• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 6
  • 5
  • Tagged with
  • 15
  • 15
  • 5
  • 4
  • 3
  • 2
  • 2
  • 2
  • 2
  • 2
  • 2
  • 2
  • 2
  • 2
  • 2
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Operatörslift : konstruktion av hissanordning till operatörsplattform

Ahlgren, Jonas January 2003 (has links)
No description available.
2

Operatörslift : konstruktion av hissanordning till operatörsplattform

Ahlgren, Jonas January 2003 (has links)
No description available.
3

Unpacking innovation : the processes and predictors of individual innovation amongst engineers

Unsworth, Kerrie L. January 2000 (has links)
No description available.
4

Heat transfer and fluid flow in the high pressure compressor drive cone cavity of an aeroengine

Kais, G. January 1998 (has links)
No description available.
5

Konstruktion av infästning till dysa / Design of attachment for duct

Lie Gustavsson, Victor January 2014 (has links)
The goal of this thesis is to design an attachment between a duct and a pod. A pod is what could be compared to an outboard engine for larger vessels. The pod is placed on the outside of the ship’s hull and can rotate 360 ̊. A duct is a large steel ring that can be placed around the propeller on the pod to increasethe propulsion force of the ship in lower velocities. The thesis is written for Rolls Royce AB in Kristinehamn.The demanded requirements of the design are: it must be easy to adapt to different sizes and shapes of pod houses, the duct must be able to bemounted and dismounted from the pod.The result from this thesis is that anupper and a lower attachment weredesigned. The upper attachment consists of two parallel steel plates which arebolted together with a screw plate that is welded to the pod house.The lower attachment is basically a wing with a streamlined profile which is bolted to a stay. Both attachments consist of bolted joints, two guide pins and bursting screws.The design is controlled by parameters in CAD, meaning that if you change the size of the duct the attachments automatically adapts themselves to the new dimensions.The total result from this thesis is a design suggestion and not an actual manufactured product.The design is dimensioned by a load analysis and strength calculations. The dimensions of the bolts are determined by basic load calculation and the guide pins aredimensioned to withstand the shear forces that occur.The conclusion of this thesis is that the developed attachment solution is a good way to solve this problem andthe personal recommendation is that it should be developed further.Further design work that needs to be done with the attachment is a more thorough analysis of the strength and especially with fatigue, since no account has been taken considering fatigue. / Målet med detta arbete är att konstruera en infästning mellan en dysa och en pod. En pod är vad som kan liknasen utombordsmotor för stora fartyg som sitter på utsidan av skrovet och kan rotera 360 ̊. En dysa är en stor stålring som kan sättas runt propellern, dysan ger förenklaten ökad framdrivningskraft och är lämplig för användning vid fartygstillämpningar där det handlar om låga hastigheter.Arbetet utförs på uppdrag av Rolls Royce AB i Kristinehamn.Kraven som ställdes på konstruktionen var att den skulle vara lätt att anpassa och att det skulle gå att montera och demontera dysan.Problemformuleringen för arbetet är att en ny infästning behövs för att kunna fästa dysan i poden.Resultatet av arbetet blev en övre och en nedre infästning på dysan. Den övre infästningen består av två parallella plåtar som skruvas ihop med en svetsad infästning på dysan. Den nedre infästningen består av en vinge med en strömningsvänlig profil som skruvas fast på ett stag. Båda infästningarna består av ett skruvförband, två styrpinnar och sprängskruv.Konstruktionen parametriserades i CAD så attomdysans storlekändrasså följer infästningarna med.Hela arbetet resulterade i ett konstruktionsförslag.Konstruktionen har dimensionerats med hjälp av en lastanalys och hållfasthetsberäkningarför att uppskatta infästningarnas nedböjning. Skruvförbanden har dimensionerats med enklare beräkningar och styrpinnarna har dimensioneratför att uppta skjuvspänningar.Slutsatsen som dras av arbetet är att konstruktionen är en lämplig lösning på problemet och rekommendationen är att det är värt att undersöka denna lösning vidare.Vidarearbete som behöver utföras är nogrannare dimensionering av konstruktionen, ingen hänsynhar tagits till utmattning eller vridning då det inte fanns tid inom arbetets tidsram för detta.
6

RR PLC Application Code : a Benchmark Study

Kihlström, Andreas, Weivert, Joakim January 2009 (has links)
This degree thesis is performed at Rolls-Royce at the Control Systems division. The assignment is to compare two different PLC development tools and determine how a transition toa new PLC development tool would be. The programs that will be compared is the current toolAutoCAD with the extension ACG and CoDeSys. A transition from AutoCAD to CoDeSys is realizable but will take considerable time and effort. Theeasiest way to achieve this is to during the transition generate an export file from the existing drawingsin AutoCAD which then can be imported to CoDeSys. By this CoDeSys can be used as a platform fordeveloping. This is fully realizable because ACG which generates the C code can be modified togenerate almost any export file.
7

RR PLC Application Code : a Benchmark Study

Kihlström, Andreas, Weivert, Joakim January 2009 (has links)
<p>This degree thesis is performed at Rolls-Royce at the Control Systems division.</p><p>The assignment is to compare two different PLC development tools and determine how a transition toa new PLC development tool would be. The programs that will be compared is the current toolAutoCAD with the extension ACG and CoDeSys.</p><p>A transition from AutoCAD to CoDeSys is realizable but will take considerable time and effort. Theeasiest way to achieve this is to during the transition generate an export file from the existing drawingsin AutoCAD which then can be imported to CoDeSys. By this CoDeSys can be used as a platform fordeveloping. This is fully realizable because ACG which generates the C code can be modified togenerate almost any export file.</p>
8

A framework for the introduction of knowledge management within an engineering environment

Ubhi, Hardev January 2008 (has links)
This research is based on real issues that have been recognised within the global organisation, Rolls-Royce. The first aim concerned an issue that many companies face, the difficulty that employees face in locating the knowledge and information they require, especially in larger organisations. The developed solution of an Information Map proved to be a success in providing people within the Submarines business with the location of' Configuration Management information. The concept of the Information Map is one that can be adopted by any business as the stages in the tools development have been well documented within Chapters Four, Five and Six. Analysis of the success of the Information Map led to the derivation of 10 lessons learned. These were then verified in a second case study of an intranet development. The second aim of the research was to create a Knowledge Management framework that could be adapted by companies looking to invest in Knowledge Management and provide them with a guide to use. This framework was built from the lessons learned from the Information Map and from other best practice derived from available literature and within Rolls-Royce. The work conducted within the Support business tries to fill in gaps in current research by offering companies a new approach to Knowledge Management, which was based upon the way that industries work today. The creation of the Knowledge Management framework simplifies the work conducted and offers practitioners an easy, high-level approach to the adoption of Knowledge Management by grouping the process into ten steps. This is presented in a fashion that is easy to follow and ultimately offers a guide to make the best use of the resources and budget available to Knowledge Management practitioners. Overall the research addresses the 'real' issues faced by Knowledge Management practitioners. The main contributions to the Knowledge Management domain are the Information Map, action research approach, implementation of Knowledge Management tools for the users needs and a Framework as a guide for industry.
9

Rolls-Royce and the Future of Luxury Mobility

Östman, Ludwig January 2018 (has links)
The topic of the project has been about the future of luxury mobility and how the brand Rolls-Royce could evolve alongthe technological advancements until the year 2038. As luxury is changing from being about possession to the experience of luxury, the goal was to design a vehicle that could support both new internal and external experiences about the vehicle. The identified obstacle that could limit the scope of new experi- ences in an autonomous vehicle is motion sickness. As cities grow and technology develops the future cities are crowded so personal space, and privacy is being limited.During the process, the tools used varied from form explora- tion through sketching, concept principle testing and finalization in 3d software as well as visualization tools to communicate the proposed solutions. Working out of the Rolls-Royce designstudio provided brand insight but also expertise in the field of color &amp; materials as well as advice on engineering solutions from the design team.The result Rolls-Royce Luxe Nomad is a vehicle for exploring the world outside the urban areas. Going far and beyond in search of new and unique experiences but also making the trip there as enjoyable as possible. The concept provides a solution inspired by high-speed trains that could limit those effects. Through understanding the future customers need of privacy a method of controlling the amount of insight was developed to enhance the user experience and giving them an increased sense of control of their space.
10

Whole life cost methods for computer systems

Bradley, Malcolm January 1998 (has links)
This thesis provides an analysis of cost of ownership issues and techniques, and provides the supporting data to enable future system designers to make rational decisions on design options. It represents the experience gained whilst collecting cost and cost relationship data in the Rolls-Royce group over a period or more than four years. This, in a time of continuous change, in both the company and the wider IT industry. The thesis is arranged in chapters, each representing a milestone conference or journal paper. The exception to this is chapter Il- the conclusion and summary of the work in the thesis. The Chapter topics cover firstly the background of whole life cost and the aims and objectives of the research. A relationship between whole life cost and quality is considered and why whole life cost is a useful measure of quality. This is examined in practical terms of tools and methods. Case studies are used to illustrate the measurement and use of whole life cost. The impact of obsolescence risk is next considered, identifying the causes and implications of obsolescence. Case studies are used to show how the IT help desk can be used to identify and reduce whole life costs both in a deterministic and a probabilistic approach. This is followed by an examination of the costs of database systems at Rolls-Royce and Associates. Case studies of database systems are also used to show the need to collect in service data, and genetic algorithms are shown to be a useful tool for analysing the data. Whole life costing techniques applied to engineering systems at Rolls-Royce is examined. It is shown that a reliability centred maintenance database is a cost effective tool in collecting data. Network monitoring software is shown to be an effective tool for reducing the cost of ownership of IT systems. The overall conclusion is that whole life cost techniques have been shown to work for computer based systems, further work in this area is still needed to enable costs to be fully understood and optimised.

Page generated in 0.0394 seconds