Two heavy rotating masses are connected by shafts of length $${{l}_{1}},{{l}_{2}}$$ and $${{l}_{3}}$$ and the corresponding diameters are island (/3.This system is reduced to a torsionally equivalent system having uniform diameter $${{d}_{1}}$$ of the shaft. The equivalent length of the shaft is equal to:

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TuteeHUB · Accepted Answer

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TuteeHUB · Answer

$${{l}_{1}}+{{l}_{2}}+{{l}_{3}}$$

TuteeHUB · Answer

$$\frac{{{l}_{1}}+{{l}_{2}}+{{l}_{3}}}{3}$$

TuteeHUB · Answer

$${{l}_{1}}+{{l}_{2}}{{\left( \frac{{{d}_{1}}}{{{d}_{2}}} \right)}^{3}}+{{l}_{3}}{{\left( \frac{{{d}_{1}}}{{{d}_{3}}} \right)}^{3}}$$

TuteeHUB · Answer

$${{l}_{1}}+{{l}_{2}}{{\left( \frac{{{d}_{1}}}{{{d}_{2}}} \right)}^{4}}+{{l}_{3}}{{\left( \frac{{{d}_{1}}}{{{d}_{3}}} \right)}^{4}}$$

1.	Two heavy rotating masses are connected by shafts of length \[{{l}_{1}},{{l}_{2}}\] and \[{{l}_{3}}\] and the corresponding diameters are island (/3.This system is reduced to a torsionally equivalent system having uniform diameter \[{{d}_{1}}\] of the shaft. The equivalent length of the shaft is equal to:
A.	\[{{l}_{1}}+{{l}_{2}}+{{l}_{3}}\]
B.	\[\frac{{{l}_{1}}+{{l}_{2}}+{{l}_{3}}}{3}\]
C.	\[{{l}_{1}}+{{l}_{2}}{{\left( \frac{{{d}_{1}}}{{{d}_{2}}} \right)}^{3}}+{{l}_{3}}{{\left( \frac{{{d}_{1}}}{{{d}_{3}}} \right)}^{3}}\]
D.	\[{{l}_{1}}+{{l}_{2}}{{\left( \frac{{{d}_{1}}}{{{d}_{2}}} \right)}^{4}}+{{l}_{3}}{{\left( \frac{{{d}_{1}}}{{{d}_{3}}} \right)}^{4}}\]
Answer» E.

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