8th European Workshop On Structural Health Monitoring (EWSHM 2016)
5-8 July 2016, Spain, Bilbao
Right Now in Bilbao 13:05 Fri 28
16:00 Tuesday 5. Jul - A1
New generation of flexible risers equipped with motion capture - Morphopipe system
Abstract »Structural dynamic monitoring is a fundamental element for predictive maintenance of structures such as flexible risers, subject to harsh constraints during all their operating lifetime usually over 20 years. The curvature at the topside bend stiffener area is one of the main parameters to measure in order to reduce the uncertainty regarding the remaining service life due to fatigue of the structure. The collaboration between CEA and Technip resulted in a new solution with MEMS accelerometers, through a five years comprehensive development program, called Morphopipe and based on the pioneering works of shape capture developed for twelve years in CEA labs. The flexible riser equipped with the Morphopipe system allows the accurate estimate of the consumed service life that can then minimize loss of production and safety issues. This allows evolution from reactive or periodic to a pro-active condition based-maintenance. The produced data can also be used to increase the uptime of the riser and accelerate decision time through an effective diagnosis and support the life extension study. In this communication, the context, the technology, the algorithms and simulations for validation will be first summarized. In a second part, the industrial integration of the system at manufacturing stage of the flexible riser will be described. Finally, the added values of considering this monitoring system will be presented, including potential associated services.
AuthorsSaguin-Sprynski, Nathalie*Saguin-Sprynski, Nathalie*
Dr. Nathalie Saguin-Sprynski holds a PhD from the University Joseph Fourier of Grenoble in the field of Mathematics and Computer Science in 2007. The thesis work has been made at the CEA-LETI, dealing with reconstructions of curves and surfaces via tangential information in order to solve the problem of shape capture and motion capture via embedded sensors able to provide their orientation. She then joined the Department of Systems at CEA-LETI to go further in the shape capture and its applications. She particularly leads projects in collaboration with industries to provide solutions of shape capture in SHM applications.
FranceCarmona, MikaelCarmona, Mikael
Mikael Carmona was born in Grenoble, France, in 1984. He received the Diploma in engineering from the Institut National Polytechnique de Grenoble, Grenoble, France, in 2007, the B.S. degree in mathematics (Agrégation) from the Université Joseph Fourier de Grenoble, Grenoble, in 2007, and the Ph.D. degree in signal processing from the Institut National Polytechnique de Grenoble in 2011. Since 2011, he has been an Engineer with the Commissariat à l’Energie Atomique et aux Energies Alternatives, Grenoble. He is working on the reconstruction of geometrical and physical parameters from inertial sensors (accelerometers, magnetometers, and gyrometers) and from seismic/acoustic sensors.
FranceJouanet, LaurentJouanet, Laurent
FranceDelcroix, OlivierDelcroix, Olivier
Project development manager in the Riser Integrity Management department of Technip Olivier Delcroix was born in Normandy (France). He joined Technip FlexiFrance in 2005 after training in material and mechanical engineering at l'Ecole Des Mines de Paris. The next five years focused on the design of flexible riser at the R&D center and the technical support to Technip worldwide projects. Since 2010, he has been developing the next retrofit or integrated solutions for monitoring and inspection of flexible risers.
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