Professor Spanos' research efforts focus on the dynamics and vibrations of structural and mechanical systems under a variety of loads. Systems exhibiting nonlinear behavior and/or exposed to hazard/risk inducing conditions receive particular attention. His group is also interested in mechanical properties and fatigue/fracture issues of modern (nanocomposites, etc.) materials, and in signal processing algorithms for dynamic effects in biomedical applications. Professor Spanos develops primarily analytic and numerical methods that often require advanced scientific computation packages and supercomputers. The mathematical models used involve deterministic and stochastic differential/difference equations that are often incorporated in finite element and other numerical codes, and in many design procedures. Also, Monte Carlo random simulation approaches are developed/used along with advanced techniques for signal processing and safety assessment involving digital filters and wavelets/chirplets transforms. Solution techniques developed by Professor Spanos are applied to diverse themes such as vehicle and robot dynamics; estimation of seismic spectra; flow-induced vibrations of offshore rigs, marine risers, and pipelines; certification of payloads for space station missions; directional oil well drilling; vibration and aseismic protection of structures and equipment; wind loads simulation; and signal processing for electrocardiograms, electroencephalograms, and bone mechanics.
Publications/Creative Works
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