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It is generally recognized that a composite dynamic impedance method using component frequency response functions obtained experimentally is an effective procedure for analyzing complex dynamic systems extending over a wide frequency range. However, previous attempts to apply composite dynamic impedance methods to analyses of dynamic systems involving multiple connection degrees of freedom for several components have been largely unsuccessful because of numerical error that occurred in the matrix inversion process. In an effort to avoid this problem, researchers at Structural Dynamics Research Corp. have recently proposed an improved composite dynamic impedance method known as SMART, an acronym for System modelling and analysis using the response technique. SMART incorporates the singular value decomposition (SVD) theorem as a numerical technique for reducing error in matrix inversion.