Abstract
An innovative and accurate method for estimating the steel weight and center of gravity (COG) of a ship in the preliminary design phase, named feature-based segment estimation (FSE), is presented. The method is based on principal component analysis (PCA) and includes corrections to capture ship features that are neglected by PCA. The feature analysis is based on three-dimensional (3D) computer-aided design (CAD) tools, which are used to build a framework of the ship components, deriving the general steel weight formulas and developing correction methods. The method uses PCA to identify the principal parameters from a set of the ship's parameters and the main structural components, or segments, and to derive general equations for estimating the steel weight. Then, the estimated weight is adjusted using least squares regression based on the features of each structural segment. We demonstrate the practicality and effectiveness of the proposed method by applying 10 modern designs ranging from 1000 to 8500 twenty-foot equivalent units (TEU). The estimated results are presented and compared with those of the standard method, which consists of estimating the weight of the entire ship.
| Original language | English |
|---|---|
| Pages (from-to) | 193-203 |
| Number of pages | 11 |
| Journal | Ocean Engineering |
| Volume | 107 |
| DOIs | |
| Publication status | Published - 2015 Aug 19 |
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All Science Journal Classification (ASJC) codes
- Environmental Engineering
- Ocean Engineering
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Feature-based estimation of steel weight in shipbuilding. / Lin, Cheng Kuan; Shaw, Heiu-Jou.
In: Ocean Engineering, Vol. 107, 19.08.2015, p. 193-203.Research output: Contribution to journal › Article
TY - JOUR
T1 - Feature-based estimation of steel weight in shipbuilding
AU - Lin, Cheng Kuan
AU - Shaw, Heiu-Jou
PY - 2015/8/19
Y1 - 2015/8/19
N2 - An innovative and accurate method for estimating the steel weight and center of gravity (COG) of a ship in the preliminary design phase, named feature-based segment estimation (FSE), is presented. The method is based on principal component analysis (PCA) and includes corrections to capture ship features that are neglected by PCA. The feature analysis is based on three-dimensional (3D) computer-aided design (CAD) tools, which are used to build a framework of the ship components, deriving the general steel weight formulas and developing correction methods. The method uses PCA to identify the principal parameters from a set of the ship's parameters and the main structural components, or segments, and to derive general equations for estimating the steel weight. Then, the estimated weight is adjusted using least squares regression based on the features of each structural segment. We demonstrate the practicality and effectiveness of the proposed method by applying 10 modern designs ranging from 1000 to 8500 twenty-foot equivalent units (TEU). The estimated results are presented and compared with those of the standard method, which consists of estimating the weight of the entire ship.
AB - An innovative and accurate method for estimating the steel weight and center of gravity (COG) of a ship in the preliminary design phase, named feature-based segment estimation (FSE), is presented. The method is based on principal component analysis (PCA) and includes corrections to capture ship features that are neglected by PCA. The feature analysis is based on three-dimensional (3D) computer-aided design (CAD) tools, which are used to build a framework of the ship components, deriving the general steel weight formulas and developing correction methods. The method uses PCA to identify the principal parameters from a set of the ship's parameters and the main structural components, or segments, and to derive general equations for estimating the steel weight. Then, the estimated weight is adjusted using least squares regression based on the features of each structural segment. We demonstrate the practicality and effectiveness of the proposed method by applying 10 modern designs ranging from 1000 to 8500 twenty-foot equivalent units (TEU). The estimated results are presented and compared with those of the standard method, which consists of estimating the weight of the entire ship.
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U2 - 10.1016/j.oceaneng.2015.06.013
DO - 10.1016/j.oceaneng.2015.06.013
M3 - Article
AN - SCOPUS:84939504122
VL - 107
SP - 193
EP - 203
JO - Ocean Engineering
JF - Ocean Engineering
SN - 0029-8018
ER -