Functional solving process model toward product innovation design based on a functional solving model with multiple elements and evolutions

Abstract

According to the evolution of functional solving models, this paper first compares the characteristics and the consistency of the thinking process of three different functional solving models, including the extended function-environment-behaviour-structure (FEBS/e) model, the extended behaviour-driven function-environment-structure (B-FES/e) model, and the extended function-behaviour-implementation-environment (FBIE/e) model. Then, a new functional solving model with multiple elements and evolutions (FSMEE) is proposed. In this model, the reasoning process of product functional design is classified into 12 basic mapping relations by virtue of the regulation analysis of the design process. The evolutionary logic of basic mapping relations is then developed according to the optimal degree. In addition, the computer representation of the hierarchy design process is established by means of the topology relation matrices and adjacency relation matrices. Finally, an example of an emergency cut-off valve is presented to demonstrate the model's feasibility.

Solution Evolution Knowledge Service Based on Design Iteration in Strain Sensor Design

“…To make the model more consistent with the results of the empirical study, Gero et al proposed a situated FBS model [ 3 ], which extended the original mapping relationship. Based on this model, related researchers have developed the FBS Path model [ 25 ], ESBF model [ 26 ], FSMEE model [ 27 ], FPBS model [ 28 ], RFBS model [ 29 ], etc. For example, Liu et al proposed a function–structure concept network construction and analysis method for a smart product design system in order to advance data-driven design, which combines sentence parsing and word/phrase extraction to integrate functional and structural information [ 30 ].…”

A hierarchical functional solving framework with hybrid mappings for supporting the design process in the conceptual phase

“…That is to say, S!V represents the termination of a design process. 2 As shown in Figure 2, the horizontal direction represents the solving routes and the vertical direction represents their preference. The solving route is marked with a labelled arrow line, for example '3-5-6-11' corresponds to 'F!P!B!S!SF'.…”

“…In accordance with the evolutionary course, the proposed functional solving models of the conceptual design can be divided into three stages: direct functional solving, behaviour-assisted functional solving and functional solving with environmental constraints. 2…”

“…According to the specific requirements of certain fields or objects, adaptations to the above models have been made by researchers. Several improved and expanded models have been developed, such as the Freeman–Newell model, 11 function/means tree model, 12 function–effect–working principle–abstract structure model, 13 functional solving model with multiple elements and evolutions, 2 function to structure/material mapping model, 14 require–function–behaviour–structure model, 15 function–behaviour–physical phenomenon-state model 16 and multi-relational synthesis model. 17…”

“…In accordance with the evolutionary course, the proposed functional solving models of the conceptual design can be divided into three stages: direct functional solving, behaviour-assisted functional solving and functional solving with environmental constraints. 2 At the first stage, the function is reasoned to structure directly with the so-called direct functional solving models. The most prominent two are the systematic design model 3,4 and the axiomatic design model.…”