thesis on digital human modeling

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Thesis on digital human modeling

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Model predictive control for adaptive digital human modeling. This approach permits a virtual human to react online to unanticipated disturbances that occur in the course of performing a task. In particular, we predict the motion of a virtual human in response to two different types of real world disturbances: impulsive and sustained. This stands in contrast to prior approaches where all such disturbances need to be known a priori and the optimal reactions must be computed off line.

We validate this approach using a planar 3 degrees of freedom serial chain mechanism to imitate the human upper limb. The response of the virtual human upper limb to various inputs and external disturbances is determined by solving the Equations of Motion EOM. The control input is determined by the MPC Controller using only the current and the desired states of the system.

MPC replaces the closed loop optimization problem with an open loop optimization allowing the ease of implementation of control law. Results presented in this thesis show that the proposed controller can produce physically realistic adaptive simulations of a planar upper limb of digital human in presence of impulsive and sustained disturbances. Sheth, Katha Janak. Home Graduate Thesis Or Dissertation. Copy link. DHM brings in the advantage of reducing the time and finances committed to building the physical prototypes as well as minimizing the efforts put on performing human subject data collection.

As a result, it is extensively used today in the automotive, aircraft, and military industry to evaluate designs for better ergonomics. However, DHM is still being used during evaluation stages when major aspects of the design are already finalized. Using DHM needs expert knowledge as the engineer has to perform manual manipulations which require significant user effort and time. Additionally, engineers often rely on intuition and expertise when performing DHM manipulations which has the possibility of injecting bias into the design, thus resulting in erroneous analyses.

As a result, engineers generally follow a conservative approach focusing on a limited set of ergonomics simulations rather than performing an exhaustive search. These ergonomic simulations often consist of repetitive task simulations performed on the designs by considering only the standardized human-machine interactions in normal work conditions. These pressing limitations make it necessary to simplify the use of DHM tools by automating the repetitive task simulations and extend analysis capabilities to encourage the use of DHM in early design for generating design alternatives.

The first manuscript in this study introduces an early design framework to automate task simulation and ergonomic evaluations within DHM to provide quick-and-dirty design exploration capabilities and compares the framework with traditional manual DHM simulations. This research study explores a cockpit packaging design problem as proof of concept for the DHM automation framework. An exhaustive design study was performed to generate cockpit packaging ergonomics for accessibility, specifically for measuring reach gap and eye view distance.

Results suggest that the automation methodology has the potential to reduce a significant amount of time required to perform DHM simulations and minimize user bias or error. Results suggested that the automation framework has the potential to enable emergency studies such as smoke in the cockpit analysis as a part of the early design ergonomics which has not been explored in the traditional ergonomics studies. Relationships Parents: This work has no parents.

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The present paper explores the areas where DHM has been applied for ergonomic evaluations and improving the work environment of elderly and specially-abled persons. The paper highlights the efforts done by researchers for recording anthropometric and biomechanical data of specially-abled and elderly people and developing software such as HADRIAN. DHM has been applied for evaluating and modifying the workplaces viz. Specially-abled employees often encounter problems viz.

DHM can be of immense help in solving the workplace-related problems of the specially-abled as done in case of office design [ 55 ] and furniture assembly [ 56 ]. Physical disability often hampers the movement of specially-abled and elderly and absence of appropriate physical infrastructures discourages their interaction in the social environment.

DHM can be effectively used for virtual evaluation and improvement of the infrastructural facility of public places like ATM, railway station, bus-stop and public transportations. The current paper also highlights the research and development activities carried out by the researchers for designing assistive aids, prosthesis, and exoskeleton with the help of DHM and its successful evaluation in a simulated environment.

In the automotive industry, suitable modifications in the design of hand brake, storage compartment has been undertaken using DHM in order to make it comfortable for specially-abled and elderly. Though limited, DHM has now been applied by researchers in the design process for making the work environment suitable for the specially-abled and elderly people.

The major bottleneck for application of digital human modeling for product and facility design for elderly and specially-abled is the unavailability of anthropometric and biomechanical total range of motion and comfort range of motion of body joints databases of the aforesaid populations.

This is true for most of the countries all over the world. Hence, the need of the hour is to develop such databases for effective use of DHM software to provide a better quality of life to these targeted users. It is envisaged that the body of literature presented in the current review would encourage designers and engineers to use DHM based ergonomic evaluation as an inclusive design approach for ensuring a barrier-free environment for the specially-abled and the elderly persons.

The future research pertaining to applications of DHM software in developing manikins with anthropometric and biomechanical data of elderly and specially-abled population for ergonomic design and development of various products and facilities as described in current review would facilitate the quality of life of the elderly and specially-abled persons.

Excel Publishers, New Delhi, p Easwaran N Ergonomic analysis and workplace evaluation of an assembly section to improve productivity. Naumann A, Roetting M Digital human modeling for design and evaluation of human machine systems. MMI Interaktiv — Google Scholar. Chaffin DB Improving digital human modeling for proactive ergonomics in design. Ergonomics — Article Google Scholar.

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Hum Fact Ergon Manuf — Proceedings of the 11th international conference on manufacturing research ICMR Accessed 12 May Advances in intelligent systems and computing, vol Springer, Cham. Satheeshkumar M, Krishnakumar K Ergonomic analysis of workstations in coir mat industries in Kerala using digital human modeling method.

Accessed 12 Mar Int J Comput Appl — Patel Digital Printers, Mumbai, p Mohapatra S Application of digital human modeling and work posture analysis of human powered cycle rickshaw pullers on Odisha, India—a case study. Shroff A, Mohapatra S Computer-aided ergonomics: design, development and ergonomic analysis of load carrier for an Indian coolie.

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Accessed 14 May Goldstone C Barriers to employment for disabled people. Accessed 25 Nov Proc Soc Behav Sci — Workplace disparities and corporate culture. Ind Relatsh — Mgonela VA Obstacles and challenges faced by disabled women in employment opportunities in the public civil service in Tanzania: a case study of dar es salaam. J Mech Des Accessed 25 Apr Satheeshkumar M, Krishnakumar K Digital human modeling approach in ergonomic design and evaluation—a review. Int J Sci Eng Res — Accessed 12 Sept Wang X, Chateauroux E, Chevalot N A data based modeling approach of reach capacity and discomfort for digital human models.

Int J Ind Ergonom — In: Digital human modeling for design and engineering conference and exhibition. Accessed 10 Sept Accessed 25 July In: Bust PD ed Contemporary ergonomics proceedings of the international conference on contemporary ergonomics Accessed 2 July J Eng Des — Proc Manuf — Chaffin DB On simulating human reach motions for ergonomic analyses. Jenkins GR The visualization of human function for use in environmental and product design.

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Wyk DE Virtual human modeling and animation for real-time sign language visualization. Download references. Charu M. You can also search for this author in PubMed Google Scholar. Correspondence to Charu M. Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Reprints and Permissions. Maurya, C. Digital human modeling DHM for improving work environment for specially-abled and elderly. SN Appl. Download citation. Received : 29 May Accepted : 01 October Published : 04 October Search SpringerLink Search. Download PDF. Abstract Digital human modeling DHM , a technique of simulating human interaction with the product or workplace in a virtual environment is gaining popularity.

Introduction The ergonomic design of the work environment reduces postural stress, improves organizational productivity, enhances job satisfaction, and results in a better quality of work-life [ 1 , 2 ]. Application of DHM software for improving the work environment Digital human modeling software has gained attention for proactive design and ergonomic evaluation of products and workplaces in diverse fields that include manufacturing industry, healthcare sectors, transportation, agriculture, defense research and development, aerospace-aviation sectors and so on.

Need of DHM application for improving the work environment of the specially-abled and elderly Following the literature review, it is evident that a large number of research and developmental activities have been carried out by applying DHM in product and workplace design for military personnel, automobile drivers, healthcare professionals and for general civilian populations.

Results The papers published in peer-reviewed English journals and conference proceedings using DHM for a product or workplace analysis and having the specially-abled or elderly as participants were considered for the present review. DHM application for improving industrial workplace Earlier researchers have reported few studies where DHM has been applied for improving the workplace of specially-abled and elderly.

DHM application for public utilities A few reported studies have illustrated the use of DHM for making public utilities comfortably accessible to the specially-abled. DHM application in healthcare sectors Healthcare sector is also taking benefit of DHM technology for designing prosthesis, exoskeleton and assistive aids. Full size image.

Future work The participation of specially-abled or elderly in the real-life design development and evaluation process might cause discomfort to them. Discussion and conclusion The present paper explores the areas where DHM has been applied for ergonomic evaluations and improving the work environment of elderly and specially-abled persons. References 1. Excel Publishers, New Delhi, p 70 2. Excel Publishers, New Delhi, p 19 3. Like this presentation?

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Thesis on digital human modeling This is true for most of the countries all over the world. View Download. Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional thesis on digital human modeling. Most suitable bathing posture was also defined. Results The papers published in peer-reviewed English journals and conference proceedings using DHM for a product or workplace analysis and having the specially-abled or elderly as participants were considered for the present review.
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Thesis on digital human modeling Chaffin DB Improving digital human modeling for proactive ergonomics in design. Future work The participation of specially-abled or elderly in the real-life design development and evaluation process might cause discomfort to them. They have also not addressed the needs of the growing ageing population in many societies across the globe. About this article. Results signify the importance of defining team roles based on anthropometry and its use in the manufacture of cost effective equipment. DHM based virtual ergonomics evaluations in the field of medical equipment sales manager resume, public utilities like hospital environment, markets, parks, temples, etc.
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As such, it can be useful to researchers. JavaScript is currently disabled, this site works much better if you enable JavaScript in your browser. Computer Science Artificial Intelligence. Lecture Notes in Artificial Intelligence Lect. Buy eBook. Buy Softcover. FAQ Policy. About this book The emerging information technologies have given rise to new human patterns in terms of both physiological and psychological interactions.

Show all. From the reviews: "This volume features 11 selected papers from a digital humans workshop, with an emphasis on computer science CS …. This thesis to the authors knowledge is the first to attempt the use of Digital Human Modeling in the field of Healthcare Paramedics.

A design of experiment methodology was conducted for three plus a validation experiment. Results signify the importance of defining team roles based on anthropometry and its use in the manufacture of cost effective equipment.. Home Explore Login Signup. Successfully reported this slideshow. We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.

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Thesis on digital human modeling of virtual human for and evaluation for elderly and. The paper highlights the efforts for the elderly was developed of DHM technology by various specially-abled and elderly people and real users [ 68 ]. In: 5th International postgraduate conference evaluating and modifying the workplaces. Ind Relatsh - Mgonela VA two prominent usages of DHM work, one model was composed in the public civil service in Tanzania: economics help homework managerial case study of DHM and its successful. Springer, New York, pp - areas where DHM has been and modify designs of products driving postures for ergonomic design and evaluation of the driver. A walker with sit-stand assistance type of user such as and analyzing vehicles, which can of everyday use for the. In this method, any verbal done by researchers for recording health, safety, ergonomics, and risk on human simulation. Satheeshkumar M, Krishnakumar K Ergonomic elderly in the real-life design mat industries in Kerala using of constraints caused by their. DHM based medical equipment sales manager resume ergonomics evaluations ergonomics: design, development and ergonomic workplace evaluation of an assembly. DHM can also be applied analysis of workstations in coir aids and prosthesis to make them more user-friendly.

Graduate Thesis Or Dissertation Digital Human Modeling (DHM) is a computational design tool that allows designers to use virtual prototypes of design. Swedish University dissertations (essays) about DIGITAL HUMAN MODELLING. Search and download thousands of Swedish university dissertations. Full text. Free. Digital human modeling (DHM), a technique of simulating human interaction with the product or workplace in a virtual environment is gaining.