Showing 1 - 10 of 58
This paper reports the application of an evidential reasoning (ER) approach, to deal with the evaluation of a contractor, from among different fabrication options of aero-engine equipment. This is followed by a review of current evaluation practices, which begins by highlighting their...
Persistent link: https://www.econbiz.de/10009474412
The purpose of this paper is to present an engineering assessment of a proposal for a deployment brake for a momentum exchange tether. Tethers have attracted considerable interest amongst the propulsion community for many years for orbit raising, energy conversion, de-orbiting, and injection...
Persistent link: https://www.econbiz.de/10009455469
This paper presents evidence to show how vocational qualifications act as boundary objects in the stimulation of learning at work and how they, in turn, become the catalyst for the creation of artefacts that have a purpose and existence beyond the life cycle of an accreditation process....
Persistent link: https://www.econbiz.de/10009457917
This report summarizes the work that has been carried out as part of the FLAVIIR project, a 5 year research program looking at technologies for future unmanned air vehicles. A novel classication of aircraft product defnition is utilised and a framework to estimate the life cycle cost of aircraft...
Persistent link: https://www.econbiz.de/10009458015
The aero-engine is probably the most complex and vital part of civil and military aircrafts, and it is usually an important cost element of the aircraft at acquisition and operation periods. The reduction of acquisition, operation and support costs for civil and defence sectors is going to be...
Persistent link: https://www.econbiz.de/10009458083
Accepting that all models are wrong, whilst some are useful (G.E.P. Box), this paper will describe how the bootstrap technique has been applied to forecasting for Rolls-Royce, in order to develop a more robust decision support framework that can deliver on the promise of being more useful....
Persistent link: https://www.econbiz.de/10009458140
In this study multi-fidelity surrogate modelling for combining data sets of wind tunnel experiments and computations is examined, dealing with different types of errors. Co- kriging regression is constructed with the low-fidelity sample data of the computations and the high-fidelity data of the...
Persistent link: https://www.econbiz.de/10009458218
This paper explores how some of the ideas emerging from the `cultural turn' in economic geography can help us understand the `world of production' constituted by a revivified artisanal sector - the British kit car industry. It is argued that the sector can be interpreted as a `community of...
Persistent link: https://www.econbiz.de/10009458443
This paper reports a theoretical and numerical study of the radiation of sound throughjet exhausts. It focuses on the transition from near field to far field by considering thefeatures of the near field solution and how these features translate to the far field. Themain finding of this work is...
Persistent link: https://www.econbiz.de/10009458446
The development of commodity (PC) based computing hardware and software is having a significant impact on the training and simulation industry. A number of gaming platforms are already being used for military training applications, and having a positive impact. Microsoft ESP is a new simulation...
Persistent link: https://www.econbiz.de/10009458497