Sökning: "parameter design"

Visar resultat 11 - 15 av 578 avhandlingar innehållade orden parameter design.

1. 11. Multidisciplinary Design of Transonic Fans for Civil Aeroengines

   Författare :Oliver Sjögren; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Design of experiment; Turbofan performance; Stochastic sensitivity analysis; Jet propulsion; Performance optimization; Multidisciplinary design; Transonic fan stage design;

   Sammanfattning : For current state-of-the-art turbofan engines the bypass section of the fan stage alone provides the majority of the total thrust in cruise and the size of the fan has a considerable effect on overall engine weight and nacelle drag. Thrust requirements in different parts of the flight envelope must also be satisfied together with sufficient margins towards stall. LÄS MER

3. 12. Simulation-driven design : Motives, Means, and Opportunities

   Författare :Ulf Sellgren; KTH; []
   Nyckelord :CAD; CAE; FE method; Metamodel; Object model; PDM; Physical behavior; System; Mechanical engineering; Maskinteknik;

   Sammanfattning : Efficiency and innovative problem solving are contradictory requirements for productdevelopment (PD), and both requirements must be satisfied in companies that strive to remainor to become competitive. Efficiency is strongly related to ”doing things right”, whereasinnovative problem solving and creativity is focused on ”doing the right things”. LÄS MER

4. 13. Security-Driven Design of Real-Time Embedded Systems

   Författare :Ke Jiang; Zebo Peng; Petru Eles; Axel Jantsch; Linköpings universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Security; Embedded System; Real-Time System; Design; Optimization;

   Sammanfattning : Real-time embedded systems (RTESs) have been widely used in modern society. And it is also very common to find them in safety and security critical applications, such as transportation and medical equipment. LÄS MER

5. 14. Design for Producibility in Fabricated Aerospace Components - A framework for predicting and controlling geometrical variation and weld quality defects during multidisciplinary design

   Författare :Julia Madrid; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Quality Assurance; Welding; Aerospace; Design for Producibility; Welding simulation; Variation Management; Design for Manufacturing; robust design;

   Sammanfattning : In the aerospace industry, weight reduction has been one of the key factors in making aircraft more fuel efficient in order to satisfy environmental demands and increase competitiveness. One strategy adopted by aircraft component suppliers to reduce weight has been fabrication, in which small cast or forged parts are welded together into a final shape. LÄS MER

7. 15. Conceptual studies in structural design : pointSketch - a based approach for use in early stages of the architectural process

   Författare :Pierre Olsson; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Architectural Design Process; Scientific Visualisation; GUI; Structural Mechanics; Canonical Stiffness; pointSketch; Conceptual Design; FEM; Furniture Design; Architecture;

   Sammanfattning : The development of computer hardware and software has progressed rapidly in recent years. Nevertheless, the development of software concerned with load-carrying structures and intended for the architectural design process has lagged behind, the majority of it being developed by and for engineers, often making the architects who are involved unduly forced to rely on the know-how of the engineer. LÄS MER