0
research-article

SPRINGING RESPONSES ANALYSIS AND SEGMENTED MODEL TEST ON A 550,000 DWT ORE CARRIER

[+] Author and Article Information
Hui Li

College of Shipbuilding Engineering, Harbin Engineering University, Harbin, Heilongjiang 150001, China
huili@hrbeu.edu.cn

Di Wang

College of Shipbuilding Engineering, Harbin Engineering University, Harbin, Heilongjiang 150001, China
wangdi2535@126.com

Chengming Zhou

College of Shipbuilding Engineering, Harbin Engineering University, Harbin, Heilongjiang 150001, China
zcming@hrbeu.edu.cn

Kaihong Zhang

College of Shipbuilding Engineering, Harbin Engineering University, Harbin, Heilongjiang 150001, China
jack194988@163.com

Huilong Ren

College of Shipbuilding Engineering, Harbin Engineering University, Harbin, Heilongjiang 150001, China
renhuilong@263.net

1Corresponding author.

ASME doi:10.1115/1.4039160 History: Received November 13, 2016; Revised January 12, 2018

Abstract

In hydroelastic model tests, segmented ship models are usually used to make sure that the model scale and full size ship satisfy the similarity law of structural natural frequency and distribution of ship bending stiffness. However, springing barely occurs in those tests because the natural frequency of segmented ship models are too high for the regular waves required to be generated in a tank. In order to investigate the springing effect, three sets of backbone of variable cross section are adopted in the test. One set of the backbones is satisfied with the similarity law of natural frequency, and two extra sets of low stiffness backbone are used so that the springing effect can appear and be measured. Experimental results show that the springing occurs when the wave encounter frequency coincides with the first elastic natural frequency of the ship, or with half or one-third of it. A good agreement has also been obtained between the experimental and the numerical results by a 3D hydroelastic method. Based on these results, the contribution of the springing responses to the fatigue damage of the ship is estimated and analyzed.

Copyright (c) 2018 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In