InterviewSolution
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InterviewSolution
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What is the formula to compute the moment of inertia of the rotor blade about center of rotation?(a) Ib=\(\int _0 ^R\)mr^2dr(b) Ib=\(\int _0 ^R\)mr^3dr(c) Ib=\(\int _0 ^R \frac {m}{r^2}\)dr(d) Ib=\(\int _0 ^R \frac {m}{r^3}\)drThe question was asked in class test.The query is from Helicopter Rotor and Notations in chapter Helicopter Dynamics of Aerodynamics |
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Answer» CORRECT option is (a) Ib=\(\int _0 ^R\)mr^2dr For explanation: Moment of inertia or ROTATIONAL inertia of the ROTOR blade about the center of rotation is given by: Ib=\(\int _0 ^R\)mr^2dr Where, m is the blade’s MASS per unit length which is a function of r r is radial location of the blade measured from center (r=0) to the tip (r=R) |
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