Surrogate model reduction for linear dynamic systems based on a frequency domain modal analysis

2015 ◽  
Vol 56 (4) ◽  
pp. 709-723 ◽  
Author(s):  
T. Kim
Keyword(s):  
Modal Analysis ◽  
Model Reduction ◽  
Frequency Domain ◽  
Dynamic Systems ◽  
Surrogate Model ◽  
Linear Dynamic Systems ◽  
Linear Dynamic

scholarly journals Dynamic and Sensitivity Analysis General Non-Conservative Asymmetric Mechanical Systems

2018 ◽  
Vol 68 (2) ◽  
pp. 105-124 ◽  
Author(s):  
Milan Žmindák
Keyword(s):  
Sensitivity Analysis ◽  
Modal Analysis ◽  
Dynamic Systems ◽  
Mechanical Systems ◽  
Conservative System ◽  
Eigenvalues And Eigenvectors ◽  
Linear Dynamic Systems ◽  
Discretization Methods ◽  
Linear Dynamic ◽  
Derivatives Of

AbstractIn this paper the concept of generalized form of proportional damping is proposed. Classical modal analysis of non-conservative continua is extended to multi DOF linear dynamic systems with asymmetric matrices. Mode orthogonality relationships have been generalized to non-conservative systems. Several discretization methods of continua are presented. Finally, an expression for derivatives of eigenvalues and eigenvectors of non-conservative system is presented. Examples are provided to illustrate the proposed methods.

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