A novel environment for test program development will be introduced that supports automatic specification-driven and computer-assisted test parameter acquisition, automatic test program generation and automatic docume...
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An example of an ideal automated assembly process would be as follows: Place all the components in a bag and shake it vigorously until the assembled product is obtained. Such a process requires a minimum amount of inp...
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An example of an ideal automated assembly process would be as follows: Place all the components in a bag and shake it vigorously until the assembled product is obtained. Such a process requires a minimum amount of input infonnation. The shapes of the individual parts would have a significant bearing on the effectiveness of the process. One of the ways of visualising the process would be to numerically simulate its dynamics. What we would ideally like to have is a realistic animation of the individual parts physically interacting with each other. A realistic animation would enable us to iteratively “tweak” the designs of the individual components until we arrive at the optimal set of part designs. In this article we discuss relevant simulation techniques, review existing work and introduce some of our own ideas.
The authors provide an overview of techniques for the specification of complex, heterogeneous systems, i.e. microsystems or automotive control systems including hardware (analog and digital electronics, mechanical or ...
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The authors provide an overview of techniques for the specification of complex, heterogeneous systems, i.e. microsystems or automotive control systems including hardware (analog and digital electronics, mechanical or optical actuators and sensors) and software. An approach to an integrated environment to support and control the requirement definition, specification and system design phases is described. This approach combines behavioral, functional, and data-oriented specifications based on formal languages, as well as knowledge-based concepts for the acquisition of a complete description of the goals, requirements, and constraints related to a system design project. Within this environment, existing commercial specification and system design tools have been integrated into a CAE framework and new tools have been developed to support early requirement definition, specification flow control, early validation of specification, and specification data management.< >
This survey paper is devoted to the description of numerical methods for modern problems of computational fluid dynamics (CFD). The problems of steady and unsteady aerodynamic flows, different transition turbulent reg...
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This survey paper is devoted to the description of numerical methods for modern problems of computational fluid dynamics (CFD). The problems of steady and unsteady aerodynamic flows, different transition turbulent regimes and motion around complex shape bodies (aircraft as a whole) are investigated. These approaches sharply reduce the level of demand on computer resources.
A group of eight U. S. aerospace companies together with several NASA and NAVY centers, led by NASA Ames Systems Analysis Branch, and Virginia Tech’s CAD Laboratory agreed, through the assistance of American Technolo...
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A technique for mapping complex signal processing algorithms on programmable ASIC systems is presented. It integrates data routing into scheduling. An important problem is to cope with deadlocks during scheduling caus...
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A technique for mapping complex signal processing algorithms on programmable ASIC systems is presented. It integrates data routing into scheduling. An important problem is to cope with deadlocks during scheduling caused by limited register resources and fixed interconnect. An algorithm is presented which is able to generate a schedule for a broad class of architectures. It is integrated into a retargetable microcode compiler based on the Cathedral2nd framework. It was tested using an ISDN echo cancelling algorithm.< >
Basic design methods for the class of cellular neural networks (CNNs) with continuous input signals are introduced. The realistic model of CNNs proposed by L.O. Chua and L. Yang (1988) combines components of the Hopfi...
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Basic design methods for the class of cellular neural networks (CNNs) with continuous input signals are introduced. The realistic model of CNNs proposed by L.O. Chua and L. Yang (1988) combines components of the Hopfield-net, cellular automata, and of cellular systems. The CNN design methods integrate special conditions for technical architectures with respect to real-time implementations. Hacijan's polynomial solution method is applied to solve the set of linear inequalities which correspond with the CNN design.< >
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