Question

The rotor shown below has a constant angular speed ω of 31.46 rad/s. Determine the balancingcounter weights which are needed at a radius of 100 mm in balancing planes Aand B, and their angular position(s) for dynamic balance of the rotor. All dimensions given are in mm. r1= 60 mm, r2= 40 mm , r3= 90mm and w1= 10 kg, w2= 16 kg , w3= 5 kg .

PLANE 8- PLANEA 1.250 K poy y Qyes by 200 50 50 .2013 13° 80 C 16001 9","10 kg 90 0 200 I A 8 Trat. 40 ir 16 kg 40 -230

Answer 1

Plane. A is referance mil 260 Planes mass (kg) 18000 60 3o 10 O O A tema 51200 W2 40 16 200 go ovo 96 5 W3 1. Fir (fi) F 2. Find B 25ooo DB. loo 250 mo 3. Find 4. Fin - 30 or 5. Fis Oz =300" z = 135° 2 7. 8. MB EB LB 9. (18000 Cos 30 + 51200 (os 300 t goooo Cos 135) + (18000 sin 30 + 51200 sin 300 t goooo sin 135) ² 10. 11 504054272.8 + 800839606 1 1 25000 PO B = 36 123.31 MB = 1.444 kg 800 839 606 tan Of - Emelsing -Imrl Coso. 504054272.8 OB=57.810 2020/7/30 02:33

mri B is Referance plane Planes mass (g) 16 800 25000 MA 25o A MA 108800 170 22 500 S B 02 - Boo Oz= 135 MARANA=(( 168000 10330 + 108800 Cos 300 + 22500 Cos 135) +(168600 Sinzo + 108800 sin 300 +22500 sin 135) = 5.344 33849510.73 x103 H 32334447.18 25ooom = 184070.2 mA = 7.36 kg tanda - Emrising -{mlerose OA -359.94" 2020/7/30 02:33