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Constraint mechanisms for knowledge acquisition from computer-aided design data
Artificial Intelligence for Engineering Design, Analysis and Manufacturing, 1993A number of automated reasoning systems find their basis in process control engineering. These programs are often model-based and use individual frames to represent component functionality. This representation scheme allows the process system to be dynamically monitored and controlled as the reasoning system need only simulate the behavior of the ...
Myler, Harley R. +2 more
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Constraint languages for computer aided design
ACM SIGDA Newsletter, 1985In a typical algorithmic language such as Fortran or Pascal a program is a sequence of steps for the language interpreter to follow to achieve a desired result. In a constraint language a program is a set of relationships, called constraints, that describe the desired result.
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Constraint Procedures for Computer Aided Design
IFAC Proceedings Volumes, 2000Abstract The nature of creative design makes it impossible to fully define all the design requirements before the activity commences. The process is goal directed in which an understanding of the problems emerge as the activity advances. This aspect of design is thus considered to be aligned to problem solving strategies, in which search techniques ...
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Computer aided molecular and mixture design with specified property constraints
Fluid Phase Equilibria, 1993Abstract A general methodology for computer aided molecular and mixture design with specified property constraints has been developed. This methodology decouples the problem of generation of molecular structures from the problem of determination of the optimal design.
R. Gani, Aa. Fredenslund
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A methodology and a tool for the computer aided design with constraints of electrical devices
IEEE Transactions on Magnetics, 1996A methodology for the computer aided constrained design of electrical devices is presented and validated through the design of a slotless permanent magnet structure. It is based on the use of the analytical design equations of the device. Symbolic calculation is widely used to generate an analysis program and a sensitivity computation program.
F. Wurtz, J. Bigeon, C. Poirson
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Computer Aided Design of Multi-Level Systems with Prescribed Structure and Control Constraints
IFAC Proceedings Volumes, 1979Abstract In this paper two hierarchical control algorithms (P and PI) for linear discrete-time interconnected systems are presented. At the first level minimization of local performance indexes is done and at the level 2 - coordination, based on a gradient procedure. The algorithms presented satisfy constraints impased on the control components. They
J.D. Zaprjanov, S.B. Boeva
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Computer Aided Design of Optimal Decentralized Controllers Under Control Path Constraints
IFAC Proceedings Volumes, 1983Abstract A class of optimal control problems which is mainly characterized by a set of path constraints on the control variables is presented in this paper. After having transformed the original infinite set of constraints into a finite one, a solution of the stated problem is found by following a Parameter Optimization Approach.
A. Locatelli +3 more
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Stability constraints used in computer-aided design of recursive digital filters
IEEE Transactions on Acoustics, Speech, and Signal Processing, 1974Some recent papers on digital filter design have been concerned with the use of unconstrained minimization techniques, such as the Fletcher-Powell algorithm, to optimize the design to a prescribed frequency domain description. This paper looks, in detail, into the use of two variable substitution methods to bound the poles and zeros of the filter for ...
G. Jullien, M. Sid-Ahmed
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Computer aided software design via inference and constraint propagation
Integrated Computer-Aided Engineering, 2009Engineered systems, including computer programs, are mainly composed of versions of known components. We describe systems that produce computer software by composition and specialization of generic software components. The work of the human designer is reduced because components can infer or default many specifications, propagating them to connected ...
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Medical Informatics, 1981
For many years, physiological investigations have utilized the power and speed of analogue, digital and hybrid computers. Complex protocols often require the recording of large amounts of data in short periods, typically with simultaneous fine control of multiple experimental variables.
S W, Huntley +3 more
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For many years, physiological investigations have utilized the power and speed of analogue, digital and hybrid computers. Complex protocols often require the recording of large amounts of data in short periods, typically with simultaneous fine control of multiple experimental variables.
S W, Huntley +3 more
openaire +2 more sources