论文信息 - Uncertainty propagation in complex modes based Component Mode Synthesis

Uncertainty propagation in complex modes based Component Mode Synthesis

Monte Carlo analyses are usually performed in order to characterize the uncertainty in system structural dynamic responses. In this context, Component Mode Synthesis may be used to speed up the Monte Carlo computation time. When non-proportional damping is present in the system being modelled, it is necessary to introduce complex modes in the formulation to correctly account for the damping. This work presents a method for uncertainty propagation in complex modes based Component Mode Synthesis models for systems with uncertain damping.

[1] Christophe Pierre,et al. BASEBAND METHODS OF COMPONENT MODE SYNTHESIS FOR NON-PROPORTIONALLY DAMPED SYSTEMS , 2003 .

[2] R. Craig,et al. Component mode synthesis for model order reduction of nonclassicallydamped systems , 1989 .

[3] Brian R. Mace,et al. A LOCAL MODAL/PERTURBATIONAL METHOD FOR ESTIMATING FREQUENCY RESPONSE STATISTICS OF BUILT-UP STRUCTURES WITH UNCERTAIN PROPERTIES , 2001 .

[4] Timothy P. Waters,et al. Component mode synthesis as a framework for uncertainty analysis , 2009 .

[5] R. Fox,et al. Rates of change of eigenvalues and eigenvectors. , 1968 .

[6] M. Bampton,et al. Coupling of substructures for dynamic analyses. , 1968 .

[7] R. Craig,et al. Free-interface methods of substructure coupling for dynamic analysis , 1976 .

[8] S. Adhiakri. Rates of Change of Eigenvalues and Eigenvectors in Damped Dynamic System , 1999 .

[9] Atul Bhaskar,et al. Rayleigh's classical sensitivity analysis extended to damped and gyroscopic systems , 1997 .

[10] Neil Ferguson,et al. Uncertainty propagation in locally damped dynamic systems , 2012 .

[11] S. Adhikari. Rates of change of eigenvalues and eigenvectors in damped dynamic system , 1999 .