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ies four masses, A, B 36mm, 39mm and 33 Kg and 4Kg; the axial 500 mm; the eccentr te balance: etween A, B and D. tance between the pla

ies four masses, A, B 36mm, 39mm and 33 Kg and 4Kg; the axial 500 mm; the eccentr te balance: etween A, B and D. tance between the pla

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Example 7.1 A rotating shaft carries four masses, A, B, C and D, rigidly attached to it; the centres of mass are at 30mm, 36mm, 39mm and 33mm respectively from the axis of rotation; A,C and D are 7.5Kg, 5Kg and 4Kg; the axial distance between A and B is 400mm and that between B and C is 500 mm; the eccentricities of A and C are at 90° to one another. Find, for complete balance: a) The angles between A, B and D. b) The axial distance between the planes of revolution of C and D. c) The mass B. в C D D A 47.5 90° 115° -0.4m 0.5m (b) (a)
Transcribed Image Text:Example 7.1 A rotating shaft carries four masses, A, B, C and D, rigidly attached to it; the centres of mass are at 30mm, 36mm, 39mm and 33mm respectively from the axis of rotation; A,C and D are 7.5Kg, 5Kg and 4Kg; the axial distance between A and B is 400mm and that between B and C is 500 mm; the eccentricities of A and C are at 90° to one another. Find, for complete balance: a) The angles between A, B and D. b) The axial distance between the planes of revolution of C and D. c) The mass B. в C D D A 47.5 90° 115° -0.4m 0.5m (b) (a)
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