The Riccati transfer matrix method (RTMM) improves the numerical stability of analyzing chain multibody systems with the transfer matrix method for multibody systems (MSTMM). However, for linear tree multibody systems, the recursive relations of the Riccati transfer matrices, especially those for elements with multiple input ends, have not been established yet. Thus, an RTMM formulism for general linear tree multibody systems is formulated based on the transformation of transfer equations and geometrical equations of such elements. The steady-state response under harmonic excitation of a linear tree multibody system is taken as an example and obtained by the proposed method. Comparison with the finite-element method (FEM) validates the proposed method and a numerical example demonstrates that the proposed method has a better numerical stability than the normal MSTMM.
Riccati Transfer Matrix Method for Linear Tree Multibody Systems
Contributed by the Applied Mechanics Division of ASME for publication in the JOURNAL OF APPLIED MECHANICS. Manuscript received August 10, 2016; final manuscript received September 29, 2016; published online October 24, 2016. Editor: Yonggang Huang.
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Gu, J., Rui, X., Zhang, J., Chen, G., and Zhou, Q. (October 24, 2016). "Riccati Transfer Matrix Method for Linear Tree Multibody Systems." ASME. J. Appl. Mech. January 2017; 84(1): 011008. https://doi.org/10.1115/1.4034866
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