Abstract
The response of an ocean going vessel can often be represented as a Gaussian stochastic process. This paper presents a method of predicting the extreme values of such a process, allowance being made for the clumping of peaks. The method draws upon the considerable amount of published literature which is available concerning the limiting decay rate of first crossing probability of a linear oscillator, which is then modified to be applicable to a process having a general spectrum. Results of this method are compared with those of time domain simulation and much closer agreement is found than is obtained from the frequently used assumption of independent peaks.
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