University of Michigan
College of Engineering

Department of Naval Architecture and Marine Engineering

ENGINEERING for the MARINE ENVIRONMENT

Nonlinear Unsteady Ship Hydrodynamics


Introduction

The Department of Naval Architecture and Marine Engineering (NA&ME) at the University of Michigan has been involved in nonlinear ship motions research for several years. The objective of the research is to improve our understanding of the nonlinear effects of large motions of a body, and the impact forces developed during bottom and bow flare slamming.

The Marine Hydrodynamics Laboratory of the NA&ME has conducted seakeeping tests on a model of a Navy CG-47 class Cruiser to determine motions, sectional forces and sectional wetted surfaces in regular head seas. The work was sponsored by the Office of Naval Research, Arlington VA.

A complete report including details of the experiments, discussion of results data and graphs has been submitted to the ONR. The purpose of this document is to make the report, data and accessories available to anyone interested.


Viewing and downloading information

Individual files of measured time histories for scientific enquiry are available under the following categories: The complete analysis and background information can be found in the report titled:

Experimental Results of Nonlinear Seakeeping Motions, Wetted Surface and Sectional Force Tests on a Ship with Large Bow Flare

by S. B. Cohen is available online. The report is divided into five sections: Manuscript , Appendix A - Cross References , Appendix B - Tables , Appendix C - Illustrations , Appendix D - Graphical Time Histories . The time histories are also available in ascii format. This information is also available in hard copy.


Project Personnel