Ships have always needed ballast to operate successfully. Ships have always carried solid ballast which was found in form of rocks, sand and many other heavy materials. These were loaded and unloaded when the cargo loading or the discharge operation was finished. This method helpeded maintaining the stability of the ship and its seaworthiness. The main idea of this paper is to realize a complex analysis of tracing the shapes and the stability of ship and sizing of ballast tanks.

中文翻译：

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压载舱尺寸和船舶稳定性分析

船舶一直需要压载物才能成功运行。船舶一直携带固体压载物，这些压载物以岩石、沙子和许多其他重型材料的形式存在。这些是在货物装载或卸货操作完成时装卸的。这种方法有助于保持船舶的稳定性和适航性。本文的主要思想是实现跟踪船舶形状和稳定性以及压载舱尺寸的复杂分析。