船舶抛锚作业锚机刹车最小临界水深计算

船舶抛锚过程中锚机刹车最小临界水深的准确计算一直是海船船长关注的问题.抛锚过程中,锚链不断地从锚链舱滑出,滑出的这部分锚链的质量在不断变化,是一个变质量系统,用牛顿经典力学定律很难准确计算出重力抛锚方式下,锚机刹车能保持有效控制的最小临界水深.运用密氏方程结合运动学原理进行计算的方法,可以获得比较可靠的计算结果.

Calculation of Minimum Water Depth to Brake the Anchor Chain during Anchoring

Accurate calculation of the minimum sea water depth for dropping anchor has been a top concern of oceangoing vessel's captains. The mass of the anchor chain out of chain locker is constantly changing in dropping process, so anchor chain is an ever-changing mass system. It is difficult to calculate accurately the minimum water depth for anchor gear to be braked effectively in weight dropping mode by Newton classical mechanical law. Michaelis-Menten equation is introduced, with which it is relatively easy to give a comparatively reliable computed results of the minimum water depth for anchor-casting.