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Abstract: There is a need for new technology to perform high resolution site characterization in subsea environments to support construction of offshore wind turbine foundations. The size and location of boulders across an offshore wind plot are crucial to the planning phase of these projects. Current site characterization techniques make use of high energy pressure waves in the water column, whic... read moreh are believed to harm the hearing of marine wildlife. In the Tufts Structures Lab an experimental setup has been built to test the use of localized waves with lower energies for conducting subsurface investigations. The electo-mechanical system consists of wave generation devices and transducers interfaced with sand. Two wave generation methods were developed, and responses were recorded by multiple subsurface transducers. Methods were compared based on wave velocities, polarization, and attenuation of energy through a 1-meter diameter tank filled with coarse sand.
Thesis (M.S.)--Tufts University, 2018.
Submitted to the Dept. of Mechanical Engineering.
Advisor: Douglas Matson.
Committee: John Germaine, and Laurie Baise.
Keywords: Mechanical engineering, Civil engineering, and Geophysical engineering.read less
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