Sökning: "finite element analysis FEA"

Visar resultat 26 - 30 av 47 avhandlingar innehållade orden finite element analysis FEA.

1. 26. Knowledge-Based Integrated Aircraft Design : An Applied Approach from Design to Concept Demonstration

   Författare :Raghu Chaitanya Munjulury; Petter Krus; Tomas Melin; Christopher Jouannet; Gianfranco La Rocca; Linköpings universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Sammanfattning : The design and development of new aircraft are becoming increasingly expensive and timeconsuming. To assist the design process in reducing the development cost, time, and late design changes, the conceptual design needs enhancement using new tools and methods. LÄS MER

3. 27. Comparison of Different Electrical Machines for Belt-driven Alternator and Starter

   Författare :Dan Hagstedt; Industriell elektroteknik och automation; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Belt-driven Alternator and Starter; Permanently Magnetised Synchronous Machine; Electrically Magnetised Synchronous Machine; Series Magnetisation Synchronous Machine; Hybrid Magnetised Synchronous Machine;

   Sammanfattning : This thesis focuses on the electromagnetic design of a synchronous machine suited for a belt-driven alternator and starter (BAS) in a micro hybridisation of a mid-size passenger car. The BAS needs to provide a high cranking torque to start the combustion engine, especially in a cool condition where the requirements are highest. LÄS MER

4. 28. Simulation of manufacturing sequences for verification of product properties

   Författare :Mats Werke; Torsten Kjellberg; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Manufacturing engineering and work sciences; Produktion och arbetsvetenskap;

   Sammanfattning : The manufacturing sequence may to a large extent influence properties like residual stresses and hardness and, as a consequence, the fatigue life and shape accuracy of a component. By simulating the manufacturing sequence and extract important accumulated data, the possibilities of early analysis of a design concept of a component and optimisation of the complete manufacturing sequence may increase. LÄS MER

5. 29. Design for manufacturing : methods and applications using knowledge engineering

   Författare :Marcus Sandberg; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Funktionella produkter; Functional Product Development;

   Sammanfattning : As companies strive to develop artefacts intended for services instead of traditional sell-off, new challenges in the product development process arise to promote continuous improvement and increasing market profits. This creates a focus on product life-cycle components as companies then make life-cycle commitments, where they are responsible for the function availability during the extent of the life-cycle, i. LÄS MER

7. 30. Efficient Modelling Techniques for Vibration Analyses of Railway Bridges

   Författare :Christoffer Svedholm; Costin Pacoste; Pedro Museros; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Railway bridge; High-speed train; Closed-form solution; Non-proportional damping; Complex mode;

   Sammanfattning : The world-wide development of new high-speed rail lines has led to more stringent design requirements for railway bridges, mainly because high-speed trains can cause resonance in the bridge superstructure. Dynamic simulations, often utilising time-consuming finite element analysis (FEA), have become essential for avoiding such problems. LÄS MER