This paper presents a general computational tool for determining the near-optimal trajectories of linear, lumped parameter, dynamic systems subjected to linear constraints. In the proposed approach each state variable is approximated by the sum of a third-order polynomial and a finite term Fourier-t
Linearly constrained global optimization via piecewise-linear approximation
β Scribed by Hao Zhang; Shuning Wang
- Publisher
- Elsevier Science
- Year
- 2008
- Tongue
- English
- Weight
- 312 KB
- Volume
- 214
- Category
- Article
- ISSN
- 0377-0427
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β¦ Synopsis
This paper considers the problem of optimizing a continuous nonlinear objective function subject to linear constraints via a piecewise-linear approximation. A systematic approach is proposed, which uses a lattice piecewise-linear model to approximate the nonlinear objective function on a simplicial partition and determines an approximately globally optimal solution by solving a set of standard linear programs. The new approach is applicable to any continuous objective function rather than to separable ones only and could be useful to treat more complex nonlinear problems. A numerical example is given to illustrate the practicability.
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