Preliminary parametric estimation of steel weight for new ships

Cheng Kuan Lin, Heiu-Jou Shaw

研究成果: Article同行評審

5 引文 斯高帕斯(Scopus)

摘要

This paper presents an agile method for accurately estimating the steel weight of a new ship in the preliminary design stage. A container ship database within a three-dimensional computer-aided design system was used to facilitate the division of a ship into several estimated structural sections, including the forward, cargo, engine room, aft, etc. This procedure is an improvement over the traditional parametric estimation process, which only estimates a rough weight for an entire ship based on specific empirical formulas and then assigns a weight to each part of the ship manually. To estimate the steel weight of a new ship, the parameters of the individual sections are referenced from a similar vessel automatically selected using the principal dimension. Next, principal component analysis is applied to define the principal parameters, i.e., the principal dimension, the feature of each section and the fitting coefficient of the principal parameters. The general equations with the highest correlative predictor variables for the individual sections are then obtained by regression. Comparing the estimation variability, the section estimation provides a more accurate steel weight and constitutes a new means of efficiently obtaining the weight distribution to support the various aspects of preliminary design, i.e., the determination of the center of gravity, the design of the ship lines and ship performance evaluation.

原文English
頁(從 - 到)227-239
頁數13
期刊Journal of Marine Science and Technology (Japan)
21
發行號2
DOIs
出版狀態Published - 2016 六月 1

All Science Journal Classification (ASJC) codes

  • 海洋學
  • 海洋工程
  • 材料力學
  • 機械工業

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