Search for dissertations about: "Aircraft engine maintenance"

Showing result 1 - 5 of 7 swedish dissertations containing the words Aircraft engine maintenance.

2. 1. Multi-Disciplinary Conceptual Design of Future Jet Engine Systems

   Author : Konstantinos G. Kyprianidis; Stephen O. T. Ogaji; Riti Singh; Herbert Saravanmuttoo; UK Cranfield University; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Gas Turbine; Intercooled; Recuperated; Turbofan; Future; Simulation; Performance; Aircraft; Emissions; Multi-disciplinary; Jet Engine; Energy- and Environmental Engineering; energi- och miljöteknik;

   Abstract : This thesis describes various aspects of the development of a multi-disciplinary aero engine conceptual design tool, TERA2020 (Techno-economic, Environmental and Risk Assessment for 2020), based on an explicit algorithm that considers: engine performance, engine aerodynamic and mechanical design, aircraft design and performance, emissions prediction and environmental impact, engine and airframe noise, and production, maintenance and direct operating costs.As part of this research effort, a newly-derived semi-empirical NOx correlation for modern rich-burn single-annular combustors is proposed. READ MORE

4. 2. Improved remaining useful life estimations for on-condition parts in aircraft engines

   Author : Veronica Fornlöf; Anna Syberfeldt; Anders Skoogh; Högskolan i Skövde; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Aircraft engine maintenance; Reliability; Remaining useful life; On-condition parts; Prognosis; Technology; Teknik; Production and Automation Engineering; Produktion och automatiseringsteknik;

   Abstract : This thesis focuses on obtaining better estimates of remaining life for on-condition (OC) parts in aircraft engines. Aircraft engine components are commonly classified into three categories, life-limited parts (LLP), OC-parts and consumables. Engine maintenance typi-cally accounts for 10% to 20% of aircraft-related operating cost. READ MORE

5. 3. Optimization of Geometric Robustness of Aero Structures in Early Design Phases

   Author : Anders Forslund; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Geometry Assurance; Uncertainty Quantification; Robust Design; Simulation; Geometric Variation;

   Abstract : Every manufactured product is different. This variation can be detrimental to quality and product functionality. In an aerospace context, this variation may even result in serious threats to the safety and reliability of aircraft. However, it is not the variation itself that is harmful, but the effects it has on functionality. READ MORE

6. 4. Customer-perceived Value in Business Relationships

   Author : Catarina Bovik; Per Norling; Christian Berggren; Karlstads universitet; []
   Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Customer-perceived value; Total service offering; Business-to-business relationship; Commercial aircraft engine maintenance industry; Case study; Business studies; Företagsekonomi; Business Administration; Företagsekonomi;

   Abstract : The content of customer-perceived value has in this study been explored with the aim of providing an understanding of the concept. The evolving service-centered logic for marketing puts an emphasis on value, especially the value perceived and determined by the customer. READ MORE

7. 5. A Constructive Approach to the Interaction between Risk and Logistics - A Study of Total Offers in the Aerospace Industry

   Author : Jenny Svanberg; Förpackningslogistik; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Air transport technology; Constructive Approach; Total Offer; Aircraft Industry; Uncertainty; Risk Analysis; Logistics; Inbound Logistics; Lufttransportteknik;

   Abstract : Total offers have become increasingly common in the aircraft industry during recent years. The total offers bring on challenges as well as possibilities for the providers of engine maintenance. The possibilities, increased profitability and efficiency, are depending on how the organisation copes with the challenges. READ MORE