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6th International digital human modeling symposium (DHM)

作者： Zelck, Sander Verwulgen, Stijn Denteneer, Lenie Scataglini, Sofia Univ Antwerp Fac Design Sci Dept Prod Dev Antwerp Belgium Univ Antwerp Fac Med & Hlth Sci Dept Rehabil Sci & Physiotherapy Antwerp Belgium Mil Hosp Queen Astrid B-1120 Brussels Belgium

ISBN: (纸本)9781643681054;9781643681047

Safeguarding the health of dockworkers in maritime transportation represents a high priority with employer's organizations within the port facilities and maritime organizations. Riggers responsible for container lashing secure a high amount of containers on the ship while working with heavy equipment on a tight schedule and therefore risking musculoskeletal disorders. In addition there is a gap discovered between the learned practices at the training facility and the behavior applied on the work floor. As a result it is necessary to provide a risk assessment tool for maritime workers. Firstly, non-intrusive motion capture method can be used to map their posture and movements with the possibility to emphasize on causing factors of repetitive strain injuries. Secondly, a DHM representing the rigger in maritime environment is created in Blender. Finally, an inertial mocap system is used to monitor kinematic lashing movements and to create a musculoskeletal model. The output can be used to create a framework for future observations with focus on developing a product-service-system (PSS) and smart personal protective equipment (PPE) tools.

关键词： Wearable Motion Capture Inertial System Product-Service-System (PSS) digital human modeling Marine (transportation) Occupational Repetitive Actions (OCRA) Health Monitoring Marine Workers

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A digital human Model for the Simulation of Dynamic Driving Maneuvers 6

A Digital Human Model for the Simulation of Dynamic Driving ...

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6th International digital human modeling symposium (DHM)

作者： Roller, Michael Doerlich, Vanessa Linn, Joachim Bjoerkenstam, Staffan Mardberg, Peter Fraunhofer ITWM Kaiserslautern Germany Fraunhofer Chalmers Ctr Gothenburg Sweden

ISBN: (纸本)9781643681054;9781643681047

In this work, a digital human model based on multibody system dynamics is used in a car pre-crash scenario. An optimal control approach is used to generate motion and control signals. The arms of the manikin are actuated by Hill muscles, while the rest of the body is controlled by joint torques. A full braking maneuver is investigated as an application case.

关键词： digital human model Hill muscle Optimal control Dynamic driving Pre-crash

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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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Assessment of Aircraft Pilot Seat Performances with digital human Models and Virtual Prototypes 6

Assessment of Aircraft Pilot Seat Performances with Digital ...

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6th International digital human modeling symposium (DHM)

作者： Regnault, Jerome Borot, Caroline Cabane, Cecile ESI Group Rungis France

ISBN: (纸本)9781643681054;9781643681047

In the aeronautic industry, some research is currently carried out to improve pilot seating and lying comfort, as well as cockpit ergonomics and accessibility. Pilots spend indeed a lot of time on their seat during a flight. If seats are uncomfortable and pilots are in a wrong posture, risks of injuries and fatigue increase a lot. But taking into account these comfort requirements for the pilot seat and the cockpit design is very challenging. In fact, the very strict aeronautics standards for certification may sometimes jeopardize initial design ambitions regarding comfort. The necessary innovations to address certification and comfort cannot rely on a classical trial-and-error approach on real prototypes with human volunteers. This way of working presents several disadvantages related to test repeatability and human subjectivity. From one real test to another, volunteers' morphology, posture and mood may change and sometimes do not represent the range of possible occupants. In addition, as tests happen late in the development process, at a time where there are limited possibilities to improve the seat and cockpit designs, or propose radically innovative solutions, it becomes very complicated for engineers to reach their initial objectives. To avoid these issues related to real tests, OEMs and suppliers are beginning to change their development process to adopt alternative ways to iterate earlier in the conception phase. In the scope of a project on pilot cabin development, done with Dassault Aviation, Safran and ESI Group, a tool dedicated to aircraft pilot seat virtual prototyping has been developed to integrate earlier in the industrial process comfort aspects and seat integration inside the cockpit. It has been adapted from ESI's Virtual Seat Solution already used in the automotive industry. This paper will describe an application of this virtual prototyping on industrial examples and how designers can virtually create a seat model right from the early design ph

关键词： Aircraft Pilot Seat Virtual Prototyping digital human modeling Static Comfort Postural Comfort Vibratory Comfort Thermal Comfort ESI's Virtual Seat Solution for Aero

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digital human modeling: A Review and Reappraisal of Origins, Present, and Expected Future Methods for Representing humans Computationally

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INTERNATIONAL JOURNAL OF human-COMPUTER INTERACTION 2022年第10期38卷 897-937页

作者： Demirel, H. Onan Ahmed, Salman Duffy, Vincent G. Oregon State Univ Sch Mech Ind & Mfg Engn Corvallis OR 97331 USA Purdue Univ Sch Ind Engn W Lafayette IN 47907 USA Purdue Univ Sch Agr & Biol Engn W Lafayette IN 47907 USA Purdue Univ Regenstrief Ctr Healthcare Engn W Lafayette IN 47907 USA

The effective use of computational modeling and simulation tools early in the design process is arguably becoming a gold standard for modern product development. Compared to many mechanistic computational design approaches, modeling and simulating humans, due to their inherent complexities of physiological and cognitive attributes, provides one of the most challenging undertakings. With the rapidly expanding use of computer, sensor, and visualization technologies, digital human modeling (DHM) emerged as a computerized design support methodology that enables modeling and simulation of humans within a computer-aided design (CAD) or virtual environment (VE). Implementing DHM with physical or digital mockups brings the advantages of running various "what-if" design scenarios early in design;thus, enhancing concept generation efforts by filtering out infeasible ideas and exploring better design alternatives. A modern product development process with DHM can also help to reduce the overall cost and time required in the long run. Although several DHM software packages are available and many companies have been designing with DHM, the domain has not reached maturity in resolving theoretical research questions and fostering simulation-based ergonomics practice. Besides, the growing body of literature, software platforms, and technology integration makes it challenging for newcomers and specialists from disciplines other than human factors engineering (HFE) to recognize the power of DHM tools. This paper aims to provide a comprehensive review of the DHM domain and summarize the evolution, current status, and future trends of the DHM design support tools. We hope this review will provide a guideline for designers and serve as a roadmap for current and future researchers interested in DHM-related research to find out new venues and opportunities for further international collaborations.

关键词： Computer software

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Gamification of DHM Software 6

Gamification of DHM Software

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6th International digital human modeling symposium (DHM)

作者： Jimenez Sanchez, Juan Luis Palmquist, Adam Scania CV AB Global Ind Dev S-15132 Sodertalje Sweden Univ Skovde Sch Informat S-54128 Skovde Sweden

ISBN: (纸本)9781643681054;9781643681047

This study concerns the implementation of a gamified API in a digital human modelling simulation software, Industrial Path Solutions - Intelligently Moving Manikin (IPS-IMMA). The software has been identified as complex to learn and use, requiring a high level of expertise and involvement in order to interpret the interface and finding the correct tool for each task, causing disengagement from the users. To solve this issue, the study has looked into the concept of gamification to increase user activity by using elements and techniques from game design and applying them in a non-game context. Research on gamification in learning and training indicate increased engagement from the user, quicker on-boarding to a system as well as potential increases in learning outcome. The gamified API implementation in this project has the purpose of increasing user engagement when utilizing the tool, increase the retention rate of users, as well as smoothing the learning curve for the user, producing an optimal learning trajectory that will make the novice user become a skilled user within a shorter period of time. To achieve this, an API widget package has been connected to IPS-IMMA to create one of the first gamified interfaces for a digital human modelling software.

关键词： Gamification Ergonomics Simulation digital human Modelling On-the-job-training

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digital human Models for human-Centered design

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JOURNAL OF ROBOTICS AND MECHATRONICS 2017年第5期29卷 783-789页

作者： Mochimaru, Masaaki Natl Inst Adv Ind Sci & Technol Human Informat Res Inst Cent 11-1-1 Umezono Tsukuba Ibaraki 3058560 Japan

digital human models represent variations of body shapes for the target end-user population. They can simulate human motions, evaluate workloads, and are utilized to assess safety and usability of products and environments in a virtual space with computer-aided design. The digitalized process can reduce actual test panels, time and cost for human-centered design. Recent trends in research show that the target population of digital human models includes people with special needs. Moreover, digital human models are embedded into interactive tools to support design workshop.

关键词： computer-aided engineering digital human modeling ergonomics

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Multimodality on the Road: Towards Evidence-Based Cognitive Modelling of Everyday Roadside human Interactions 6

Multimodality on the Road: Towards Evidence-Based Cognitive ...

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6th International digital human modeling symposium (DHM)

作者： Kondyli, Vasiliki Bhatt, Mehul Orebro Univ CoDesign Lab Cognit Vis Orebro Sweden

ISBN: (纸本)9781643681054;9781643681047

We propose an evidence based methodology for the systematic analysis and cognitive characterisation of multimodal interactions in naturalistic roadside situations such as driving, crossing a street etc. Founded on basic human modalities of embodied interaction, the proposed methodology utilises three key characteristics crucial to roadside situations, namely: explicit and implicit mode of interaction, formal and informal means of signalling, and levels of context-specific (visual) attention. Driven by the fine-grained interpretation and modelling of human behaviour in naturalistic settings, we present an application of the proposed model with examples from a work-in-progress dataset consisting of baseline multimodal interaction scenarios and variations built therefrom with a particular emphasis on joint attention and diversity of modalities employed. Our research aims to open up an interdisciplinary frontier for the human-centred design and evaluation of artificial cognitive technologies (e.g., autonomous vehicles, robotics) where embodied (multimodal) human interaction and normative compliance are of central significance.

关键词： multimodal interaction interpersonal communication naturalistic perception joint attention virtual reality autonomous driving

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Grasp Synthesis for digital Hands with Limited Range of Motion in Their Thumb Using a Grasp Database 6

Grasp Synthesis for Digital Hands with Limited Range of Moti...

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6th International digital human modeling symposium (DHM)

作者： Takahashi, Reiko Miyata, Natsuki Maeda, Yusuke Yokohama Natl Univ Grad Sch Engn Sci Yokohama Kanagawa Japan Natl Inst Adv Ind Sci & Technol Artificial Intelligence Res Ctr Tokyo Japan

ISBN: (纸本)9781643681054;9781643681047

For virtual evaluation of universal design products, it is necessary to synthesize natural grasps for various hands including those with disability. As one of the disabilities, we focused on the limitation of the thumb's range of motion (ROM). For example, carpal tunnel syndrome (CTS) is a typical disease that limits thumb's ROM. Though there is no doubt that the range of motion affects the whole grasp, detailed grasp strategy has not been studied so far due to the difficulties in collecting data from such patients. Therefore, in this paper, we propose to synthesize grasping postures by the thumb's ROM-limited digital hands based on the observation of an actual subject whose hand is artificially-disabled. The synthesized postures of the healthy hand and the thumb's ROM-limited hand were obviously different. We applied a contact-region-based method for grasp synthesis for ROM-limited hand and succeeded in synthesizing the grasping postures that reflect the features of the thumb's ROM-limited hands' grasps.

关键词： grasp synthesis universal design digital hands virtual evaluation

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Integrated modeling and simulation with in-line motion captures for automated ergonomic analysis in product lifecycle management

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CONCURRENT engineering-RESEARCH AND APPLICATIONS 2014年第3期22卷 218-233页

作者： Joung, Youn-Kyoung Noh, Sang Do Sungkyunkwan Univ Coll Engn Dept Syst Management Engn Suwon 440746 Gyeonggi Do South Korea

Ergonomics analysis helps to improve workers' safety and the working environment, as well as aiding in the design of tools and equipment for effective production. It plays an important role in time and cost savings, and moreover it improves the quality in product development and production. Furthermore, ergonomics analysis is part of an epidemiological study or safety engineering for the prevention of industrial or musculoskeletal disease. In order to conduct modeling and simulation for ergonomic analysis, creating digital environments and digital human models is essential. However, to create a digital environment, a massive and time-consuming workload is needed for gathering information or the computer-aided design data of equipment, tools, products, and so on, and the location or direction as to where these objects are positioned. Also, when creating a digital human model, it requires expert knowledge, effort and massive time for creating digital humans, postures, detailed moving paths, and time consumed for each posture, which also leads to a massive workload. In this article, an innovative framework, which proposes Product, Process, Plant, and Resource management through the product lifecycle management system for the automation of creating a digital environment, as well as the application of in-line motion capturing technology for automated creations of digital human model are designed;furthermore, the base system for the proposed framework is developed and presented.

关键词： Ergonomics analysis modeling and simulation in-line motion capture product lifecycle management

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