What does the term "frames" refer to in a ship's structure?

The term "frames" in the context of a ship's structure refers to the internal ribs that provide essential structural support to the vessel. These frames are critical components that give shape to the hull and help to maintain its integrity under various stresses encountered while sailing. They are typically made from steel or other strong materials and span the length of the ship, firmly attached to the keel at the bottom and to the decks at the top. This framework is vital for the overall strength and stability of the ship, enabling it to withstand forces such as waves, wind, and cargo loads during operation. Understanding the function of frames is crucial for assessing a ship's structural design and overall seaworthiness.