What is an aggregate?

Suppose, choosing yourself a multivariate, you read in the description of the product that such a model is a fairly complex technological unit. What is an aggregate?

In Latin, aggregatus means"assembled, connected". Most often the term "aggregate" is used in the technical sphere. Here, it denotes either a complex machine node, consisting of a large number of individual elements, or a set of machines combined into a single technological chain.

In mineralogy, for example, an aggregate is calledfusion of minerals, in the economy - the final outcome of individual economic operations, in the theory of information processes - a mathematical model with a high degree of generalization.

Unit as a machine unit

The technical unit of the machine is designedperform one specific function. Examples of aggregates - engine, fuel pump, etc. Aggregates are always interchangeable. That is, you can remove one machine from the machine and put in its place a similar one, while all the remaining nodes of the machine can remain old, and it will again work again.

The aggregate as a collection of machines

Here, as an example, we can consider the workpipe-rolling unit. The tube rolling unit is a system of rolling mills, one of which heats up metal billet blanks, the others are pierced (they make round longitudinal holes in them), the third is rolled out, calibrated, corrected, and cut off the ends. And the output is a finished pipe.

There are also machine-tractor units. We advise you to read the article What is a tractor.