Evaluation of Motions of Marine Craft in Irregular Seas 



15. Dalzell, John F., "A Note on the Deterministic Calculation of Roll and Heave 

 Response of a Submerged Body in Irregular Seas," Davidson Laboratory, 

 Stevens Institute of Technology, TN 713, February 1964. 



16. Bernicker, R. P., "Deterministic Predictions of the Motions of a Hydrofoil 

 Craft in Irregular Seas," Davidson Laboratory, Stevens Institute of Tech- 

 nology, Report 1003, January 1964. 



Appendix A 

 The wave- induced impulsive response function for a fluid, viz., 



a 



2^ J 



0} \ co\ 



K... = ~ I e~^^"^''^^e''^"da; 



2t 



can be reduced to 



do) 



g 

 and then the integral is converted to a Laplace transform type: 



and this can be found (see, for example. Tables of Integral Transforms, Vol. 1, 

 McGraw Hill, 1954) to be expressed in terms of the complementary error func- 

 tion Erfc: 



Vu;Z) = -J-R WKe ^^Erfc (± ^ l/f 



221-249 O - 66 - 33 497 



