2.3.2.2 Determination of Concept Design (Conceptual Design)

As discussed in the design of this concept includes, creation of functional structures, the search for solutions and the combination principle, the selection of appropriate combinations, creating variants of the concept, as well as evaluation.

2.3.2.2.1 Determining the function and structure (Determine Their Functions and Structures)

2.3.2.2.1.1 Structure of Entire Functions (Overalle Function)

After the main problems are known, then made the overall function of the structure. The structure of this function is depicted with a block diagram showing the relationship of inputs and outputs. Input and output of energy flow, material or signal.

2.3.2.2.1.2 Sub Function

If the overall function is quite complicated, it is a way to anticipate it divides into several sub-functions as in Figure 2.4 below.

This division will provide benefits:

- Provide the possibility to conduct further search solutions.

- Provide several possible solutions to see the combination of sub-function solutions.

At the time of manufacture of the structure functions, should be distinguished between pure design (original design) with the redesign (adaptive design).
On the basis of pure design of the structure and function is a specification of the main problems, are starting to redesign the design of the structure function was then analyzed.
This analysis will provide the possibility for the development of various solutions in order to obtain new solutions.

In this step be taken:
- Define the functions
At first, the overall function, then if necessary function of the (sub-functions). This function is then organized into functional structures, which are the basis for seeking a solution principle.
The results obtained are working:
One or several functions Structure / Function structure.
Structure functions are usually pictures or simple diagrams.

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