The NSF digital Clay project is focused on the design, prototyping, integration, and validation of a computercontrolled physical device capable of taking any of a wide range of possible shapes in response to changes i...
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This paper gives an overview of the current design process of BMW and the application of human models within this process. A distinction is made concerning 21/2D and 3D methodologies and their applicability in the ove...
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This paper describes a new approach to automate the classification of solid models using machine learning techniques. Existing approaches, based on group technology, fixed matching algorithms or pre-defined feature se...
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This paper describes a new approach to automate the classification of solid models using machine learning techniques. Existing approaches, based on group technology, fixed matching algorithms or pre-defined feature sets, impose a priori categorization schemes on engineering data or require significant human labeling of design data. This paper describes a shape learning algorithm and a general technique for "teaching" the algorithm to identify new or hidden classifications that are relevant in many engineering applications. In this way, the core shape learning algorithm can be used to find a wide variety of model classifications based on user input and training data. This allows for great flexibility in search and data mining of engineering data.
It is commonly known that in an automotive manufacturing assembly line several workers perform either a common task or a number of different tasks simultaneously, and there is a need to represent such a multi-worker o...
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The objective of this ongoing research project is to link IPME (Integrated Performance modeling Environment) and SAFEWORK to provide a holistic environment in which to view simulated humans operating in their proposed...
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This correspondence presents the basic design and the simulation of a low level multilayer vision processor that emulates to some degree the functional behavior of a human retina. This retina-like multilayer processor...
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This correspondence presents the basic design and the simulation of a low level multilayer vision processor that emulates to some degree the functional behavior of a human retina. This retina-like multilayer processor is the lower part of an autonomous self-organized vision system, called Kydon, that could be used on visually impaired people with a damaged visual cerebral cortex. The Kydon vision system, however, is not presented in this paper. The retina-like processor consists of four major layers, where each of them is an array processor based on hexagonal, autonomous processing elements that perform a certain set of low level vision tasks, such as smoothing and light adaptation, edge detection, segmentation, line recognition and region-graph generation. At each layer, the array processor is a 2D array of k/spl times/m hexagonal identical autonomous cells that simultaneously execute certain low level vision tasks. Thus, the hardware design and the simulation at the transistor level of the processing elements (PEs) of the retina-like processor and its simulated functionality with illustrative examples are provided in this paper.
This paper presents mathematical models of thermal interactions among an automobile passenger, the cabin environment, and a heated/ventilated seat. The model, which has the ability to predict the transient response of...
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An approach aimed at improving the safety of a given system with operators in the loop may get advantages from building a mathematical descriptive model of human activity. This includes modeling the discrepancies so a...
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A new realistic motion control algorithm for digitalhuman models is presented in this paper based on the principle of effort minimization. The proposed algorithm is developed through an innovative mathematical model ...
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In this paper we described a new and innovative maintainability-engineering tool being developed by GEGRC, AFRL and Lockheed Martin (LM). The tool employs modeling, simulation, information composition and virtual prot...
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ISBN:
(纸本)0780377176
In this paper we described a new and innovative maintainability-engineering tool being developed by GEGRC, AFRL and Lockheed Martin (LM). The tool employs modeling, simulation, information composition and virtual prototyping to allow an easier analysis of service related issues early in the design. The resulting coupling of the design and service data promote a concurrent development of preliminary designs and maintenance manuals, resulting in a truly maintenance oriented design approach. The prototype tool is in development and will be beta-tested on several commercial and military systems. Implementation challenges discussed include a need for user-defined constraints on the disassembly planner and difficulties mapping design data to domain information: Future directions for this research will examine using the technology for maintenance task analysis, change impact analysis and job-level work scope planning. Finally, we described an implementation strategy for technology transition including an initial Illustrated Parts Catalogue (IPC) generation capability and maintainability studies on components of the GE Joint Strike Fighter (JSF) as well as other GE engines.
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