Development of a Titanium Outlet Guide Vane with Honeycomb Core
2015 (English)Independent thesis Basic level (professional degree), 10 credits / 15 HE credits
Student thesis
Abstract [en]
GKN Aerospace Sweden develops and manufactures engine components for the aerospace industry. One of these components is the outlet guide vane (OGV) which, in a set of several, constitutes the mechanical connection between the core structure and fan case of the Fan statics. The aerodynamic application of the OGV is to redirect the airflow from the fan.
An important goal for the aerospace industry is to develop fuel efficient engines with as little carbon dioxide emissions as possible. A weight reduction of the engine is an approach to reach the above mentioned goal. The weight can be reduced by component design or by using a material with a high strength-to-weight ratio.
During this bachelor thesis, the scope was to develop a titanium outlet guide vane with honeycomb core through concept maturation, welding evaluation and strength analysis. The material properties and behavior of the honeycomb panel was investigated through drop weight testing, modal analysis and high cycle fatigue.
The results are summarized in a proposed final concept, referred to as the honeycomb OGV. A comparison between the price of the honeycomb OGV and the present market value of an OGV subjected to lowest loading shows that the honeycomb OGV is currently more expensive. However, the relatively high strength combined with the comparatively high cost makes the honeycomb OGV suitable for placement in the part of the Fan statics subjected to highest loading.
The welding processes evaluation showed that resistance welding and laser beam welding are two joining methods for joining of the honeycomb OGV.
The honeycomb panels have shown a remarkable high strength throughout the practical tests and can therefore be considered as an interesting alternative in lightweight and high strength designs.
Place, publisher, year, edition, pages
2015. , p. 100
Keywords [en]
OGV, honeycomb, titanium, welding, mechanical properties, concept study, FEA, lightweight, aerospace
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:hv:diva-7689Local ID: EXC580OAI: oai:DiVA.org:hv-7689DiVA, id: diva2:817044
Subject / course
Mechanical engineering
Educational program
Maskiningenjör
Supervisors
Examiners
2015-06-052015-06-042024-02-29Bibliographically approved