight. - Mathematically/Analytically - Graphically Ans: merc = 1125.06 kg.mm 0% = 197.489 Fc = 19.7 N Q2) Four masses A, B, C and D are 100 kg, 150 kg, 120 kg and 130 kg attached to a shaft and revolve in the same plane. The corresponding radii of rotations are 22.5 cm, 17.5 cm, 25 cm and 30 cm and the angles measured from A are 45°,120° and 255º. (1) Tabulate all the given data in a table. (ii) Draw the space diagram and vector diagram if the mass A is used as the reference plane. (iii) Calculate the position and magnitude of the balancing mass if the radius of rotation is 60 cm. Ans: m= 29 kg, 0 = 203°