|James Beck - Caltech (1998-1999)
James Beck is Professor of Applied Mechnics and Civil Engineering, and Executive Officer for these departments, at Caltech. Professor Beck has broad research interests in earthquake engineering and structural dynamics.
Currently his research is focused primarily on the dynamics of structural systems, particularly in dynamic response prediction, model identification and structural health monitoring from vibrational data, and control of vibrational response. To improve earthquake-resistant design, he is also interested in modeling and predicting earthquake loads, damage and monetary losses (repair costs and income loss) that a structure may experience during its lifetime. A characteristic feature of much of his research is that it involves a probability approach to handle the uncertainties involved in structural modeling and excitation modeling for response prediction, structural health modeling, loss estimation and vibration control.
Recent and current research projects include:
-- Efficient stochastic simulation methods for computing first-excursion failure probabilities of dynamical systems subject to uncertain excitation and applications to seismic risk
-- Efficient computational methods for quantifying the effects of uncertainties in a dynamic model of a system on predictions of its response, including robust reliability
-- Stochastic simulation methods for Bayesian updating of structural models and reliability predictions using vibration data, including the case of unidentifiable models
-- Bayesian model class selection methods and an information-theoretic interpretation
-- Methods for probabilistic structural health monitoring (i.e. using vibration data to detect and assess damage in a structure caused by environmental deterioration and severe loading events)
-- Robust control methods using probability distributions over sets of possible models for a structure, with application to vibration control of tall buildings under environmental loads
-- A rational economic basis for performance-based design and mitigation and recovery strategies using predicted net asset value or lifecycle costs for structures