Results 211 to 220 of about 29,683 (252)
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Symbolic numerical computational tools for nonlinear and adaptive control
Proceedings of IEEE Symposium on Computer-Aided Control Systems Design (CACSD), 2002We describe a symbolic computer algebra system (CAS) toolbox for nonlinear and adaptive control law synthesis and simulation. This Mathematica program provides functions for basic mathematical operations frequently encountered in analysis of nonlinear systems, implements algorithms for adaptive and approximate nonlinear control as well as provides ...
V. Polyakov +2 more
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Numerical optimization in hybrid symbolic-numeric computation
Proceedings of the 2007 international workshop on Symbolic-numeric computation, 2007Approximate symbolic computation problems can be formulated as constrained or unconstrained optimization problems, for example: GCD [3,8,12,13,23], factorization [5,10], and polynomial system solving [2,25,29]. We exploit the special structure of these optimization problems, and show how to design efficient and stable hybrid symbolic-numeric algorithms
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SSRN Electronic Journal, 2021
Abstract A wide range of mechanical systems have gaps, cracks, intermittent contact or other geometrical discontinuities while simultaneously experiencing Coulomb friction. A piecewise linear model with discontinuous force elements is discussed in this paper that has the capability to accurately emulate the behavior of such mechanical ...
Amir Shahhosseini +2 more
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Abstract A wide range of mechanical systems have gaps, cracks, intermittent contact or other geometrical discontinuities while simultaneously experiencing Coulomb friction. A piecewise linear model with discontinuous force elements is discussed in this paper that has the capability to accurately emulate the behavior of such mechanical ...
Amir Shahhosseini +2 more
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Scientific computation: The integration of symbolic, numeric and graphic computation
1985It is a commonplace, that the use of mathematical software is in the process of influencing, if not shaping, the working style of the mathematician, physicist and engineer. Considerable effort has been put into the creation of integrated systems by various groups.
E. Engeler, R. Mäder
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Symbolic—numerical computations in the stability analyses of difference schemes
Proceedings of the international symposium on Symbolic and algebraic computation, 1990We propose a number of symbolic-numeric approaches to the computer aided construction of the stability domains of difference schemes approximating the partial differential equations with constant coefficients. We use the Fourier method, the algebraic methods of the Routh-Hurwitz and Schur-Cohn theories for the localization of the polynomial zeros, the ...
S. I. Mazurik, E. V. Vorozhtsov
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A Symbolic-Numerical Support for Computer-Aided Modelling
1988Recently a great attention has been paid to Computer Aided Control Systems Design (CACSD) (see [3,6]). This new area covers such trends as specialized control-oriented Computer Aided Design (CAD), knowledge-based support of the creative processes, symbolic computer calculations and interactive man-machine dialog based on a user-friendly communication ...
A. Ligȩza, M. Szymkat
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Mixed symbolic–numerical computations with general DAEs II: An applications case study
Numerical Algorithms, 1998The analysis of traveling wave solutions to implicit PDEs, which connect two equilibria, is considered. Using the structure of the traveling wave solution yields a DAE. To illustrate this, the dissipative magnetohydrodynamics equations (MHD) with resistivity, viscosity, and thermal conductivity is discussed. Applying the results from \textit{S.
Campbell, Stephen L., Marszalek, Wieslaw
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Analyzing Bilinear Systems Using a New Hybrid Symbolic-Numeric Computational Method
Journal of Vibration and Acoustics, 2019In this paper, an efficient and accurate computational method for determining responses of high-dimensional bilinear systems is developed. Predicting the dynamics of bilinear systems is computationally challenging since the piecewise-linear nonlinearity induced by contact eliminates the use of efficient linear analysis techniques. The new method, which
Meng-Hsuan Tien, Kiran D'Souza
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A symbolic-numerical method for computing approximate parameterizations of canal surfaces
Computer-Aided Design, 2012A canal surface is the envelope of a one-parameter family of spheres centered at the spine curve m ( t ) and with the radii described by the function r ( t ) . It was proved in Peternell and Pottmann (1997)?9] that any canal surface to a rational spine curve and a rational radius function possesses a rational parameterization.
Michal Bizzarri, Miroslav Lávička
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A Hybrid Symbolic-Numeric Computational Method for Analysis of Bilinear Systems
Volume 8: 30th Conference on Mechanical Vibration and Noise, 2018In this paper, an efficient and accurate computational method for determining responses of high-dimensional bilinear systems is developed. Predicting the dynamics of bilinear systems is computationally challenging since the piecewise-linear nonlinearity induced by contact eliminates the use of efficient linear analysis techniques. The new method, which
Meng-Hsuan Tien, Kiran D’Souza
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