Intelligent algorithms for H-optimal placement of actuators and sensors in structural control

Sergey Chemishkian, Ara Arabyan

Research output: Contribution to journalConference article

Abstract

Four algorithms are described to search and find spatial configuration for the placement of a finite number of actuators and sensors on a continuous flexible structure to reduce deformations in the structures to a minimum in H sense. The computational cost of the optimal mapping search is reduced through four techniques. First, the computationally expensive goal function based on the complete H design is replaced by a two-step hybrid function, which performs a computationally inexpensive pass-fail test and proceeds to the complete H design only if the test was passed. Second a target H norm used in the mentioned pass-fail test is adjusted based on the already evaluated mappings in order to increase the number of failed tests and reduce the number of complete H designs. Third, the exhaustive search as the basic search technique is replaced by a more intelligent genetic algorithm. Finally, the search is implemented on a parallel computer. The algorithms are benchmarked for two test cases: a model of a simply supported beam, and a model of the UCLA Large Space Structure.

Original languageEnglish (US)
Pages (from-to)1812-1816
Number of pages5
JournalProceedings of the American Control Conference
Volume3
StatePublished - Dec 1 1999
EventProceedings of the 1999 American Control Conference (99ACC) - San Diego, CA, USA
Duration: Jun 2 1999Jun 4 1999

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ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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