NEXT GENERATION STABILIZER-Concept/Feasibility for Commuter Aircraft
(2013) MMK820 20131Innovation
- Abstract
- The demand from the aircraft industry of light and stiff structures along with fast manufacturing processes has increased through the last decade. This master thesis is carried out at Saab Aeronautics with purpose of developing a new concept for the horizontal stabilizer to the turboprop aircraft SAAB 2000. To specify the project, only the torsion box, including spars, ribs and skins are considered. Directives are to strive for a low weight, low cost, easy manufacturing process and an easy construction to repair.
The materials used are carbon fiber reinforced epoxy, aluminum and the new alloy aluminum-lithium. During the concept generation, ten concepts in carbon fiber, three concepts in aluminum and three concepts in aluminum lithium... (More) - The demand from the aircraft industry of light and stiff structures along with fast manufacturing processes has increased through the last decade. This master thesis is carried out at Saab Aeronautics with purpose of developing a new concept for the horizontal stabilizer to the turboprop aircraft SAAB 2000. To specify the project, only the torsion box, including spars, ribs and skins are considered. Directives are to strive for a low weight, low cost, easy manufacturing process and an easy construction to repair.
The materials used are carbon fiber reinforced epoxy, aluminum and the new alloy aluminum-lithium. During the concept generation, ten concepts in carbon fiber, three concepts in aluminum and three concepts in aluminum lithium were developed. To make an objective comparison with the current design, a model for this was set up as well. The results from the reference model were used for setting up target values for the new concepts.
Based on analyses results, representatives from Saab chose two concepts for further development, DC.2-R4 and DC.4. DC.2-R4 consists of two spars, four ribs and a skin with integrated stringers. DC.4-R4 is designed with four spars, four ribs and simple skins. The concepts were thereafter dimensioned against buckling and allowable strains per lamina. A laminate layup was also specified to customize the material properties for the inner forces in the structure.
The final result from this master thesis shows that the new designs are approximately 30 % lighter and have 40 % less deflection than for the current design. The total cost in manufacturing is estimated to be around the same as for the current design. (Less)
Please use this url to cite or link to this publication:
http://lup.lub.lu.se/student-papers/record/3915329
- author
- Goodwin, Daniel LU and Sandahl, Paulina LU
- supervisor
- organization
- course
- MMK820 20131
- year
- 2013
- type
- H2 - Master's Degree (Two Years)
- subject
- keywords
- Horizontal stabilizer, Saab, Aeronautics, Design, Product Development, Composite, Structure, Aircraft, Carbon fiber, CFRP
- language
- English
- id
- 3915329
- date added to LUP
- 2013-07-02 08:27:01
- date last changed
- 2013-07-02 08:27:01
@misc{3915329, abstract = {{The demand from the aircraft industry of light and stiff structures along with fast manufacturing processes has increased through the last decade. This master thesis is carried out at Saab Aeronautics with purpose of developing a new concept for the horizontal stabilizer to the turboprop aircraft SAAB 2000. To specify the project, only the torsion box, including spars, ribs and skins are considered. Directives are to strive for a low weight, low cost, easy manufacturing process and an easy construction to repair. The materials used are carbon fiber reinforced epoxy, aluminum and the new alloy aluminum-lithium. During the concept generation, ten concepts in carbon fiber, three concepts in aluminum and three concepts in aluminum lithium were developed. To make an objective comparison with the current design, a model for this was set up as well. The results from the reference model were used for setting up target values for the new concepts. Based on analyses results, representatives from Saab chose two concepts for further development, DC.2-R4 and DC.4. DC.2-R4 consists of two spars, four ribs and a skin with integrated stringers. DC.4-R4 is designed with four spars, four ribs and simple skins. The concepts were thereafter dimensioned against buckling and allowable strains per lamina. A laminate layup was also specified to customize the material properties for the inner forces in the structure. The final result from this master thesis shows that the new designs are approximately 30 % lighter and have 40 % less deflection than for the current design. The total cost in manufacturing is estimated to be around the same as for the current design.}}, author = {{Goodwin, Daniel and Sandahl, Paulina}}, language = {{eng}}, note = {{Student Paper}}, title = {{NEXT GENERATION STABILIZER-Concept/Feasibility for Commuter Aircraft}}, year = {{2013}}, }