Loading…
This event has ended. Visit the official site or create your own event on Sched.
Welcome to ICSV26!
Back To Schedule
Wednesday, July 10 • 16:10 - 16:30
NUMERICAL SIMULATION OF VIBRATION OF MULTILAYER GRADIENT PYRAMID LATTICE SANDWICH STRUCTURE

Log in to save this to your schedule, view media, leave feedback and see who's attending!

Feedback form is now closed.
Sandwich structures, which consist of two thin, stiff face sheets separated by a lightweight, thicker core, have very important applications in the naval and aerospace industry due to its high specific strength, high specific stiffness and energy absorption capabilities. Lattice sand-wich structures can provide a good prospect for vibration and noise reduction owing to its open topology and design of core configuration. Based on bionic design, a gradient configura-tion of pyramid lattice sandwich structure was proposed in this paper by changing cross-section size of core bars of structures. The relative density of each core layer is changed while the total weight of structures is kept constant. Four multilayer gradient pyramid lattice struc-ture configurations were designed here and five models with different gradient ratio for each configuration were suggested. Commercial finite element software ABAQUS/Explicit was used to simulate vibration of the developed models, and the first to sixth order natural fre-quencies of each model were determined. The vibration characteristics of the gradient lattice sandwich structures were studied by comparative analysis.

Moderators
MJ

Miroslav Janota

Ph.D., Czech Technical University in Prague
avatar for Vadym Kruts

Vadym Kruts

Senior researcher, G.S. Pisarenko Institute for Problems of Strength of the National Academy of Sciences of Ukraine

Authors

Wednesday July 10, 2019 16:10 - 16:30 EDT
St-Laurent 4
  T07 Struct. dyn. & nonlin. vib., RS01 Modal analysis

Attendees (4)