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PRODEC for human systems integration of increasingly autonomous systems

SYSTEMS engineering 2024年第5期27卷 805-826页

作者： Boy, Guy Andre Masson, Dimitri Durnerin, Elise Morel, Chloe Paris Saclay Univ FlexTech Chair Cent Supelec 9 Rue Joliot Curie F-91190 Gif Sur Yvette France ESTIA Inst Technol FlexTech Chair Bidart France

The purpose of the PRODEC scenario-based design method is the incremental cross-fertilization and refinement of procedural scenarios and declarative configurations. It uses virtual prototypes of the developed systems (mainly life-critical systems) to conduct human-in-the-loop simulations (HITLSs). Based on human systems integration (HSI) principles and criteria, as well as expertise and experience in the domain at stake, this HSI approach grounded in virtual environments requires a clear definition of physical and cognitive tangibility metrics to assess the distance between virtual and tangible (grasp) dimensions of the system being developed when it is put to work. PRODEC considers human and machine systems described in terms of structures and functions incrementally designed using procedural scenarios (i.e., stories) in task and activity networks, which provide life to declarative configurations (i.e., system's functions and structures). This active modeling and simulation process enables the discovery of emergent structures and functions of the system being developed when it is virtually operated. PRODEC's use is illustrated in an example. We discuss the use of PRODEC and its results as to how they can be used with digital twins.

关键词： BPMN complexity digital engineering flexibility human systems integration human-centered design human-in-the-knowledge elicitation maturity modeling oop simulation physical and cognitive structure and functions procedural and declarative scenarios stability sustainability tangibility virtual prototypes

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Developing a digital human modeling toolset: Simulating elderly posture in Grasshopper to optimize living environments

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JOURNAL OF BUILDING engineering 2024年 90卷

作者： Yuan, Hao Southeast Univ Sch Architecture Nanjing 210019 Jiangsu Peoples R China

The increasing aging population highlights the critical need for elderly-friendly architectural environments. Existing architecture design guidelines often overlook the varied needs of individual differences among the elderly. digital human Models (DHMs) offer an effective solution by simulating individual differences and interactions within architectural spaces for the elderly, enabling ergonomic assessments during the design phase of architecture. However, existing DHM platforms have not been integrated with architectural software, limiting designers' ability to receive timely feedback during the design phase. This study addresses this gap by developing a novel DHM toolset on architectural software, Grasshopper, that simulates elderly postures and automatically assesses ergonomic factors like joint angles and comfort levels. Three application scenarios for the toolset were provided: assessing the minimum doorway side space for walker users, determining the handrail position for wheelchair users during the transfer process in the bathroom, and evaluating the comfort level of elderly people getting support postures in the bedroom. The results demonstrate that the toolset can effectively simulate the daily activity postures of the elderly and offer practical design suggestions. The theoretical contribution of this study lies in providing a novel toolset that integrates DHM with architectural design software, offering a new perspective and method for architectural design that considers individual differences among the elderly. Practically, by assessing minimal space and posture comfort, the toolset enables designers to obtain timely ergonomic feedback during the architecture design phase. This ultimately improves architectural design schemes and fosters independence and safety for the elderly in built environments.

关键词： digital human modeling FABRIK algorithm Elderly posture simulation Living environment optimization Accessibility design

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The Use of digital human modeling to Assess Vision Obstruction in Airport Taxi Operations 15th

The Use of Digital Human Modeling to Assess Vision Obstructi...

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15th International Conference on digital human modeling and Applications in Health, Safety, Ergonomics and Risk Management (DHM)

作者： Joffe, Gabrielle B. Demire, H. Onan Oregon State Univ Corvallis OR 97331 USA

ISBN: (纸本)9783031610592;9783031610608

The operation of ground support vehicles in busy airport taxiways and runways is a growing concern, especially when the driver does not have an adequate field of view (FoV). Airport ground vehicle accidents due to vision obstruction have resulted in loss of revenue, injuries, and fatalities. The research presented in this paper examines and quantifies vision obstruction in airport ground support vehicles using an early design methodology based on digital human modeling (DHM). The methodology is presented through investigating two case studies based on actual airport accidents influenced by vision obstruction, involving pushback tractors and an aircraft refueling truck. Each study comprises three-dimensional (3D) computer-aided design (CAD) models of the vehicles and four DHM manikins with varying anthropometries. Obstruction-causing vehicle elements are identified, and then the CAD models are redesigned to improve the driver's forward FoV. Results from this study show that DHM can facilitate a proactive design approach by pinpointing potential hazards in the design of ground vehicles by retrofitting changes during early-phase design via digital models to reduce the risk of driver vision obstruction.

关键词： digital human modeling human Factors engineering Ergonomics Vision Obstruction Aviation engineering design

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The Use of digital human modeling in Ergonomic design and Product Development

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Journal of The Institution of Engineers (India): Series C 2023年第5期104卷 1133-1138页

作者： Dahibhate, Ganesh Shinde, Rajaram Sakle, Nilesh Engineering Research and Design Tata Technologies Limited 25 Phase 1 Hinjewadi Rajiv Gandhi Infotech Park Pune411057 India Rajarambapu Institute of Technology Rajaramnagar Islampur Dist. Sangli415414 India ARAI Academy Automotive Research Association of India B-16/1 MIDC Chakan Pune410501 India

Ergonomic design principles have been attempted to be included into product development and work system design over the times. The advancements in ergonomic evaluation have made it possible to integrate ergonomics into work system design. Virtual Ergonomics and digital human modeling (DHM) are fast emerging as enabling tools for ergonomic design, and analysis in digital manufacturing and product development. Ergonomic studies are done to analyze work-related musculoskeletal disorders on product design, workstations, and work systems by eliminating production prototypes and real-time evaluation of them, DHM shortens the cycle times of the product design and manufacturing processes. Anthropometry databases are used in product design and human ergonomics evaluation, and digital human modeling aids in ergonomics analysis from the beginning of the product and workstation design process. Conventional ergonomic assessment based on predetermined time standards and typical analytical approaches is discussed in the review article. To facilitate digital manikin modeling for human ergonomics analysis, various databases are integrated into the software. In this article, popular human ergonomics analysis software such as CATIA-DELMIA Jack and RAMSIS are studied for their merits and shortcomings in ergonomics design and analysis. © 2023, The Institution of Engineers (India).

关键词： Product development

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digital Twin-Driven modeling and Application of High-Temperature Biaxial Materials Testing Apparatus

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Computers, Materials & Continua 2025年第3期82卷 4137-4159页

作者： Xiyu Gao Peng Liu Anran Zhao Guotai Huang Jianhai Zhang Liming Zhou School of Mechanical and Aerospace Engineering Jilin UniversityChangchun130025China

The High-Temperature Biaxial Testing Apparatus(HTBTA)is a critical tool for studying the damage and failure mechanisms of heat-resistant composite materials under extreme ***,existing methods for managing and monitoring such apparatus face challenges,including limited real-time modeling capabilities,inadequate integration of multi-source data,and inefficiencies in human-machine *** address these gaps,this study proposes a novel digital twin-driven framework for HTBTA,encompassing the design,validation,operation,and maintenance *** integrating advanced modeling techniques,such as finite element analysis and Long Short-Term Memory(LSTM)networks,the digital twin enables high-fidelity simulation,real-time predictive modeling,and robust remote monitoring of *** research contributes to bridging the knowledge gap in applying digital twin technology to high-temperature multi-axial testing *** existing solutions,the proposed approach achieves synchronization error,real-time monitoring with ms delay,and predictive accuracy for temperature<2%<100distributions under extreme conditions up to 2500℃.The findings highlight the effectiveness of the digital twin in improving system reliability,enhancing interaction efficiency,and reducing maintenance *** study not only advances the application of digital twin technology in high-temperature material testing but also establishes a foundation for broader adoption in aerospace,automotive,and other industrial *** research directions include exploring non-proportional loading scenarios,expanding multi-environment simulations,and integrating in-situ observation techniques.

关键词： digital twin HTBTA remote monitoring LSTM

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The effect of graphene nano-platelets on the stability study and artistic design of engineering architectural honeycomb nanocomposite structures

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ADVANCES IN NANO RESEARCH 2025年第1期18卷 53-60页

作者： Xu, Qiang Fee, X. Shen, X. Yvaz, A. Honam Univ Dept Culture & Art Management Gwangju 62399 South Korea State Marine Tech Univ World Class Res Ctr Adv Digital Technol St Petersburg 190121 Russia

Nanotechnology has been integrated into architectural design, and the construction industry is experiencing new solutions that give better structural integrity, aesthetic value, and sustainability for buildings. This paper presents the stability behavior of an artistic design of engineering architectural structure consisting of a honeycomb nanocomposite annular plates reinforced by graphene platelets. A high-order deformation theory is used here for mathematical modeling of artistic design of engineering architectural structure, which can describe the behaviors of these annular plates. Then, a numerical procedure would be introduced to analysis of buckling characteristics of structure. Architectural structures with precisely constituted nanomaterials-carbon nanotubes and graphene derive strength and resilience unprecedented in their ability to withstand environmental stresses and human impacts. The results represent a valuable contribution to the continuing effort of improving our understanding of buckling phenomena in engineering architectural structure and provide a fundamental basis for designing their mechanical behavior, with the aim of enhancement in both geometry and material composition. It is the belief of the paper that in pointing out or highlighting the symbiotic relationship that exists between technology and artistry, it will be in a position to segue the community of architects to be more innovative, experiment with new ideas in the architectural design dimension.

关键词： annular plates artistic design of engineering architectural structure honeycomb nanocomposite numerical method stability

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A response surface methodology to determine the optimal objective function weightings within a multi-objective optimization digital human model used to predict postures

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COMPUTER METHODS IN BIOMECHANICS AND BIOMEDICAL engineering 2023年第2期26卷 187-198页

作者： Davidson, Justin B. Cashaback, Joshua G. A. Fischer, Steven L. Univ Waterloo Dept Kinesiol & Hlth Sci Waterloo ON Canada Univ Delaware Dept Biomed Engn Dept Mech Engn Newark DE 19716 USA

Multi-objective optimization digital human models permit users to predict postures that follow performance criteria, such as minimizing torques. Currently, it is unknown how to weight different objective functions to best predict postures. Objective one was to describe a response surface method to determine optimal objective function weightings to predict lift postures. Objective two was to evaluate the sensitivity of different error calculation methods. Our response surface approach has utility for determining optimal objective function weightings when using a digital human model to evaluate human-system interactions in early design stages. The approach was not dependent on variations in error calculation methods.

关键词： digital human modeling digital simulation human computer interaction human-in-the-design-loop software prototyping

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A digital-twin evaluation framework of zero carbon buildings for existing residential buildings based on scan-to-BIM

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ALEXANDRIA engineering JOURNAL 2025年 124卷 204-213页

作者： Zhao, Liang Zhang, Hong Wang, Haining Wang, Yue Li, Tianhao Hebei Univ Engn Sch Energy & Environm Engn Handan 056038 Hebei Peoples R China China Univ Min & Technol Sch Architecture & Design Xuzhou 221116 Peoples R China Southeast Univ Sch Architecture Nanjing 210096 Peoples R China Southeast Univ Sch Civil Engn Nanjing 210096 Peoples R China

To tackle the climate warming crisis together, reducing carbon emissions and achieving sustainable human development have become a global consensus. This paper focuses on evaluating zero-carbon retrofit schemes for existing buildings and proposes a digital twin evaluation framework that combines point cloud models and building information modeling. Based on the point cloud data, a 3D visualization model of the existing building is established as a virtual one, and different retrofit schemes are simulated. Then, comprehensively analyze the building energy consumption, building carbon emissions, predicted mean vote (PMV), and predicted percentage dissatisfied (PDD) of the retrofit schemes to find the optimal solution for zero carbon emissions of existing buildings. According to the results of the study, the zero-carbon building retrofit scheme suitable for the case study can reduce building energy use by 13.95 %, increase solar photovoltaic power generation by 27.80 %, and reduce carbon emissions by 18106.32 kgCO2/a.

关键词： Building Information modeling digital Twin Zero-carbon Buildings Point Cloud Building Energy Model

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modeling Methods of 3D Model in digital Twins

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Computer modeling in engineering & Sciences 2023年第8期136卷 985-1022页

作者： Ruijun Liu Haisheng Li Zhihan Lv School of Computer Science and Engineering Beijing Technology and Business UniversityBeijing100080China Department of Game Design Faculty of ArtUppsala UniversityUppsalaS-75105Sweden

To understand the current application and development of 3D modeling in digital Twins(DTs),abundant literatures on DTs and 3D modeling are investigated by means of literature *** transition process from 3D modeling to DTs modeling is analyzed,as well as the current application of DTs modeling in various *** application of 3D DTs modeling in the􀀀elds of smartmanufacturing,smart ecology,smart transportation,and smart buildings in smart cities is analyzed in detail,and the current limitations are *** is found that the 3D modeling technology in DTs has broad prospects for development and has a huge impact on all walks of life and even human *** the same time,the development of DTs modeling relies on the development and support capabilities of mature technologies such as Big Data,Internet of Things,Cloud Computing,Articial Intelligence,and game ***,although some results have been achieved,there are still *** work aims to provide a good theoretical support for the further development of 3D DTs modeling.

关键词： digital twins 3D modeling smart manufacturing smart city smart buildings

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digital Process Twins for Interleaving Requirements Elicitation and design of Cyber-Physical Systems 32

Digital Process Twins for Interleaving Requirements Elicitat...

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32nd IEEE International Requirements engineering Conference (RE)

作者： Jost, Thomas Ernst Gruenbacher, Paul Stary, Christian Johannes Kepler Univ Linz Linz Austria

ISBN: (纸本)9798350395129;9798350395112

Cyber-Physical Systems (CPS) are increasingly becoming part of organizations' digitalization efforts in many different domains. CPS are characterized by their heterogeneity and complexity, thus requiring the involvement of various experts throughout development. digital Twins (DTs) were found to facilitate the acquisition of such technical knowledge required for effective designs. In particular, we pose that process-oriented model representations can help to account for various concerns (e.g.: privacy and security) across CPS components in a human-centered way, thereby enabling the active participation of relevant actors in requirements elicitation and design exploration. Our human-centered approach uses digital Process Twins (DPTs) for eliciting and refining requirements for CPS design, and for supporting agile CPS development. Our ongoing project follows the design science method. We demonstrate results of the first design cycle and provide an example illustrating the modeling part of our methodology.

关键词： Cyber-Physical Systems (CPS) human-Centric design Requirements engineering Requirements Elicitation digital Process Twin (DPT) Subject-Oriented modeling

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