An extended case-based reasoning method and corresponding product design process

2019 ◽  
Vol 233 (19-20) ◽  
pp. 6673-6688
Author(s):  
Song Li ◽  
Yan Li ◽  
Wenqiang Li ◽  
Chen Chen
Keyword(s):  
Product Design ◽  
Conceptual Design ◽  
Design Process ◽  
Design Solution ◽  
Case Based Reasoning ◽  
Creative Design ◽  
Knowledge Model ◽  
Product Design Process ◽  
Design Ideas ◽  
Case Based

During product design process, conventional case-based reasoning (CBR) has shown significant applications in coping with new problems by recalling and reusing solutions in old context. However, conventional CBR still lacks effective methods to assist designers in generating creative design solutions of identified problems during modification stage. To make up for this deficiency, an extended CBR (ECBR) method characterized by two retrieval stages is proposed in this paper. The former retrieval stage is aimed to retrieve the most similar source case for design reusing, and the latter one is designed to assist designers in searching for relevant function units to generate creative design ideas for final design solution. A five-tuple knowledge model of product case is presented. It includes both specific design information for design reusing and abstract function units for generating creative design ideas. To effectively organize these case information, a hierarchy knowledge model of case base is established. It consists of case type layer, product case layer, and function unit layer. A corresponding retrieval strategy is presented to deal with different retrieval goals. To improve the performance of ECBR method in modification stage, the substance-attribute-function-cause analysis model and TRIZ tools are integrated together to aid problem analysis and problem-solving of retrieved product case. Finally, a new product conceptual design process is proposed based on ECBR method and the conceptual design of a smokeless barbecue equipment is employed as an example to verify the feasibility and effectiveness of ECBR method.

scholarly journals Knowledge Model Based on Graphical Semantic Perception

2015 ◽  
Vol 15 (6) ◽  
pp. 16-28
Author(s):  
Liu Jian ◽  
Huang Haisong ◽  
Pan Weijie
Keyword(s):  
Knowledge Representation ◽  
Product Design ◽  
Design Process ◽  
Element Model ◽  
Basic Element ◽  
Knowledge Model ◽  
Growth Convergence ◽  
Appearance Design ◽  
Product Design Process ◽  
Origin Point

Abstract Based on knowledge representation in product design, we propose a knowledge model of the product design process based on graphical semantic perception. The ontology semantic of the product is analyzed together with the product design process knowledge. Then the basic element model for knowledge representation of the product design process is built. With the concepts of the extension origin point basic element and extension vector thus defined, knowledge representation, consisting of growth, convergence and optimization is realized. On this basis, the model for case base clustering based on graphical semantics is built. Feasibility verification is performed with the case of appearance design of a machine tool. The highlight of the proposed method lies in the combination of the formalized and quantitative approach for product appearance design.

The Research on Modeling of Design of Product

2011 ◽  
Vol 121-126 ◽  
pp. 1196-1199
Author(s):  
Yu Xian Zhang ◽  
Xiao Shuang Men ◽  
Fang Yao
Keyword(s):  
Life Cycle ◽  
Product Design ◽  
Conceptual Design ◽  
Design Process ◽  
Computer Support ◽  
Product Design Process ◽  
Mapping Models

Product design is a complicated thinking activity of creation of human. Based on analyzing product design and its process, using a theory and method of aggregating and mapping, models of product design, process of product design, process of conceptual design of product were constructed, a frame of network arithmetic of a process of conceptual design of product was presented, its flow of decomposition and integration was particularly defined, a good base for modeling and ruling of process of product design was founded. At the same time, a useful exploration of development of a computer support implement for process of product design at all life cycle was made.

Key Elemental Function Identification Based on Function-Failure Knowledge

2011 ◽  
Vol 58-60 ◽  
pp. 1435-1441
Author(s):  
Mei Qing Wang ◽  
Bin Wang
Keyword(s):  
Product Design ◽  
Failure Mode ◽  
Design Process ◽  
Failure Modes ◽  
Risk Information ◽  
Functional Modeling ◽  
Knowledge Model ◽  
Failure Risk ◽  
Product Design Process

Functional modeling is the key step in product design process. To improve the quality of functional modeling, an identification method of key elemental function based on function-failure knowledge was proposed. A function-failure knowledge model for mechanical product was built, which consists of function-failure mode, relationships among failure modes, and failure risk information. By means of the function-failure repository, the approach to calculate risk number (RN) of the elemental function was presented, in which the relationships among failure modes were considered. Then the key elemental functions were identified by the RN value. Finally, a case was studied to illustrate the proposed method.

CADSYN: A case-based design process model

1993 ◽  
Vol 7 (2) ◽  
pp. 97-110 ◽  
Author(s):  
Mary Lou Maher ◽  
Dong Mei Zhang
Keyword(s):  
Design Process ◽  
Design Problem ◽  
Domain Knowledge ◽  
Process Model ◽  
Design Solution ◽  
Case Based Reasoning ◽  
Specific Design ◽  
Starting Point ◽  
Design Process Model ◽  
Case Based

In solving a new design problem, the case-based reasoning paradigm provides a process model where previous experience in the form of multiple, individual design situations can be used in a new design context. Design synthesis presents challenges to current methodologies of CBR in the application of the various approaches to case memory organization, indexing, selection and transformation. The focus of this paper is on the transformation process. Multiple types of design knowledge are essential to derive a new design solution. A hybrid case-based design process model, CADSYN, is proposed to integrate specific design situations and generalized domain knowledge, where specific cases are represented as attribute-value pairs and domain knowledge is represented by generalized design concepts and constraints. Case transformation is treated as a constraint satisfaction problem, where a specific design case provides a starting point for a new design problem and constraints are used to revise the case for consistency with the new context.

Study on Modeling of Growth Conceptual Design

2010 ◽  
Vol 44-47 ◽  
pp. 1883-1888
Author(s):  
Pei Gang Li ◽  
Xian Ying Feng ◽  
Ya Qing Song
Keyword(s):  
Conceptual Design ◽  
Design Stage ◽  
Case Based Reasoning ◽  
Product Knowledge ◽  
Knowledge Model ◽  
Biological Growth ◽  
Mechanical Products ◽  
Mapping Process ◽  
Generalized Coordinate ◽  
Case Based

Based on decomposition and reconstruction principle, by analyzing the limit essence of rigid body in generalized coordinate system, the paper proposes growth conceptual design model from function to structure. It applies the mechanism of biological growth into conceptual design of products, realizes the stable mapping from function to structure, and also solves the issues of multi-solutions, uncertainty, etc, existing in the mapping process from function to structure of mechanical products in conceptual design stage. Establish the product knowledge model supporting product conceptual design, use the Case-Based reasoning (CBR) technology into entities match and verify it by case, which provides a new idea for the conceptual design of computer aided product.

Creative patterns and stimulation in conceptual design

2010 ◽  
Vol 24 (2) ◽  
pp. 191-209 ◽  
Author(s):  
Yan Jin ◽  
Oren Benami
Keyword(s):  
Conceptual Design ◽  
Design Process ◽  
Cognitive Processes ◽  
Creative Process ◽  
Protocol Analysis ◽  
Cognitive Model ◽  
Creative Design ◽  
New Ideas ◽  
Support Methods ◽  
Design Ideas

AbstractConceptual design is a creative process. Designers create functions to satisfy customer needs and behaviors and forms to fulfill their functions. Although cognitive processes are at the center in developing new ideas, they are rarely taken into account in research and development of design support methods and systems. It is conceivable that if one understands how cognitive processes are stimulated to generate design ideas, then more effective methods and tools can be developed to support conceptual design. In this article, a cognitive model of conceptual design is developed to capture the relationships among design entities, design operations, and cognitive processes. A protocol analysis is performed to evaluate the model, and a cognitive experiment carried out to study the creative patterns and stimulating relationships. The results show that designers exhibit patterns of creative design behavior, and that these patterns can be captured and instilled into the design process to promote creativity.

scholarly journals Triple-Helix Structured Model Based on Problem-Knowledge-Solution Co-evolution for Innovative Product Design Process

2020 ◽  
Vol 33 (1) ◽  
Author(s):  
Qian Hui ◽  
Yan Li ◽  
Ye Tao ◽  
Hongwei Liu
Keyword(s):  
Product Design ◽  
Design Process ◽  
Design Problem ◽  
Triple Helix ◽  
Problem Solution ◽  
Innovative Product ◽  
Innovative Design ◽  
Structured Model ◽  
Knowledge Spaces ◽  
Product Design Process

AbstractA design problem with deficient information is generally described as wicked or ill-defined. The information insufficiency leaves designers with loose settings, free environments, and a lack of strict boundaries, which provides them with more opportunities to facilitate innovation. Therefore, to capture the opportunity behind the uncertainty of a design problem, this study models an innovative design as a composite solving process, where the problem is clarified and resolved from fuzziness to satisfying solutions by interplay among design problems, knowledge, and solutions. Additionally, a triple-helix structured model for the innovative product design process is proposed based on the co-evolution of the problem, solution, and knowledge spaces, to provide designers with a distinct design strategy and method for innovative design. The three spaces interact and co-evolve through iterative mappings, including problem structuring, knowledge expansion, and solution generation. The mappings carry the information processing and decision-making activities of the design, and create the path to satisfying solutions. Finally, a case study of a reactor coolant flow distribution device is presented to demonstrate the practicability of this model and the method for innovative product design.

Process Control Method of Complex Product Multidisciplinary Collaborative Design System

2013 ◽  
Vol 712-715 ◽  
pp. 2888-2893
Author(s):  
Hai Qiang Liu ◽  
Ming Lv
Keyword(s):  
Information Sharing ◽  
Product Design ◽  
Design Process ◽  
Collaborative Design ◽  
Control Method ◽  
Integrated System ◽  
Design System ◽  
System Control ◽  
Complex Product ◽  
Product Design Process

In order to realize information sharing and interchange of complex product multidisciplinary collaborative design (MCD) design process and resources. The Process integrated system control of product multidisciplinary collaborative design was analyzed firstly in this paper, then design process of complex product for supporting multidisciplinary collaborative was introduced, a detailed description is given of the organization structure and modeling process of MCD-oriented Integration of Product Design Meta-model ; and concrete implement process of process integrated system control method was introduced to effectively realize information sharing and interchange between product design process and resources.

Study on a Knowledge-Reuse-Based Rapid Product Design Process

2008 ◽  
Vol 392-394 ◽  
pp. 543-550 ◽  
Author(s):  
Hun Guo ◽  
Guo Xing Tang ◽  
Dun Wen Zuo ◽  
T.J. Liu ◽  
W.D. Jin
Keyword(s):  
Product Design ◽  
Design Process ◽  
Iterative Process ◽  
Process Model ◽  
Design Reuse ◽  
Knowledge Reuse ◽  
Construction Machinery ◽  
Current Design ◽  
Product Design Process ◽  
Three Factor

Design reuse is the application of past designs knowledge and successful experience to current design process and it is a significant method for rapid design. A knowledge-reuse-based rapid product design model is proposed and a three-factor product design iterative process model is studied. Finally, it is applied successfully in the rapid product design of construction machinery combining with the requirement of the construct machinery product design.

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