Product Conceptual Design Research Articles

Agile conceptual design and validation based on multi-source product data and large language models: a review, framework, and outlook

The ability to rapidly and accurately identify high-value requirements and complete the conceptual design and performance validation of iterative products is crucial for companies to achieve swift product upgrades and enhance market competitiveness. This paper provides a comprehensive review of the latest methods and practices reported in the literature, covering various aspects such as requirement mining, scheme generation, and scheme validation in conceptual design. Furthermore, it proposes a framework for agile conceptual design and validation based on multi-source product data and Large Language Models (LLMs). The specific research focus areas include requirement mining using product usage data, AI-based conceptual scheme generation, and rapid conceptual scheme validation facilitated by physics-informed data-driven approaches. Finally, the paper discusses the challenges and future research prospects of agile conceptual design based on multi-source product data and Large Language Models.

A data-driven design parameter recommendation approach based on personalized requirements for product conceptual design

A data-driven design parameter recommendation approach based on personalized requirements for product conceptual design

GPSdesign: Integrating Generative AI with Problem-Solution Co-Evolution Network to Support Product Conceptual Design

In conceptual design, designers often face the challenge of navigating vast design spaces to define ambiguous problems and generate feasible solutions. Recent advancements in generative artificial intelligence (GenAI) offer new opportunities to support this process. However, formative research revealed that designers struggle to simultaneously advance both problem and solution spaces when using GenAI in conceptual design, leading to increased communication load and diminished solution practicality. This study explores the integration of GenAI with the problem-solution co-evolution model to facilitate the construction of a structured design space. We propose a GenAI-supported method for expanding and evaluating the design space and developed the GPSdesign system based on this method. Compared with a baseline system, GPSdesign fosters greater design space divergence, retrospection, and structured construction, while improving design efficiency and solution quality.

Impact of VR sketching on novice designers’ cognitive actions in product conceptual design

ABSTRACT Sketching is a useful method in conceptual design, but traditional sketching only supports the designer's visual representation to a certain extent. This paper evaluated the impact of virtual reality (VR) sketching on the cognitive actions of novice product designers during the conceptual design process. Protocol analysis of retrospective reports was utilized to encode the design actions, comparing the differences in cognitive actions among VR sketching, traditional sketching, and tablet sketching among eight novice product designers. Additionally, this study analyzed the effects of proficiency with VR sketching tools on designers’ cognitive actions and examined the differences between novice and professional designers in their use of VR sketching tools. The results indicated that VR sketching enhanced the designer's spatial perception, facilitated unexpected discoveries and transformed overall thinking style. Furthermore, higher proficiency with VR sketching tools reduced the cognitive load of designers and further enhanced design performance. These findings suggest the significance of VR sketching in the conceptual design process and its potential contribution to the development of VR-based teaching environments in product design education.

Analysis and Creation of the Lingnan Cultural Identity Handbook for Product Design

The primary languages used in this region are Cantonese, Hokkienese, and Hakka Dialec, each with distinct dialects and local vocabulary, reflecting the local lifestyle and culture. This study had three main objectives: 1) To Scope on important characteristic of Lingnan identity, 2) To create Identity of Lingnan to products and 3) To complete the design Handbook and product design. The study involved a sample group consisting of experts in Lingnan cultural identity, product designers, and entrepreneurs, and the overall research population included 400 individuals interested in these products. Based on insights from the Handbook for Designing Cultural Products, the study developed the Lingnan cultural identity Handbook for Product Design (e-book). The study utilized an experimental research design and employed interviews and a satisfaction questionnaire as research instruments. This study synthesized, analyzed, and translated the collected data into Lingnan symbols, then compiled descriptive interpretations. The statistical methods used. The research findings revealed prominent elements of Lingnan cultural identity, including Chen Clan Temple, Wo'er House, Manchuria Window, Dragon Boat, Suixi Lion Dance, and Guangdong Opera. The region's geography and history deeply ingrain these cultural elements, showcasing the adaptability and wisdom of the local population. The product design concept focused on the creative process, emphasizing the development of products that meet market demands while considering utility, beauty, and value for product users. The evaluation of the Handbook indicated a high level of overall satisfaction (x̄=3.53). Among the three forms of cultural products, the first had the highest level of overall satisfaction (x̄=4.06), followed by the second with a high level of overall satisfaction (x̄=3.83), and the last with a high level of overall satisfaction (x̄=3.73).

Computers as co-creative assistants. A comparative study on the use of text-to-image AI models for computer aided conceptual design

Computers as co-creative assistants. A comparative study on the use of text-to-image AI models for computer aided conceptual design

A systematic problem analysis network for product conceptual design

A systematic problem analysis network for product conceptual design

A knowledge graph-aided decision guidance method for product conceptual design

In the fast-paced world of product design, businesses seek a competitive edge by swiftly addressing user requirements and developing precise solutions. Depending on diverse knowledge, conceptual design makes enterprises invest significantly in knowledge management. Following the philosophy of decision-based design, a knowledge graph-aided decision guidance method is proposed to streamline and enhance knowledge utilisation in product conceptual design. Firstly, the decision-making process in product conceptual design is modelled using the Concept-Decision-Knowledge (CDK) model, yielding the meta-model of CDK (mCDK). A data-augmented BERT-BiLSTM-CRF model is adopted to extract information from diverse data sources, forming a CDK knowledge graph (CDK-KG). A decision case for employing problem-solving knowledge configuration is generated to resolve specific design decision problems when new requirements arise. Validation of the method is demonstrated through a case study on the launch vehicle conceptual design of the first and second-stage separation system. The results indicate that the proposed method can automatically extract information from data resources to construct a knowledge graph. Furthermore, it can provide decision cases for design requirements through knowledge configuration, supporting decision-making.

‘Rhetoric’ in the design process: The role of prop-based virtual reality storytelling in user-centred product conceptual design

This paper explores how prop-based virtual reality storytelling (VR&P-ST) can enhance user-centred product conceptual design (UCPCD) by the perspective of ‘computing with things’. The study introduces the concept of ‘rhetoric’ and the framework of ‘epistemic objects’ to explore the value of VR&P-ST. The study provides VR&P-ST experience for designers through VR passive haptics and proposes ten hypotheses. Through data analysis, nine hypotheses were accepted, and one hypothesis was rejected. This study provides a new solution in the field of empathic methods of UCPCD. Additionally, this study verifies that VR&P-ST can improve the fidelity and historical perception of conceptual design objects and neutralize ambiguity as the ‘rhetoric’. These three characteristics make VR&P-ST have a positive impact on the designer’s engagement, which in turn improves the designer’s evaluation and experience of the design process to a certain extent, but it still has limitations.

Detailed Design of Special-Shaped Steel Structures Based on DfMA: The BIM-FEM Model Conversion Method

(1) This paper, based on the characteristics of complex steel structures as well as difficult points in the process of their detailed design, introduces the product design concept of DfMA (Design for Manufacturing and Assembly) from the manufacturing industry and studies the detailed design method of BIM-FEM model conversion. The BIM software Revit (2020) is used as the basis for the BIM detailed design of the project, which achieves the purpose of rapid modeling and provides a detailed design model basis for finite element analysis. (2) Utilizing the Revit API and C# for secondary development as the technical means, this approach involves converting the geometric entity model described by CSG-Brep into an APDL stream. This creates an interface with the finite element analysis software ANSYS (12.0) to implement the detailed design of BIM-FEM model conversion, optimizing the algorithm for converting complex analysis models that require high precision for special-shaped steel structures. (3) This research addresses issues such as the disconnection between the design, manufacturing, and construction of special-shaped steel structures, providing support for design decisions. Moreover, it enhances the detailed design method by improving the standardization of special-shaped components under the condition of design diversity. (4) These studies provide sustainability for engineering design, manufacturing, and construction projects, enabling the maximization of benefits and product lifecycle management (PLM) through these projects. (5) Finally, a case study analysis was conducted on the Wuhan City New Generation Weather Radar Construction Project, designed by the Central South Architectural Design Institute (CSADI), to verify the detailed design of BIM-FEM model conversion. This proved the scientific validity, practicality, and necessity of this research.

B-FMEA-TRIZ model for scheme decision in conceptual product design: A study on upper-limb hemiplegia rehabilitation exoskeleton

B-FMEA-TRIZ model for scheme decision in conceptual product design: A study on upper-limb hemiplegia rehabilitation exoskeleton

A Case Study in Natural Fibre Material (Luffa Sponge) Development Using E2-Material-Driven Design

To unleash the emotional potential of natural fibre materials in sustainable development and utilisation, this paper presents a material-driven design method with emotional and ecological indicators (E2-MDD). The method offers product-level solutions for the sustainable development of natural materials. The method involves several steps, such as screening the main material quality, capturing the user emotion vision, deconstructing the E2 vision pattern, and deducting the product design concept. The method was tested on luffa sponge samples, seen as one kind of traditional fibre resource, which resulted in four differentiated schemes, which were evaluated using the E2-MDD ring radar column score chart. The study identified three key emotional qualities for natural fibre materials: associativity, uniqueness, and biophilicity. The results show that product concepts closer to the natural material’s original form scored higher, while the inclusion of non-natural materials had a negative impact on the evaluations. This study also found that E2-MDD could strengthen the emotional and ecological connection between people and products, further indicating that material and design can establish a link between environmental friendliness and emotional experience. Lastly, the paper suggests future development areas for the E2-MDD method, including focusing on users, ecology, and business.

UPCYCLING FOR REPURPOSING WASTE INTO CREATIVE PRODUCTS

Upcycling is the process of repurposing non-used materials or products to make them more valuable or usable, with increased quality and value. However, truly little research has been conducted on the design process and/or creative ideation of upcycling in order to produce higher-quality and more valuable products. This study presents the four stages of the design process, consisting of selecting the waste products, emerging conceptions, generating ideas, and rendering a series of creative ideas. SCAMPER (substitute, combine, adjust, modify, put to other uses, eliminate, reverse), one of the practical and effective techniques to create various creative ideas, was applied in the stages of emerging conceptions and generating ideas. With the upcycling concept of waste product design utilizing SCAMPER, the results demonstrated that waste soft drink cans could be converted into five creative products: a desk watch, a picture frame, a spring paper clip, a pencil holder, and a lamp. The five products featured the upcycling of waste soft drink cans, removing the need to recycle or send them to landfills at that point in their lifecycle. Consideration was given to the design process’ compatibility with creative concept generation and design. The study indicated that upcycling should be viewed as an essential component of waste management and repurposing in order to provide an intelligent answer to escalating product waste problems.

Research on Product Conceptual Design Scheme Configurations from a Designer–User Conflict Perspective

In the context of rapid product iteration, design conflicts arise from discrepancies in designers’ understanding of user needs, influenced by subjective preferences, behavioural stances, and other factors. This paper proposes a product conceptual design approach based on the design conflict perspective. First, user comments and design documents are collected. Natural language processing (NLP) methods, including cleaning, filtering, lexical segmentation, feature clustering, and sentiment analysis, are employed to identify design themes. The intuitionistic fuzzy sets (IFSs) and term frequency–inverse document frequency (TF-IDF) algorithms are then utilized to obtain evaluation matrices for the products from both users and designers. Subsequently, design conflicts between users and designers are calculated, and an optimal configuration for product conceptual design is determined through regression analysis and planning methods. Finally, the proposed method is validated using a mobile phone as a product example, and suggestions for product improvement are presented. The results indicate that considering design conflicts as a factor in product design and synthesizing designer and user product concepts enhance the accuracy and reliability of product conceptual design generation. The findings of this study offer new insights into the conceptual design configuration for product iteration.

Topology-Accelerated and Selective Cascade Depolymerization of Architecturally Complex Polyesters.

Despite considerable recent advances already made in developing chemically circular polymers (CPs), the current framework predominantly focuses on CPs with linear-chain structures of different monomer types. As polymer properties are determined by not only composition but also topology, manipulating the topology of the single-monomer-based CP systems from linear-chain structures to architecturally complex polymers could potentially modulate the resulting polymer properties without changing the chemical composition, thereby advancing the concept of monomaterial product design. To that end, here, we introduce a chemically circular hyperbranched polyester (HBPE), synthesized by a mixed chain-growth and step-growth polymerization of a rationally designed bicyclic lactone with a pendent hydroxyl group (BiLOH). This HBPE exhibits full chemical recyclability despite its architectural complexity, showing quantitative selectivity for regeneration of BiLOH, via a unique cascade depolymerization mechanism. Moreover, distinct differences in materials properties and performance arising from topological variations between HBPE, hb-PBiLOH, and its linear analogue, l-PBiLOH, have been revealed where generally the branched structure led to more favorable interchain interactions, and topology-amplified optical activity has also been observed for chiral (1S, 4S, 5S)-hb-PBiLOH. More intriguingly, depolymerization of l-PBiLOH proceeds through an unexpected, initial topological transformation to the HBPE polymer, followed by the faster cascade depolymerization pathway adopted by hb-PBiLOH. Overall, these results demonstrate that CP design can go beyond typical linear polymers, and rationally redesigned, architecturally complex polymers for their unique properties may synergistically impart advantages in topology-augmented depolymerization acceleration and selectivity for exclusive monomer regeneration.

A patent text-based product conceptual design decision-making approach considering the fusion of incomplete evaluation semantic and scheme beliefs

A patent text-based product conceptual design decision-making approach considering the fusion of incomplete evaluation semantic and scheme beliefs

Arts and Crafts Management Model of Baan Huai Ta Community, Utttaradit Province

Purpose: The objectives of the present research on the arts and crafts management model of Baan Huai Ta community, Uttaradit province were to analyze the community arts and crafts management model; develop the community arts and crafts management model; and evaluate the community arts and crafts management model of Baan Huai Ta, Uttaradit Province. Theoretical Framework: This study employs the concept of local wisdom and product development and design. Design/Methodology/Approach: The procedures involved building a network, acquiring knowledge, developing a community arts and crafts management model, developing community arts and crafts, evaluating the community arts and crafts management model. A qualitative research was employed consisting of observation, in-depth interviews, focus group discussion, and participatory action. Findings: The analysis of community arts and crafts management model suggested the area-based potential of Baan Huai Ta with arts and crafts abilities including weaving, wickerwork, and wood carving. Her Majesty Queen Sirikit had graciously supported people in the community to receive career development trainings in arts and crafts intended to offer extra jobs for generating more income. Their products were delivered for distribution to the Bureau of the Royal Household and the Arts and Crafts Promotion Foundation. Research Practical and Social Implication: Evaluation results of community arts and crafts works were as follow: increased value at a highest level; design concept at a highest level; selection of raw materials at a highest level; production process at a highest level; quality and beauty at a highest level; increased value added at a very high level; creating identity at a very high level; and generating value added at a very high level. The arts and crafts management model of Baan Huai Ta community, Uttaradit province comprised 4 components namely: analysis of community context; analysis of community management//network building; development of arts and crafts; and evaluation of arts and crafts management model. Originality/Value: The development of community arts and crafts management models focused on the designs with applied local wisdom to provide community products. The design concept is based on the link of science and knowledge in coordination with applied local materials to develop community products with an aim to bring about value added, self-reliance, as well as group forming. This had led to the development of products consisting of 12 pieces of fabric art and craft products, 2 pieces of carving art and craft products, and 8 pieces of wickerwork arts and crafts products, totaling 22 products.

Development of a novel machine learning-based approach for brain function assessment and integrated software solution

Development of a novel machine learning-based approach for brain function assessment and integrated software solution

A constraint-driven conceptual design approach for product based on function-behavior-structure design process

A constraint-driven conceptual design approach for product based on function-behavior-structure design process

QFD-based hybrid neutrosophic MCDM approach with Six Sigma evaluation for sustainable product design in Industry 4.0

PurposeThe concept of sustainable product design (SPD) is gaining significant attention in recent research. However, due to inherent uncertainties associated with new product development and incorporation of multiple qualitative and quantitative criteria; SPD is a complex and challenging task. The purpose of this paper is to introduce a novel approach by integrating quality function deployment (QFD), multi-criteria decision making (MCDM) technique and Six Sigma evaluation for facilitating SPD in the context of Industry 4.0.Design/methodology/approachThe customer requirements are evaluated through the neutrosophic-decision-making trial and evaluation laboratory-analytic network process (DEMATEL-ANP)-based approach followed by utilizing QFD matrix to estimate the weights of the engineering characteristics (EC). The Six Sigma method is then employed to evaluate the alternatives’ design based on the ECs’ values.FindingsThe effectiveness of the suggested approach is illustrated through an example. The result indicates that utilization of the neutrosophic MCDM technique with integration of Six Sigma methodology provides a simple, effective and computationally inexpensive method for SPD.Practical implicationsThe proposed approach is helpful in upstream evaluation of the product design with limited experimental/numerical data, maintaining a strong competitive position in the market and enhancing customer satisfaction.Originality/valueThis work provides a novel approach to objectively quantify performance of SPD under the paradigm of Industry 4.0 using the integration of QFD-based hybrid MCDM with Six Sigma method.