Efficient transient analysis for large locally nonlinear structures
Abstract
A general and exact theory for transient structural synthesis
is extended to address structural systems with an arbitrary
number of localized sources of structural dynamic nonlinearity.
The formulation is independent of model size, in that only
those model degrees-of-freedom of interest need be retained
in the synthesis. The theory provides for the efficient calculation
of nonlinear transient response due to externally applied
loads and prescribed base motions. The theory can function
as a substructure coupling and structural modification procedure
allowing structural nonlinearities to be isolated from
the remaining linear substructures, which are solved once.
The nonlinear synthesis in effect installs the nonlinear elements
and calculates the nonlinear transient response. An example
demonstrate the order of magnitude decrease in time
required, as compared to traditional direct integration.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.Collections
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