NEHRP Clearinghouse
- Title
- Program EXKAL2 for Identification of Structural Dynamic Systems.
- File
- PB90109877.pdf
- Author(s)
- Maruyama, O.; Yun, C. B.; Hoshiya, M.; Shinozuka, M.
- Source
- National Science Foundation, Washington, DC., May 19, 1989, 176 p.
- Identifying Number(s)
- NCEER-89-0014
- Abstract
- In the report, a computer program, EXKAL2, which has been developed for the identification of structural dynamic systems subjected to earthquake loading is documented. The estimation of the structural parameters is carried out by using the extended Kalman filtering technique with a weighted global iteration procedure. The program can be used for the identification of the modal properties of a linear multi-degree-of-freedom structure and for the estimation of the structural parameters of a nonlinear single-degree-of-freedom system. The theoretical background, program descriptions and user's guide are given. Numerical analyses are given for five different example cases. Fortran listings of program EXKAL2 and SRESP (for generating simulated records for response observations) are shown in the appendices. Example input and output data files are also listed in the appendices.
- Keywords
- Kalman filters; Input output processing; Earthquake resistant structures; Dynamic loads; Modal response; Systems engineering; EXKAL2 program; Computer applications; Dynamic structural analysis; Graphs (Charts); Computer programs; Earthquakes; User manuals (Computer programs)