Optimal design of nonlinear shock isolation for large, locally nonlinear structural systems
Durant, Brian R.
Joshua H. Gordis.
MetadataShow full item record
The method of Time Domain Structural Synthesis is reviewed and examples of linear structural modification and sub-structure coupling are presented. The general formulation for both linear and nonlinear syntheses are compared to highlight the similarities between the two and the difficulties experienced with the introduction of nonlinear elements. Examples of linear and nonlinear sub-structural coupling are presented to emphasize the similarity of the procedures used. Finally, a general approach for the optimal design of nonlinear shock isolation for large structural systems is developed. The repeated solution of arbitrarily large finite element models with localized nonlinear components is made possible through the use of a highly efficient nonlinear transient re-analysis procedure. The method has demonstrated order of magnitude decreases in compute time over traditional direct integration methods and is exact, regardless of the nature of the isolation. An example is included which demonstrates the procedure.
Showing items related by title, author, creator and subject.
Gilchrist, Richard B. (Cambridge, Massachusetts: Massachusetts Institute of Technology, 1964-01);Dynamic programming is employed to obtain a solution to the problem of controlling a nonlinear system in an optimal fashion, subject to a quadratic performance index. The technique sued is similar to that given by Merriam ...
Identification and control of non-linear time-varying dynamical systems using artificial neural networks Dror, Shahar (Monterey, California. Naval Postgraduate School, 1992-09);Identification and control of non-linear dynamical systems is a very complex task which requires new methods of approaching. This research addresses the problem of emulation and control via the use of distributed parallel ...
Recursive block-by-block integral equation solution for transient dynamic analysis with memory-type elements Jarque, Al V. (2001-03);An efficient method of computing structural response of multi-story nonlinear base isolated buildings for a given seismic event is presented. Using a recursive block-by-block convolution (RBBIEF) solution to the governing ...