Emotional Engineering, Vol.5 by Shuichi Fukuda

Author:Shuichi Fukuda
Language: eng
Format: epub
Publisher: Springer International Publishing, Cham

2/Exploration (Fig. 8.1 stage 2)—This stage consists in randomly and systematically associating an example of one wheel to an example of the other wheel. In other terms, designers conduct forced associations of AM examples with OD examples in order to generate ideas. At least one idea should be formulated for each association. For example (Fig. 8.2 stage 2), blade’s features are associated to colored ink and steel ball features to generate the idea of a blade that integrates a colored ink in its internal channel and a steel ball at the end of it in order to leave a trace when it’s rolling. As being similar to a cartridge, the idea is called “the cartridge blade”. The idea is represented by modifying the input simple 3D model. The output of this stage is a case-base of various and numerous ideas that present potential opportunities for collaborative R&D.

3/Ideas evaluation (Fig. 8.1 stage 3)—A first idea evaluation is conducted by AM experts. The generated ideas are faced to AM processes in order to scale the ideas at a mature level i.e. they are feasible with current AM processes or an emergent level i.e. potentially feasible if AM processes improve. Some associations could be evaluated as impossible due to major technical limit or technical risk. The association would be then eliminated. The proof of the ideas feasibility is established by actually additively manufacture them as shown in Fig. 8.2 stage 3. This stage leads to a reduced portfolio of ideas embodied in artifacts.

4/Concept generation (Fig. 8.1 stage 4)—The artifacts and their manipulation stimulates analogical reasoning to translate the previous ideas into concepts which show application scenarios. As shown in our example (Fig. 8.2 stage 4), the scenario of a “cartridge blade” used to help operators in adjusting rotative blades has been formulated. The blades should leave a constant and uniform trace on the support if they are well aligned. This stage is conducted by designers in a co-design approach with industrial stakeholders to enhance the formulation of concepts with a high client value. This stage output is a base of concepts sheets describing potential products to be developed for industrial sectors.

5/Concept evaluation (Fig. 8.1 stage 5)—The purpose is to identify the concepts to be further detailed and optimized in downstream DFAM stages. The required profiles for the evaluation are experts of AM who have a good understanding of industrial sectors where AM is integrated, such as innovation managers, senior designers and trade engineers for example. They are asked to say how much the generated concepts are: 1/Original (in the sense of new) regarding traditional products of the involved industrial sector and regarding AM industry, 2/Useful regarding the involved industrial sector (client value), 3/Realistic regarding AM capacities. Following our example, the “cartridge blade” is considered new since it integrates new functions and forms, and since the associated features have not been already realized in AM industry (see Table 8.2).Table 8.2Evaluation of criteria Originality for the concept example “Cartridge blade”

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