Question

Q2 A rotor has the following properties. Axial distance Anglefrom first mass Radius magnitude Mass 100mm | θ, 00 9 kg 120 mm 0-60 140 mm | θ.-1350 160 mm 7 kg 320 mm 8 kg 560 120 mm 70 6 kg If the shaft is balanced by two counter masses located at 100 mm radii and revolving in planes midway of planes1 and 2, and midway of 3 and 4, determine the magnitude of the masses and their respective angular positions.

Answer 1

Mats/*jnitude aoUui 00 mm m2 120 mm 108-60 m3 8 k 140 mm 320 mnm 匕 20 nn o n M- k 0o mm 440 mm 0Mm Ltt , the oHey -Hoo counter-masa be m「 and mç. To Put this table into a pitfute - RP plane 9 160mm 00mm 100 mn 100 140 Mim 20mm 60 mwn 220 mm s60 nmm lowted, abehoeen plane ond2 and behoeen plone 3 be he Hefevence cune Let. pJane The qvuhon is of Dynamic ba/ancir^ . TA du ell couple poon erely closed and いple, the cystern.is said tobe dynamic!( co

nanw HicaUlu Lalanted a oell Since nce,foste polygon iu closed - 1듸 i디 and couple polzgon is closed- une (RP distance from seteen te plane ( using the above ejuoion On sOhwing he above 4 eguaHont, uoe et E+92 18 The