V2EX freeboard

Freeboard

释义 Definition

干舷:在船舶/浮体上,指水线到主甲板(或规定的上缘)之间的垂直距离。干舷越大,一般意味着在风浪中甲板更不易进水、储备浮力更充足。(该词在其他领域也可引申使用,但最常见于航海与船舶工程。)

发音 Pronunciation

/fribrd/

例句 Examples

The ship has a high freeboard.
这艘船的干舷很高。

In rough seas, increasing freeboard helps reduce deck flooding and improves reserve buoyancy, though it can also raise windage.
在风浪较大的海况下,增加干舷有助于减少甲板进水并提高储备浮力,不过也可能增大受风面积。

词源 Etymology

freeboardfree(在此可理解为“露出水面、未被水覆盖的”)+ board(早期可指船舷板/舷侧木板)组合而来,字面含义接近“露出水面的船舷部分”。后来在船舶设计与检验中固定为衡量水线以上高度的专业术语。

相关词 Related Words

文献与作品 Literary / Notable Works

  • Principles of Naval Architecture(SNAME,美国船舶与海洋工程师学会经典教材)
  • Ship Design and Construction(船舶设计与建造领域常用参考书)
  • SOLAS Convention(《国际海上人命安全公约》,涉及船舶安全与相关检验概念)
  • Load Line Convention(《国际载重线公约》,与干舷/载重线规定直接相关)
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