Title :
Model correction for a class of spatio-temporal systems
Author :
Moheimani, S. O Reza ; Heath, William P.
Author_Institution :
Dept. of Electr. & Comput. Eng., Newcastle Univ., NSW, Australia
Abstract :
Modal analysis has been used in modeling of a large number of physical systems such as beams, plates, acoustic enclosures, strings, etc. These models are often simplified by truncating higher frequency terms that lie out of the bandwidth of interest. Truncation can introduce a large error. This paper suggests a method of minimizing the effect of truncated modes on spatial low-frequency dynamics of the system by adding a spatial zero frequency term to the truncated model. The feedthrough term is found such that the spatial H∞ norm of the error system is minimized
Keywords :
H∞ optimisation; errors; minimisation; modal analysis; modelling; acoustic enclosures; beams; error system; feedthrough term; high-frequency term truncation; modal analysis; model correction; physical systems; plates; spatial H∞ norm minimization; spatial low-frequency dynamics; spatial zero frequency term; spatio-temporal systems; strings; truncated mode effect minimization; Acoustic beams; Bandwidth; Boundary conditions; Eigenvalues and eigenfunctions; Frequency; Heat engines; Modal analysis; Partial differential equations; Resistance heating; Temperature control;
Conference_Titel :
American Control Conference, 2000. Proceedings of the 2000
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-5519-9
DOI :
10.1109/ACC.2000.876925
