Tool For Product Design Research Articles

An efficient product design tool for aftertreatment system

A numerical simulation technique based on the conservation of mass and energy in the gas phase has been developed to optimize the aftertreatment system with the lowest costs. Both oxygen storage capacity model and catalyst deterioration model have been integrated into the three-way catalyst performance model. Applications have been discussed, including XY-L 1.5L I3 gasoline turbocharged direct injection (GTDI) production hybrid vehicle, BY-L 1.5L I4 GTDI hybrid vehicle, XY-L (overseas version) 1.5L I4 GTDI hybrid vehicle, and G-L7 1.5L I4 GTDI hybrid vehicle. Vehicle tests in support of the proposed model have been described. The developed model covers the complete range of the cold start, high temperature and volume flow conditions. To optimize a three-way catalyst performance, this work simulated the effect of air fuel ratio, space velocity, temperature, biasing adjustment on the catalyst efficiency. The simulations presented the technique’s capability of well predicting emissions on fresh and full useful life aged aftertreatment systems, respectively, and carried out under transient conditions. The investigation indicated that excess fueling was used upon engine start to heat the catalyst up to its full operating temperature of greater than 350°C. The model results prompted a redesign of the I3 and I4 1.5L GTDI China 6b, Euro VId and Tier 3/SULEV30 exhaust systems over the world light vehicle test procedure (WLTP) and federal test procedure (FTP) cycles, respectively, for example, the model suggested that the latest design for the SULEV30 aftertreatment system on XY-L (overseas version) 1.5L I4 GTDI hybrid vehicle with the revised calibrations in the areas of cold-start and closed-loop fuel treated emissions of NMOG, NOx, and CO to the 70% of the SULEV30 standards with a $64 cost reduction relative to the baseline.

Developing a circular design framework: Co‐creation and validation of a circular product and service design tool

AbstractSustainable products are at the core of the circular economy, which is gaining momentum in scientific, economic, and policy fields. However, existing research in the field of circular product design remains fragmented. The literature has generally tended to focus on material or resource efficiency, while other complex issues related to product ecosystem also exist, such as the needs of the ecosystem (non‐human) and human user, circular challenge, and circular business model. By using a co‐creation approach, this study aims to create and validate a circular product design framework (CD‐Framework) and a self‐assessment tool for circular product design (CD‐Tool) that facilitates an understanding of how product circularity can be improved from the product ideation. The proposed CD‐Framework consists of 10 interconnected categories: circular challenge; circular business model; production; digital fabrication technologies; materials; branding and communication for circularity; packaging, distribution and logistics; user; usage; and after usage. The CD‐Tool was designed as a tool to aid product developers from various industry sectors in the self‐assessment of the circularity of product design. We contribute to developing tools that accelerate integration of circularity into product design through product‐level and ecosystem‐level considerations.

S-FMECA: A Novel Tool for Sustainable Product Design - Additive Manufacturing

The choices made in the early design stage (EDS) will largely define the environmental impacts of a product. The purpose of this paper is to develop an eco-design method used for assessing semi-quantitatively the sustainability of an additively manufactured product since the EDS. This article presents a semi-quantitative method to support EDS-conscious environmental decisions. A novel Sustainable-Failure Mode, Effect, and Criticality Analysis (S-FMECA) tool is developed to support designers in the conceptual design phase, to guide the choices, and to provide a valuable evaluation of the future additively manufactured product. Through the integration of the environmental aspects in FMECA analysis, systematic prevention of errors, and enhancement of sustainability since the EDS would be the main advantage of this tool.

Interact: A visual what-if analysis tool for virtual product design

Virtual prototyping is increasingly used by businesses to streamline operations, cut costs, and enhance daily operations. This often includes a variety of modeling techniques among which, complex, black-box models. The path from model development to utilization in applied contexts is yet long. Domain experts need to be convinced of the validity of the models and to trust their predictions. To be used in the field, model capabilities need to be affordable, that is, allow rapid and interactive scenario building, even for non-experts. Complex relations governed by statistical interactions must be unveiled for users to understand unexpected predictions. We propose Interact, a model-agnostic, visual what-if tool for regression problems, supporting (1) the visualization of statistical interactions between features, (2) the creation of interactive what-if scenarios using predictive models, (3) the evaluation of model quality and building trust, and (4) the externalization of knowledge through model explainability. While the approach applies in various industrial contexts, we validate the application purpose and design with a detailed case study and a qualitative user study with engineers in the tire industry. By unraveling statistical interactions between features, the INTERACT tool proves to be useful to increase the transparency of black-box machine learning models. We also reflect on lessons learned concerning the development of visual what-if tools for virtual product development and beyond.

Integrated Sustainable Product Design With Warranty and End-of-Use Considerations

Abstract The concept of integrated sustainable product design has recently emerged, aiming to incorporate downstream life cycle performance into the initial product design to enhance sustainability. Various sustainable product design tools based on life cycle assessment or quality function deployment have been established while the impact of reliability on circular practices has received limited attention. Recognizing the critical role of product reliability in post-design performance, this paper develops a product design optimization model that considers the warranty performance and the effect of end-of-use options. The model takes into account the effect of uncertain operating conditions on product reliability. Two optimization goals including the minimization of expected unit life cycle cost and environmental impact are achieved by the model. To demonstrate the benefits of the integrated approach, the model is applied to an electric motor design problem. The results highlight that integrating end-of-use options in the early design phase leads to adjustments in component selection and reliability design. Moreover, the circular utilization of used products enables cost savings throughout the product’s life cycle and contributes to environmental impact reduction. Lastly, the study analyzes the effects of operating conditions, warranty policies, and take-back prices for used products on design decisions, providing valuable insights for product designers.

REDESIGN ECO-FRIENDLY YOGURT PACKAGING USING KANSEI ENGINEERING METHOD

This research is focused on the desire of companies to change their yogurt packaging from thin plastic pouches to stronger ones. The purpose of packaging redesign is not only to overcome the problem of packaging durability but also to make new packaging more attractive to consumers so that the selling value is higher. Thus, packaging that is technically feasible and represents the customer's preferences for the company's products is needed. In addition, companies must also consider the long-term environmental impact. Redesigning the packaging using the eco-design concept and the Kansei Engineering Method. Eco-design is used to determine the environmental impact of packaging, while Kansei Engineering is used as a product design tool. The eco-design assessment of the suggested packaging shows that the packaging is more environmentally friendly than the current packaging. Kansei Engineering's findings include cylinder-shaped yogurt packaging made from aseptic cardboard and full color with a packaging design that is fresh, cheap, beautiful, strong, environmentally friendly, ergonomic, complete with product information, a halal logo, and unique

A review on tolerance analysis approaches in mechanical assemblies

The Tolerance analysis is necessary for any mechanical product since it affects the precision and functional performance of the mechanical system during assembly. Tolerance operations during product design development are aided by the integration of tolerance in CAD. Real CAD models are created with geometrical and dimensional tolerances in mind, giving them a greater resemblance to real mechanical assemblies. The focus of this research is on tolerance analysis approaches in product design and optimization tools used on various models.

OPTIMISED MODELS FOR AR/VR BY USING GEOMETRIC COMPLEXITY METRICS TO CONTROL TESSELLATION

AbstractAR/VR applications are a valuable tool in product design and lifecycle. But the integration of AR/VR is not seamless, as CAD models need to be prepared for the AR/VR applications. One necessary data transformation is the tessellation of the analytically described geometry. To ensure the usability, visual quality and evaluability of the AR/VR application, time consuming optimisation is needed depending on the product complexity and the performance of the target device.Widespread approaches to this problem are based on iterative mesh decimation. This approach ignores the varying importance of geometries and the required visual quality in engineering applications. Our predictive approach is an alternative that enables optimisation without iterative process steps on the tessellated geometry.The contribution presents an approach that uses surface-based prediction and enables predictions of the perceived visual quality of the geometries. This contains the investigation of different geometric complexity metrics gathered from literature as basis for prediction models. The approach is implemented in a geometry preparation tool and the results are compared with other approaches.

INTEGRATED DESIGN METHODOLOGY: A PROPOSAL FOR A SCIENTIFIC RESEARCH-BASED DESIGN PROCESS FOR STIMULI-RESPONSIVE PRODUCTS

AbstractComplex global problems, such as sustainable crop production, where conventional products do not fully solve the problem due to their low efficacy and negative environmental impact, require rationally designed products. Generally, these products are based on efficient technologies and stimuli-responsive and high-performance materials. Considering the product design approach with a science-based approach such as drug development through QbD. We propose to merge the most relevant elements of these approaches in an integrated design methodology. Regarding the conceptual analysis, we propose two phases: initially, an early phase with conceptual solutions, followed by an advanced phase based on QbD elements to define the research hypothesis. Hence, optimal product conditions defined in the design space must comply with the required performance of the stimuli-responsive product. So, with this proposed integration we pretend to potentialize and strengthen the established tools for product design, achieving an advanced and robust design methodology.

A CIRCULAR PRODUCT DESIGN TOOLKIT: METHODOLOGICAL BACKGROUND, BASIC PRINCIPLES AND BUILDING BLOCKS

AbstractCircular product design has been recognised in the academia as a foundational step for companies to make circular business models functional and viable. In this regards, it is vital to have a quick-and-easy practical toolkit providing diagnostics and specific guidelines on product design in terms of circularity performance. The present paper announces a Circular Product Design Toolkit (CPD Toolkit) under development now, which aims at enhancing the circularity potential of an existing product by redesign. The following objectives are addressed. First, a brief review of existing approaches in the field of product-level circularity metrics and also available circular product design tools to clarify their purpose and practical value is conducted. Second, the scientific approach to assess a product circularity performance, previously developed, as a methodological background of the CPD Toolkit is outlined. Third, the basic principles and building blocks of the CPD Toolkit are briefly set out with further discussion in terms of possible presentation of information block as actual product circularity dataset and guideline part dealing with specific instructions for a company on how to progress in the circularity of the product produced.

Group contribution-based property modeling for chemical product design: A perspective in the AI era

We provide a perspective of the challenges and opportunities for the group contribution approach for property prediction modeling with respect to their use in the design of chemical-based products in the modern era of artificial intelligence. In particular, we discuss issues related to the correct formulation of the product design problem, representation of molecular structures for property prediction as well as generation of product candidates, regression of property model parameters, and the integration of property related data and models with product design methods and tools using several conceptual examples. The need for developing appropriate hybrid AI models is described and recommendations for future work are presented.

Digital integration of total lifecycle tools for sustainable product design

Digital integration of total lifecycle tools for sustainable product design

Investigation of Some Bioactivities and Odor Components of Jasminum officinale Linn. (Oleaceae): A Valuable Tool for Cosmetic Product Design

In this study, researches were carried out on the protease enzyme activity of Jasminum officinale Linn. flower which grows naturally in Muğla and its surroundings. In addition, fragrance components in the content of jasmine flower were determined. It was aimed to be used in perfume making based on the harmony of white jasmine flower with other flowers and the concept of note. Protease enzyme was purified from J. officinale flower using TPP (Three Phase Partitioning) method. Optimal pH and optimal temperature for the enzyme, Km and Vmax values for casein, azokazaein, gelatin, hemoglobin, and azoalbumin substrates were determined. SDS-PAGE was used to check the purity of the protease enzyme purified from the J. officinale. The molecular weight of the enzyme was calculated as 21.386 kDa using gel filtration chromatography. The phenolic content was also determined. It has been determined that the content of jasmine flower can be used in perfume design which is the most prestigious product of the cosmetic industry.

Digital twin of end-of-life process-chains for a circular economy adapted product design – A case study on PET bottles

The concept of Circular Economy (CE) is gaining increasing attention as an indispensable renewal of linear economy without neglecting sustainable development goals. Closing resource loops and keeping resources in the system at the highest level of use for as long as possible are cited as the main goals of CE. However, due to missing information exchange, the lack of consistency between the existing end-of-life (EOL) infrastructure and the respective product designs hinders a successful circularity of resources. This research presents a method to collect, process, and apply EOL process data to provide the beginning-of-life (BOL) with important EOL-knowledge through a CE-adapted product design assessment. EOL-data is collected using a Circular Value Stream Mapping (C-VSM), EOL-information is processed using a digital state flow representation, and EOL-knowledge is applied by providing a decision-support tool for product designers in the context of a PET bottle case study in Luxembourg. The goal is to anticipate a circular flow of resources by reflectively aligning product design with the relevant EOL infrastructure. In contrast to the linear economy, the developed method makes it possible to consider not only the requirements of users but also the actual end users, the EOL process chains, when designing products.

Multimodal Natural Human–Computer Interfaces for Computer-Aided Design: A Review Paper

Computer-aided design (CAD) systems have advanced to become a critical tool in product design. Nevertheless, they still primarily rely on the traditional mouse and keyboard interface. This limits the naturalness and intuitiveness of the 3D modeling process. Recently, a multimodal human–computer interface (HCI) has been proposed as the next-generation interaction paradigm. Widening the use of a multimodal HCI provides new opportunities for realizing natural interactions in 3D modeling. In this study, we conducted a literature review of a multimodal HCI for CAD to summarize the state-of-the-art research and establish a solid foundation for future research. We explore and categorize the requirements for natural HCIs and discuss paradigms for their implementation in CAD. Following this, factors to evaluate the system performance and user experience of a natural HCI are summarized and analyzed. We conclude by discussing challenges and key research directions for a natural HCI in product design to inspire future studies.

Product Tests in Virtual Reality: Lessons Learned during Collision Avoidance Development for Drones

Virtual reality (VR) and real-world simulations have become an important tool for product development, product design, and product tests. Product tests in VR have many advantages, such as reproducibility and shortened development time. In this paper, we investigate the virtual testing of a collision avoidance system for drones in terms of economic benefits. Our results show that virtual tests had both positive and negative effects on the development, with the positive aspects clearly predominating. In summary, the tests in VR shorten the development time and reduce risks and therefore costs. Furthermore, they offer possibilities not available in real-world tests. Nevertheless, real-world tests are still important.

PENINGKATAN KUALITAS PRODUK BOOTH DISPLAY MENGGUNAKAN METODE QUALITY FUNCTION DEPLOYMENT (QFD) DAN PERANCANGAN TOOL DESAIN PRODUK MENGGUNAKAN MORPHOLOGICAL CHART

A company must provide quality products that can provide satisfaction to consumers. Therefore, it is crucial to know the consumer's desire to increase customer satisfaction. The objective of this research is to acquire the display booth's product specifications and to design a tool that contains alternative product designs that can help consumers make decisions for the display booth. The method used in this research is the Quality Function Deployment (QFD) method to determine product specifications based on consumer desires and the Morphological chart method for designing product design tools. Based on research using the QFD method, the product specifications of the display booth were obtained, namely, the product shape (8.31), raw materials (7.50), product size (6.11), completeness of product components (5.15), surface texture (2, 14), and color (0.99). These specifications are used for product design tools using the morphological chart method. The tools designed have five alternative designs for each product specification. Suggestions for further research should afford to use science and other approaches to improve product quality and redesign tools that can make it easier for consumers and companies.

Digital integration of total lifecycle tools for sustainable product design

Digital integration of total lifecycle tools for sustainable product design

Additive manufacturing in drug delivery: Innovative drug product design and opportunities for industrial application.

Additive manufacturing (AM) or 3D printing is enabling new directions in product design. The adoption of AM in various industrial sectors has led to major transformations. Similarly, AM presents new opportunities in the field of drug delivery, opening new avenues for improved patient care. In this review, we discuss AM as an innovative tool for drug product design. We provide a brief overview of the different AM processes and their respective impact on the design of drug delivery systems. We highlight several enabling features of AM, including unconventional release, customization, and miniaturization, and discuss several applications of AM for the fabrication of drug products. This includes products that have been approved or are in development. As the field matures, there are also several new challenges to broad implementation in the pharmaceutical landscape. We discuss several of these from the regulatory and industrial perspectives and provide an outlook for how these issues may be addressed. The introduction of AM into the field of drug delivery is an enabling technology and many new drug products can be created through productive collaboration of engineers, materials scientists, pharmaceutical scientists, and industrial partners.

HEURISTICS FOR AWARENESS SUPPORT IN GROUPWARE SYSTEMS

ABSTRACT: Groupware Systems (GS) or collaborative systems are software systems that support the development of activities in which a group of users interacts to combine their skills, abilities, and work to achieve a common goal. In this area, an important concept is awareness, which is the information that helps people be aware of events beyond their current tasks. This information makes smoother the use of a collaborative system, so it is a fundamental element in this kind of software. In the design and construction of these types of systems, heuristics are used as design guidelines that serve as a useful evaluation tool for product designers and usability professionals. The current heuristics and guidelines for the design of awareness support focus on supporting the awareness of the team in the shared workspace, without considering elements to support the information needs of the user's own and individual interaction within the workspace. To address this problem and to facilitate the design and integration of awareness support, we developed 13 heuristics that integrate principles of Human-Computer Interaction and Computer Supported Cooperative Work to help groupware designers meet individual and team awareness needs. For evaluating the validity of the proposed heuristics, a structured and iterative consultation process was carried out with experts in Human-Computer Interaction and Computer-Supported Cooperative Work. The proposed heuristics can help software engineers develop collaborative systems that integrate awareness information and satisfy users' contextual information needs. Keywords: Awareness, virtual groups, collaborative work, heuristics.