MODEL STUDIES OF THE DYNAMICS OF AN LSM MOORED IN WAVES

Proceedings of the International Conference on Coastal Engineering

R. A. Dilley¹  K. E. Beebe¹  R. L. Wiegel¹ 

[1] University of California, Berkeley, California

关键词: ship model studies;    mooring analysis;    roll damping;   

DOI  :  10.9753/icce.v6.51

学科分类：建筑学

来源: Coastal Engineering Research Council

【 摘 要 】

Presented in this report are the results of model tests performed todetermine the motions of a moored LSM (Landing Ship Medium) and the associated mooring cable forces when subjected to the action of uniform periodic water waves. Details are given of the design and construction of the 1:60 scale model LSM and the dynamic balancing of the model. Principles of the designs of the model mooring cables and of the meter for measuring the cable forces are also presented. The use of the laboratory equipment, such as the wave-towing tank, the model basin, the photography equipment, and the force and wave height meters are described, and the testing procedure is outlined. The data are presented in terms of the prototype in graphical form. Resonance conditions in the surging and heaving motions and the associated high cable forces, are shown to exist for some initial cable tensions within the range of wave periods normal encountered in many ocean areas. The effect of a roll damping device is shown.

【 授权许可】

Unknown