Question

Four masses at equal radii and rotating in parallel planes are attached to shaft. In each of the end planes, spaced a distance of 2b apart, there is a mass of 12Kg. The inner planes, spaced a distance 2a apart, are symmetrical with the end planes and each contains 15 Kg. If the masses on the inner planes are at right angles to each other, determine the: (1) The ratio ab. (2) The relative angular position of the other masses to satisfy complete balance.

Answer 1

Solution :

I use the graphical method to solve this problem.

I provide you detailed explaination to solve the problem.

Answer :

Theta D : 208° from mass B

Theta A : 254° from mass B

Ratio a/b : 0.53

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