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The mechatronic module to be constructed is defined as part of a certain
mechatronic subsystem, which in turn is part of a larger mechatronic system.
Such a division can be considered quite typical, since the level of sophistication
of modern mechatronic systems makes it necessary to break them into smaller
subsystems when designing. In this case, the design is divided into two stages –
external and internal.
The main content of the first stage of designing is the formulation of the
problem, the definition of «inputs» and «outputs», as well as the essential links
of this mechatronic module with other parts of the mechatronic system and with
the external environment. The content of the second stage is the development
of a schematic diagram, the identification of the most important technical
characteristics of the module, resulting from its design and purpose, and then a
detailed design study.
Designed mechatronic module should be sufficiently rational. Criteria for
the rationality of the construction will be those signs (estimates), from which
one can judge the rationality of the created mechatronic module in the course
of construction. Such criteria include technological design, minimization of
mass, minimization of dimensions (volume), reliability, economy, etc.
The choice of criteria for constructive rationality depends on the set of inter-
related variables and, in particular, on the technical assignment data.
4.5.1 Technical task
When obtaining a technical assignment for the design of a new mechatronic
module, the designer first of all seeks in the task of possibly more complete and
rigorous formulation of the ultimate goal that is put before him. If the designed
mechatronic module is part of a more general mechatronic system, then the
final goal that the designer is assigned to in the task should be formulated on
the basis of knowledge of the place and role of the module in the system. In this
case, the purpose of the mechatronic module is determined by the purpose of
the mechatronic system.
The need for a critical approach to goal formulation is one of the features of
engineering, in particular, design tasks.
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