Abstract
AbstractThe aim of this paper is to investigate the modal characteristics and harmonic response of two lattice-based configuration called octet truss and cubic lattice in order to find out their suitability for use in turbine blades and other high speed rotating components. Solid model is used as reference. Lattice structures offer great flexibility and opportunities to the designers for providing high strength and lightweight structures compared to solid structures. Results indicate that lattice structures have natural frequency lower than solid. For cubic structure, natural frequencies are much lower which is undesirable as it limits the operating speed. Octet truss results are much better and more comparable to solid. Harmonic response results indicate that octet truss model’s maximum deformation is 3.1 times less compared to the solid and von Mises stress is 3 times less compared to the solid model with similar dimensions and boundary conditions. However cubic lattice has 36 times higher deformation and 33 times higher von Mises stress compared to solid model. Hence it can be implied that octet truss structure can be a good replacement of solid rotating components such as turbine blades as they offer better dynamic response with lighter weight.KeywordsLattice structureModal analysisHarmonic responseOctet trussCubic lattice
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
