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Monday, July 8 • 16:50 - 17:10

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Power and signal cables form an integral part of spacecraft and satellite structures which could weigh up to as high as 20% of the total structural mass. Accurate modeling of these cable-harnessed structures has received a lot of attention in the past two decades as the coupling of cable dynamics is observed to play an essential role in the vibration response of these structures. Previous studies have been primarily focused on cables attached to beam-like 1D structures. However, in practice, many of these host structures are better modeled as plate-like geometry. In the present work, we study the dynamics of cable harnessed plate structures using energy equivalence-based homogenization technique. The system consists of a rectangular plate harnessed with multiple parallel cables attached on the top surface in a periodic pattern. The cables are given a pre-tension and assumed to be under tension during vibrations. Strain and kinetic energy expressions are developed using linear displacement field and Green-Lagrange strain tensor. The governing partial differential equations are obtained for an undamped cable-harnessed plate system using Hamilton's principle. The natural frequencies are found for several boundary conditions and are compared with the pristine plate to show the importance of the proposed modeling technique.

avatar for Simon Jones

Simon Jones

Associate Professor, Rose-Hulman Institute of Technology
Professional interests include undergraduate engineering education, finite element modeling, ground-borne vibrations, vibrations of musical instruments, and dynamics of toys.

Guilhem Michon



Monday July 8, 2019 16:50 - 17:10 EDT
St-Laurent 7
  T07 Struct. dyn. & nonlin. vib., RS03 Struct ac & vibr

Attendees (5)