Yiannis Constantinides is a Facilities Engineering Advisor of the Chevron Technical Center. He has 23 years of experience in offshore systems. This includes design and analysis of offshore platforms, risers, flowlines, and jumpers; and specialization in hydrodynamics, CFD, and testing. His recent focus has been on supporting jumper and flowline vibrations due to multiphase flow. Part of this effort is the development of relevant structural monitoring technologies and the analytical capability for design and integrity management.