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Beam Model
100
0
Exact1
IDRK−SLS
ISVDDRK−SLS
−100
−200
10 −2
10 0
10 2
10 4
Frequency (Hz)
Beam Model
100
0
Exact2
IDRK−SLS
ISVDDRK−SLS
−100
−200
10 −2
10 0
10 2
10 4
Frequency (Hz)
Fig. 25 Largest singular value of the frequency response of the original switched system of order
(348) and reduces systems of order (24) to a frequency range with IDRK-SLS and ISVDDRK-SLS
methods
Singular Values of the Error Sy stem
100
IDRK−SLS
ISVDDRK−SLS
0
−100
−200
10 −2
10 0
10 2
10 4
Frequency (Hz)
Singular Values of the Error System
100
0
−100
IDRK−SLS
ISVDDRK−SLS
−200
10 −4
10 −2
10 0
10 2
10 4
Frequency (Hz)
Fig. 26 Absolute error system between original switched system (beam of order 348) and the
reduces systems of order (24) with IDRK-SLS and ISVDDRK-SLS methods
The Fig. 26 presents the variation of the absolute error between the original
system (BEAM of order 348) and reduces systems (of order 24), note that the best
result is obtained by the ISVDDRK-SLS method.
Table 4 contains a comparison between the iterative DRK-SLS and iterative
SVDDRK-SLS methods, determining for each method the H 1 Error, the CPU-Time
 
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