Joint Seakeeping Response Processes for Determining Structural loads

September 25, 2002

Naval architects studying the structural dynamics of ships or other seakeeping responses have an interest in joint responses such as the concurrent six-degree-of-freedom hull girder loads. Traditional treatments of seakeeping have focused primarily on the statistics of individual responses. The following paper examines and elucidates the relationship between a variety of methods appropriate to the statistical characterization of joint responses, including phase co-factors, cross co-spectral moments and joint normal techniques. Finally, it posits a method to encompass an equivalent irregular wave, as a proposed extension of ABS’s dynamic loading approach (DLA).

Full paper: SNAME Joint Seakeeping Response Processes

Author: Bruce L. Hutchison