TY - JOUR

T1 - Frequency window method for strongly coupled and multiply connected structural systems. Multiple-mode windows

AU - Min, K. W.

AU - Igusa, T.

AU - Achenbach, Jan Drewes

PY - 1991/12/1

Y1 - 1991/12/1

N2 - In a companion paper, a method is presented to analyze the dynamic behavior of a structural system consisting of a main structure and strongly coupled, multiply connected substructures. Lagrange's equations are used to develop a characteristic equation for connected substructures in terms of substructure impedances and mobilities. A frequency window method is used to reduce the complexity of the problem by a decomposition of the impedance and mobility functions into dominant and higher-order rational expressions. From the reduced problem, simple expressions for the modal properties are developed using matrix algebraic methods, which provide insight into the resonance characteristics of the connected substructures. One-mode windows were discussed in detail and examples were presented. In the present paper the theory is extended to multiple-mode windows.

AB - In a companion paper, a method is presented to analyze the dynamic behavior of a structural system consisting of a main structure and strongly coupled, multiply connected substructures. Lagrange's equations are used to develop a characteristic equation for connected substructures in terms of substructure impedances and mobilities. A frequency window method is used to reduce the complexity of the problem by a decomposition of the impedance and mobility functions into dominant and higher-order rational expressions. From the reduced problem, simple expressions for the modal properties are developed using matrix algebraic methods, which provide insight into the resonance characteristics of the connected substructures. One-mode windows were discussed in detail and examples were presented. In the present paper the theory is extended to multiple-mode windows.

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M3 - Conference article

AN - SCOPUS:0026392868

SP - 1

EP - 9

JO - American Society of Mechanical Engineers (Paper)

JF - American Society of Mechanical Engineers (Paper)

SN - 0402-1215

T2 - ASME Winter Annual Meeting

Y2 - 1 December 1991 through 6 December 1991

ER -