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检索条件"任意字段=Digital Human Modeling for Design and Engineering Conference and Exposition"

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Predicting backhoe excavator operator performance using digital human modeling

Predicting backhoe excavator operator performance using digi...

引用

IIE Annual conference and Expo 2010

作者： Liu, Yang Jiang, Xiaochun Jiang, Zongliang Park, Eui Department of Industrial Engineering North Carolina A and T State University Greensboro NC 27411 United States

There has been a shortage of operators for earth digging heavy equipment such as excavators. It often takes a long time to train a novice user to become an expert user. Over the years, efforts have been made to improve the interface of the excavator to make it easier for the operator to use. Since it is very costly, time-consuming and difficult to assess operator performance each time a new interface design is considered, other alternatives need to be sought. One solution is to use digital human modeling tools such as Jack® to predict operator performance in a simulated environment. In this research, digital human models were developed for excavator operators. An empirical study was conducted using the models. A 3x3 factorial design was used to assess the impact of different control patterns and task types on operator performance. Results indicated that control patterns and task type had an effect on operator performance. Findings from this research provided design suggestions to excavator developers.

关键词： Excavators

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Three axes full servo robotics design and application

Three axes full servo robotics design and application

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International conference on Computer Application and System modeling

作者： Tan, Yali Song, Ke Shen, Miao Department of Electronic and Information Engineering Xi'an JiaoTong University College Xi'an China NO. 16 Research Institute of NO. 9 Academy China Aerospace Science and Technology Corporation Xi'an China

ISBN: (纸本)9781424472369

This paper presents a new design of three axis full servo robot. The detailed design work includes the mechanical structure design with three mutual perpendicular arms. All axes of this robotics are driven by AC synchronous servo motor. Based on such a mechanical structure, the electrical system with DSP and the programmable logic device (CPLD) is designed. DSP of TI TMSF2812 is used to achieve digital signal processing and human to machine interface. The CPLD is used to run logic calculation and trajectory planning. Experiment shows that the robot could precisely move following an predesigned locus with high speed and accuracy in the three-dimensional space. © 2010 IEEE.

关键词： Robots

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A Geometric Modelling in the CAD System from the Medical Images to Support Prosthesis design

A Geometric Modelling in the CAD System from the Medical Ima...

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17th ISPE International conference on Concurrent engineering - New World Situation: New Directions in Concurrent engineering

作者： Canciglieri Junior, Osiris Rudek, Marcelo Francesconi, Tiago de Souza, Teofilo Miguel Pontifical Catholic Univ Parana PUCPR Dept Prod Engn Curitiba Parana Brazil UNESP Univ Sao Paulo State Dept Elect Engn Sao Paulo SP Brazil

ISBN: (纸本)9780857290236

This paper discusses the feasibility of individually designing human prosthesis for surgical use and proposes a methodology for such design through mathematical extrapolation of data from digital images obtained via tomography of individual patient's bones. Individually tailored prosthesis designed to fit particular patient requirements as accurately as possible should result in more successful reconstruction, enable better planning before surgery and consequently fewer complications during surgery. Fast and accurate design and manufacture of personalized prosthesis for surgical use in bone replacement or reconstruction is potentially feasible through the application and integration of several different existing technologies, which are each at different stages of maturity. Initial case study experiments have been undertaken to validate the research concepts by making dimensional comparisons between a bone and a virtual model produced using the proposed methodology. Future research directions are discussed in the final section of this paper.

关键词： Geometric modeling CAD human prosthesis image processing medical information tomography examination

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A New Ergonomics Manikin Generation Method from Real 3D Scanning Body

A New Ergonomics Manikin Generation Method from Real 3D Scan...

引用

International conference on Advanced Mechanical engineering (AME 2010)

作者： Dong, Zhanxun Gu, Zhenyu Wu, Zhanwei Shanghai Jiao Tong Univ Sch Media & Design Shanghai 200030 Peoples R China

ISBN: (纸本)9780878492497

Computer-Aided Ergonomics (CAE) makes it possible that people may build a virtual environment for ergonomics evaluation in the product's digital model phase. Manikin with anthropometry data supplies fundamental information in design lifecycle, so it also plays an important role in CAE software. Thanks to the 3D scanning technology, we developed a new ergonomics manikin generation method which could create free-form surface human model from real body. Generation method concluded body scanning, model optimization, and combining skeleton stages. Finally, case study proved that Paper's method could generate more exact manikin than former parametric modeling methods, and it would benefit customized products design.

关键词： Ergonomics Computer-Aided Ergonomics 3D Scanning manikin

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Toward developing an ontology for K-12 engineering technology education

Toward developing an ontology for K-12 engineering technolog...

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2010 ASEE Annual conference and exposition

作者： Burghardt, M. David Hacker, Michael Devries, Marc Rossouw, Ammeret Hofstra University United States Center for Technological Literacy Hofstra University United States University of Technology Delft Netherlands

Hofstra University's Center for Technological Literacy and the University of Technology, Delft, conducted an international research study in the summer of 2009 to identify the most important unifying concepts and disciplinary contexts in K-12 engineering and technology education (ETE). The purpose of the study, titled Concepts and Contexts in engineering and Technology Education (CCETE), was to provide a framework for developing contemporary ETE curricula. The study drew upon the expertise of 30 individuals from nine countries with a broad range of experience in ETE-related domains. These experts included philosophers and historians of technology, journalists, technology teacher educators, and engineering educators. A set of core unifying themes, applicable to all technological fields, emerged from this study and gave insight into the nature of engineering as a holistic endeavor. The themes are design (e.g., optimization, trade-offs, specifications), modeling (e.g., representation and prediction), systems (e.g., function, structure), resources (e.g., materials, energy, information), and human values (e.g., sustainability, innovation, risk, failure, social interaction). In addition, a set of technological contexts emerged. Situated in the belief that K-12 ETE should address issues that support a sustainable world, these contexts include food (e.g., agriculture, biotechnology), shelter (e.g., construction), water (e.g., supply and quality), energy, mobility (e.g., transportation), production, health (e.g., medical technologies), security, and communication. Further refinement indicated that when developing a curriculum, the contexts should be elaborated in two directions: a "personal concern" or "daily life practice" direction and a "global concern" direction. © American Society for engineering Education, 2010.

关键词： Curricula

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Research for 3D digital Analysis Model Applied in Anatomic Medicine

Research for 3D Digital Analysis Model Applied in Anatomic M...

引用

International conference on Biomedical engineering and Computer Science (ICBECS)

作者： Zhibin Xie Wenwen Jiang Faculty of Mechanical Engineering and Mechanics Ningbo University NBU Ningbo China Faculty of Medicine Ningbo University NBU Ningbo China

This article adopts methods of CAD, manufacture modeling and building NURBS digital human analysis model to research the characteristics and technology development trend of digital human model as well as the appliance of CAD modeling technique in *** revealed 3D digital analysis human model had been provided with super-realist characteristic which pursues and embodies real specimen of human body, technology ability of virtual reality and technology extensibility which needs profound professional design. The results indicate that crossed appliance of CAD in anatomic medicine can exactly,efficiently and properly satisfy customization desire of patient whose personality characteristic is marked.

关键词： humans Biological system modeling Home appliances design automation Computer aided manufacturing Virtual manufacturing Spline Surface topography Surface reconstruction Virtual reality

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Uncooled infrared development for small unmanned aerial vehicles

Uncooled infrared development for small unmanned aerial vehi...

引用

conference on Infrared Technology and Applications XXXVI

作者： Pitt, Timothy S. Wood, Sam B. Waddle, Caleb E. Edwards, William D. Yeske, Ben S. USA Aviat & Missile Res Dev & Engn Ctr Redstone Arsenal AL USA Dynetics Inc Huntsville AL USA

ISBN: (纸本)9780819481245

The US Army Aviation and Missile Research, Development, and engineering Center (AMRDEC) is developing a micro-uncooled infrared (IR) capability for small unmanned aerial systems (SUAS). In 2007, AMRDEC procured several uncooled microbolometers for lab and field test evaluations, and static tower tests involving specific target sets confirmed initial modeling and simulation predictions. With these promising results, AMRDEC procured two captive flight test (CFT) vehicles and, in 2008, completed numerous captive flights to capture imagery with the micro-uncooled infrared sensors. Several test configurations were used to build a comprehensive data set. These configurations included variations in look-down angles, fields of view (FOV), environments, altitudes, and target scenarios. Data collected during these field tests is also being used to develop human tracking algorithms and image stabilization software by other AMRDEC personnel. Details of these ongoing efforts will be presented in this paper and will include: 1) onboard digital data recording capabilities;2) analog data links for visual verification of imagery;3) sensor packaging and design;which include both infrared and visible cameras;4) field test and data collection results;5) future plans;6) potential applications. Finally, AMRDEC has recently acquired a 17 mu m pitch detector array. The paper will include plans to test both 17 mu m and 25 mu m microbolometer technologies simultaneously in a side-by-side captive flight comparison.

关键词： Cameras Sensors Infrared radiation Systems modeling Algorithm development Computing systems Infrared sensors Microbolometers Neodymium NVThermIP

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Researches on digital Industrial design System and Its Application on Air Nailer design Process

Researches on Digital Industrial Design System and Its Appli...

引用

2010 International conference on Measuring Technology and Mechatronics Automation(ICMTMA 2010)(2010年检测技术与机电自动化国际会议)

作者： Xianfeng Jiang Junyuan Li Lei Liu Mechanical Engineering Institute Zhejiang University of Technology Hangzhou Zhejiang Prov. 310014 China

ISBN: (纸本)9781424450015;9780769539621

With the combination of the industrial design activity and digital technique, a digital Industrial design System is established, with which digital product design evaluation and product digital simulation technologies are integrated into. The human-machine analysis and engineering analysis methods are imported when the modeling results have been finished to give the designer the means to make the design results more reasonable. The system framework and architecture of the digital industrial design system are presented. The application of the digital industrial design system for the air nailer design make the improvement of the means of the air nailer industrial design. With which, the layout design of the air nailer design is ameliorated with the former design instances and the product functional requirements. The former design and color design goes along with the database system. The reasonableness of the design on the various stages is acquired together with the use of digital simulation means. For the modeling result of the air nailer's body will be affecting the comprehensive performance such as the product nailing force, nailing efficiency and product strength directly, the stress of the body of the air nailer and the air flow characteristic within the cylinder are analyzed in order to improve the modeling design result. The digital industrial design system platform of the air nailer design is developed under the support of the Zhejiang province momentous science and technology project and the system is of good effect for the air nailer design.

关键词： digital industrial design digital simulation air nailer development industrial design process

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Three phase linear permanent magnet energy scavenger based on foot horizontal motion

Three phase linear permanent magnet energy scavenger based o...

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Annual IEEE conference on Applied Power Electronics conference and exposition (APEC)

作者： Igor Stamenkovic Nikola Milivojevic Cong Zheng Alireza Khaligh Energy Harvesting and Renewable Energies Laboratory (EHREL) Electrical and Computer Engineering Department (ECE) Illinois Institute of Technology Chicago IL USA

Energy scavenging from human body motion is gaining more attention. Most of research in energy harvesting from foot motion has focused on heel strike and foot vertical motion. This paper presents a linear electric machine topology and power electronic converter for energy harvesting from horizontal foot movement. Micro level aspect of the whole system makes generator topology unconventional. Therefore, design methodology comprises numerical and analytical modelling. Numerical analysis is based on comprehensive three dimensional finite element analysis (FEA), which provides possibilities for inclusive optimizations presented in this paper. Final results demonstrate that the proposed generator topology is a promising candidate for energy scavenging applications from human foot motion.

关键词： Permanent magnets Foot humans Circuit topology Electric machines Power electronics design methodology Analytical models Numerical models Power system modeling

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Three axes full servo robotics design and application

Three axes full servo robotics design and application

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International conference on Computer Application and System modeling (ICCASM)

作者： Yali Tan Ke Song Miao Shen Department of Electronic & Information Engineering Xi'an JiaoTong University City College Xi'an China NO.16 Research Institute of NO.9 Academy China Aerospace Science and Technology Corporation Xi'an China

This paper presents a new design of three axis full servo robot. The detailed design work includes the mechanical structure design with three mutual perpendicular arms. All axes of this robotics are driven by AC synchronous servo motor. Based on such a mechanical structure, the electrical system with DSP and the programmable logic device (CPLD) is designed. DSP of TI TMSF2812 is used to achieve digital signal processing and human to machine interface. The CPLD is used to run logic calculation and trajectory planning. Experiment shows that the robot could precisely move following an pre-designed locus with high speed and accuracy in the three-dimensional space.

关键词： Servomotors Service robots Robot control Programming Manipulators Interpolation

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