stochastic differential equations for structural engineering
Transcript
stochastic differential equations for structural engineering
Department of Civil and Environmental Engineering Ph.D. programme in Structural, Seismic and Geotechnical Engineering ACADEMIC YEAR 2016 – 2017 STOCHASTIC DIFFERENTIAL EQUATIONS FOR STRUCTURAL ENGINEERING Held by Prof. Claudio Floris COURSE DESCRIPTION - Theory of the stochastic processes with emphasis to the process calculus. Itô's and Stratonovich's integrals, Wong-Zakai's corrective terms. Classic stochastic differential equations (SDE): Brownian motion, scalar SDE's (generalized Langevin equations), multidimensional SDE's. Fokker-PlanckKolmogorov's differential equation and Kolmogorov backward differential equation, solutions in the transient regime and at the equilibrium. - Examples relevant for the Structural Engineering: the stochastic second order oscillator with external or parametric excitation, the seismic and wind excitation; the continuous beam modelled as a s.d.o.f. system; the Duffing oscillator as model of a beam or a plate with second order effects. - Approximate methods for the statistical characterization of the solution X(t) or X(t) of an SDE: equivalent linearization, moment equation approach, stochastic averaging. Bibliography: - Arnold L., Stochastic Differential Equations: Theory and Applications, Wiley Interscience - Di Paola M., Stochastic Differential Calculus. In: F. Casciati (Editor) Dynamic Motion: Chaotic and Stochastic Behaviour, Springer Verlag, Wien, 1993, pp. 29-92 Politecnico di Milano Department of Civil and Environmental Engineering Piazza Leonardo da Vinci, 32 20133 Milano Tel. 02 2399 4322 Fax 02 2399 4300 [email protected] Partita Iva: 04376620151 Codice fiscale: 80057930150 - Lin Y.K., Cai G.Q. Probabilistic Structural Dynamics: Advanced Theory and Applications, McGraw-Hill - Muscolino G., Dinamica delle Strutture, Pitagora - Papoulis A., Probability, Random Variables, and Stochastic Processes, McGraw-Hill. - Soong T.T., Grigoriu M., Random Vibration of Mechanical and Structural Systems, Prentice Hall - Wong E., Stochastic Processes in Information and Dynamical Systems, McGraw-Hill Teaching activities: - 25 hours (laboratory and classes) - From November to December 2016