English Dictionary

metacentric height

名詞

(nautical, physics) The vertical distance between the metacentre and center of mass (conventionally taken to be positive when the metacentre is above the center of mass, and negative when the center of mass is above the metacentre) of a vessel (such as a ship or a boat) when the vessel is upright with zero bank angle; measures the vessel's tendency to resist being rolled from the upright orientation; must be positive in order for the vessel to have positive static stability.

日本語の意味

船舶や船艇などが静止状態にある際に、メタセンター（浮体が傾いた時の仮想的な浮心の上方位置）と重心との間に存在する鉛直距離を指す。通常、メタセンターが重心より上に位置すると正の値となり、船の静的安定性、すなわち転覆抵抗性を示す指標となる。

The captain ordered the engineers to measure the metacentric height to ensure the ship's stability before leaving port.

船長は出港前に船の安定性を確保するため、復元高（メタセンターと重心の間の垂直距離）を技術者に測定するよう指示した。

意味（1）

(nautical, physics) The vertical distance between the metacentre and center of mass (conventionally taken to be positive when the metacentre is above the center of mass, and negative when the center of mass is above the metacentre) of a vessel (such as a ship or a boat) when the vessel is upright with zero bank angle; measures the vessel's tendency to resist being rolled from the upright orientation; must be positive in order for the vessel to have positive static stability.

The distance from a ship's center of gravity (G) to its metacenter is known as the metacentric height (GM). GM is a measure of the vessel's ability to right itself when experiencing an overturning moment. For the same vessel, a higher GM value indicates a greater initial static stability.

metacentric heights （ plural ）