Design of steel energy absorbing restrainers and their incorporation into nuclear power plants for enhanced safety. Volume 1C: Numerical method for dynamic substructure analysis
Abstract
Several numerical methods for the dynamic response analysis of large complex structural systems are presented. The methods presented are primarily concerned with linear dynamic analysis. However, one of the significant results of the research is the development of efficient numerical methods for large systems with a small number of nonlinear members. The technique of dynamic substructure analysis is used to accurately model the behavior of the linear part of the system. This approach allows the behavior of the linear structural members to be reduced to a small number of generalized dynamic coordinates. Those linear dynamic coordinates are then used in direct combination with the nonlinear members to approximate the solution of the large nonlinear problem. The methods presented can be applied to structures of arbitrary geometry. However, the use of techniques such as cyclic symmetry can further decrease the numerical effort.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- June 1980
- Bibcode:
- 1980STIN...8115160D
- Keywords:
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- Dynamic Structural Analysis;
- Nuclear Power Plants;
- Numerical Analysis;
- Dynamic Response;
- Nonlinear Systems;
- Structural Members;
- Substructures;
- Engineering (General)