Comparison Study of Long-Term Extreme Value on Wave Loads for Different Routes of a High Speed Trimaran

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簡歷

基本資料

Project title

Code/計畫編號

MOST106-2221-E019-047

Translated Name/計畫中文名

不同航線下高速三體船之波浪負荷長期極值比較研究

Project Coordinator/計畫主持人

Chih-Chung Fang

Funding Organization/主管機關

National Science and Technology Council

Department/Unit

Department of Systems Engineering and Naval Architecture

Website

https://www.grb.gov.tw/search/planDetail?id=12244928

Year

2017

Start date/計畫起

01-08-2017

Expected Completion/計畫迄

01-07-2018

Bugetid/研究經費

637千元

ResearchField/研究領域

機械工程

"本計畫研究重點在於不同航線下，應用三維小板法進行高速三體船之船體橫剖面及橫跨甲板縱剖面各處所承受之波浪負荷，探討不同航線全年及四季長期運動、波浪負荷極值之差異性。三體船船體結構所遭受到負荷主要來自於波浪，不同地區海域，波高、波向以及波浪週期都會不同，船舶隨著航行航線的不同，會產生不同的波浪負荷，本研究首先搜集並分析臺灣周圍之不同航線之長期波浪統計環境資料，比較三體船於不同航線航行時，船體所發生之長期運動、波浪負荷極値，期找出三體船結構設計之重點波浪負荷以及最適合航行之海域航線，在不影響航行安全情況下，達成三體船結構輕量化之設計需求，提昇國內在三體高速客輪之結構直接計算分析之核心競爭力。" "The structural hull of trimaran must be a light weight design in order to achieve high speed performance and lower fuel consumption. Base on different kinds of wave characteristics and different ocean environments, a high speed trimaran needs to be light weight design as well as safely sailing during its service life. The purpose of this study focuses on comparing with long-term extreme values on ship motions and wave loads of the trimaran in different routes. The global loads of a trimaran in oblique waves have been investigated by means of the 3 D panel method. The wave loads including the shear forces, bending moments and torsional moments at different transverse sections of the trimaran ship hull and longitudinal section of connected deck are predicted at various wave heading and frequencies. In this study, the characteristics of longitudinal and transverse sectional wave load responses of the trimaran ship in irregular waves will be discussed. The scatter diagrams of North Atlantic and three different routes around Taiwan are used to analyses the ship motions and extreme wave loads of exceeded probability of trimaran. This will be a kernel technique for analysing the ultimate and fatigue structural strength of a trimaran."

Keyword(s)

三體船
三維小板法
負荷極值
不同航線
長期波浪統計
Trimaran
3 D panel method
Extreme load
different route
Long-term wave statistics

DSpace CRIS

Comparison Study of Long-Term Extreme Value on Wave Loads for Different Routes of a High Speed Trimaran

基本資料

Description