Page 22 - Stanochny park

PROFESSIONAL ADVICE
Aggregate-modular principle as the most

progressive method of designing of equipment

and mechanical engineering products

One of the most important areas of technical progress in shipbuilding Part 2
is the application of the modular principle in the design and construction
of ships. The application of this principle in assembly production led to
the emergence of a new method of assembly of ship mechanisms and
equipment, called the modular-assembly method (MAM).
This method provides for the use of assembly and assembly units of various levels of
complexity for assemblies, units, assembly and zonal blocks and modules during the installation
of ship machinery and equipment.
The traditional method of installation, which until recently was widely used, provided for
the implementation of the full scope of installation work in ship premises such as the shipyard,
the premises of auxiliary mechanisms, pumping rooms and other premises saturated with
equipment. Installation in such cramped rooms was difficult due to the increased noise and gas
pollution caused by the simultaneous gas cutting, felling, welding and other works. The labor
productivity of installers in such conditions is
low.
The aggregate-modular method allows
transferring from the saturated ship premises
to the shop up to 60% of the volume of
installation work during the assembly of the
assembly units. Performing these works in
the shop makes it possible to use progressive
technological processes.
In contrast to the individual method of
installation of ship equipment, in which the
sequential execution of work in full on the ship
increases the duration of construction, when
aggregating in parallel with the hull construction
work in the shop, assembly units is assembled,
Fig. 1. Modular architecture of modern large submarines during which about half of the volume of
(nuclear submarines)
installation work is performed. An assembly unit
is the smallest assembly units, consisting of several parts or products of one structural group,
united according to a functional territorial basis. It is intended for installation in a ship's room or
in higher order assembly units. A unit is an assembly unit, consisting of mechanisms, equipment,
pipelines and other technical means, functionally connected to a system or installation (or an
independent part of it) and assembled on a common supporting structure to perform certain
functions on the ship. To organize a specialized production of assembly units, it is necessary
to unify them with the development of standardized series, unified assembly units, i.e. create
modules of mechanisms and equipment.
Currently, work is underway to unify a wide range of assembly units, mainly based on
reusable units. However, in the future, after typing the engine room, it is possible to create
unified mounting and zonal blocks.
The performance of the above works significantly changes the conditions and methods of
design, the technology of assembly and installation of assembly unit.
Recently, in our defense industry, there has been an active transition to the creation
of new equipment by designing common platforms. So far, it has been said about only one
armored vehicles of this class, but theoretically, the modular design can be applied to almost
any type of equipment. In the case of warships, the modular structure will facilitate refitting
and rearmament. If necessary, it will be possible to replace old missile launchers or electronic
equipment with new and modern ones. With the current approach to the construction of ships,
such work requires serious interventions in the design of ships and, as a result, it takes a lot
of time and effort to re-equip. The modular architecture, in turn, allows relatively small forces
to dismantle old equipment and install new ones. First, modularity can affect power plants,

22 Stanochniy park