Frequency Distribution of Period in Irregular Oscillation
Daikaku Manabe · Journal of the Society of Naval Architects of Japan · 1963
Probability density distribution of time interval between adjacent amplitude is analysed by the time series theory and investigated by many data of ship's oscillation.The distribution function of period of zeros is expressed approximatelyp (τ) _??_|M24|/√ (ψ02-ψγ2) 3÷CwhereC=∫0∞p (τ) dτψγ : correlation function, ψ0=ψγ|γ : mean square of instantaneous irregular amplitude, M24=ψγ'' (ψ02-ψγ2) +ψγψγ'2