Each self-respecting scholar can easily deal with a dozen or two scanwords. But even pros sometimes come up with questions that are difficult to answer. In such situations, even the famous “mathematical” method of selecting letters does not always help. And probably not one of you has come across issues that affect the term "frame". These are quite difficult tasks, and in order to answer them, you will have to plunge into the history of shipbuilding.
What is a frame?
The term "frame" came into Russian from the Netherlands and literally means "wooden rib." In reality, it is a transverse component of the power set of the ship’s hull, where it acts as a stiffener.
With the development of mechanical engineering, the term began to be applied in the field of aircraft engineering, where it denotes a stiffener for the fuselage of an aircraft. As it has already become clear, the main role that the frame plays is to give the vessel the necessary rigidity, whether it be air or sea.
Also, this element of the power set is used to fasten the longitudinal components, which is necessary for sheathing the body. It will be useful for erudite people to know that the distance between adjacent frames is called spacing.
Frame Types
There are two large groups into which engineers divide all frames: wooden and metal. Each type has a branched classification. So, wooden cross bars are divided into:
- Bent, which consist of solid wood. For their manufacture, trunks with natural curvature are used.
- Futoksovye, which are assembled from several components. This type of wooden crossbar is most widely used.
In two parts, the futox frame consists of: flortimers and directly futox. Flortimbers is the part that is attached to the keel of the ship - a longitudinal beam passing through the entire length of the vessel. Futoxes are attached to it on both sides.
Metal products are divided into more classes. But most often, frames are distinguished by the functions performed:
- frame, the task of which is to increase the strength of the ship and the connection of longitudinal load-bearing elements;
- the main ones, which make up the largest part of the total number of transverse bars, are used for sheathing the vessel.
The number of transverse power bars depends on the displacement of the ship, its draft. Thus, the frame is not just the supporting element of the vessel, which gives rigidity to the hull. It also gives the ship a certain stability in the water.
Special type
In shipbuilding, the midship frame holds a special place, despite the fact that it is structurally no different from other types of transverse power bars. This term is used during calculations, because it is located strictly in the middle of the perpendicular crossing the ship along.
Based on the location of the mid-frame, the drag of the ship during movement is calculated, as well as the hull fullness coefficient, which characterizes the load-carrying capacity and speed of the ship. It will help to understand what a midship frame is, a photo.
“They are closely related”
One of the main elements of a hull kit is a stringer, which performs several functions:
- It perceives stress from the total bending moment in the longitudinal direction.
- Redistributes the load between adjacent transverse power bars.
- It is an intermediate support for frames.
In addition, stringers are the main elements involved in the casing or fuselage of an aircraft. Scanwords often come up with questions about him, but now you know that stringers are a support for frames.