1976 年 24 巻 266 号 p. 145-152
The dynamical similarity rules for rigid and articulated rotor blades with a pitch angle are derived.
The blade dynamics is described as a linear and elastically coupled vibration system which contains three typical similarity parameters, whose eigen values and eigen functions are numerically determined by the power method.
It is found that the effects of the similarity parameters on the vibration characteristics are more dominant for a rigid blade than for an articulated one.
It is also shown that dynamical simulation techniques for a rotor blade become easier if composite materials which have high modulus to density ratio, E/ρ, could be utilised.