STOCAL-II-An Instructional Software for Random Vibrations

by Chih-Dao Wung, Univ of California, United States,
Armen Der Kiureghian, Univ of California, United States,

Document Type: Proceeding Paper

Part of: Probabilistic Methods in Civil Engineering


STOCAL-II (Computer Assisted Learning of STOchastic methods) is an instructional software for teaching random vibrations and applied stochastic processes. It is based on and is an extension of the well-known deterministic instructional software, CAL, which has facilities for matrix operations and for static and dynamic structural analysis, including static condensation and eigenvalue solution. STOCAL-II works both interactively and in batch mode, and has on-line graphics capability. It consists of more than 30 commands for stochastic analysis (in addition to the CAL commands), which are in four groups: (1) generation and estimation of random variables and processes, (2) frequency-time domain transformation, (3) stationary and nonstationary response of linear systems, and (4) statistics of extremes of stationary random processes. The commands are structured so as to enhance the instructional aspects of the operations rather than their efficiency. The software works on IBM-PC/XT or AT microcomptuers.

Subject Headings: Stochastic processes | Computer software | Dynamic structural analysis | Vibration | Static structural analysis | Stationary processes | Computing in civil engineering

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