Analysis of an engine frame subjected to large imbalance loads
2009 (English)Independent thesis Advanced level (professional degree), 20 credits / 30 HE credits
Student thesis
Abstract [en]
This master thesis deals with the load carrying capability of a turbine exhaust case subjected to large imbalance loads. The event is transient dynamic to its nature and displays non-linear features such as plasticity and large deflections. The main result sought is the ultimate load to which structural integrity can be guaranteed. Results are compared between dynamic and quasi-static analyses and the methods are evaluated. The ability to overcome computational difficulties and the solver time are compared between three finite element solvers. Abaqus/Explicit is compared to LS-DYNA in dynamic analysis and Abaqus/Standard is compared to ANSYS in quasi-static analysis. The results show consistency between analysis methods and solvers. LS-DYNA is faster than Abaqus/Explicit and Abaqus/Standard is faster than ANSYS for the simulations performed in this thesis.
Place, publisher, year, edition, pages
2009.
Keywords [en]
Technology, FEM, Finite element method, Buckling analysis, turbine, exhaust case, TEC, TRF, Abaqus, LS-DYNA, ANSYS
Keywords [sv]
Teknik
Identifiers
URN: urn:nbn:se:ltu:diva-48689ISRN: LTU-EX--09/062--SELocal ID: 61d8c234-8a7f-4365-a0f0-ea22c6858fbcOAI: oai:DiVA.org:ltu-48689DiVA, id: diva2:1022033
Subject / course
Student thesis, at least 30 credits
Educational program
Mechanical Engineering, master's level
Examiners
Note
Validerat; 20101217 (root)
2016-10-042016-10-04Bibliographically approved