Many engineering objects have surfaces that are critical to their performance. Analysis codes are used to design these surfaces for efficient performance. The iterative procedure of design followed by analysis requires the ability to generate and modify such surfaces rapidly. In the work described in the paper, surfaces which blend together bifurcated inlets are generated. A functional blendino...

This paper provides a novel contribution for specifying the role of demand for technological competition. The focus is on the analysis of the mechanisms of technological learning and spillovers occurring in different structures of networks of vertically-related industries. The paper offers a detailed and original empirical analysis of technological competition among suppliers and structure of t...

The paper deals with a Unified Modeling Language (UML)-based approach for implementing Product Data Management (PDM) system. Such kind of system enables the management of the entire product lifecycle and related information about its design, its manufacturing and its in-service. The interest of using an UML-based approach for modeling, specifying and implementing PDM systems is detailed. Then a...

A flight test is described in which an active structural/acoustic control system reduces turboprop induced interior noise on a Raytheon Aircraft Company 1900D airliner. Control inputs to 21 inertial force actuators were computed adaptively using a transform domain version of the multichannel filtered-X LMS algorithm to minimize the mean square response of 32 microphones. A combinatorial search ...

This article shares with the aerospace community a case study of turboprop mild hybridization using recently developed integrated drive system in University Nottingham, U.K., within ACHIEVE project under EU H2020 CleanSky 2 program (project No. 737814). The enables green taxiing aircraft while on ground its engine OFF and as an electrical generator when is air. entire designed to be able integr...

In this work, the aerodynamic and structural design of fairing for vehicles was carried out. The Rankine half body theory, which is one theories being used aircraft gas turbine engine inlets turboprop nose cones adopted design. glass fabric composite materials were performed by analyzing loads. Structural analysis based on results to investigate safety. manufactured applying resin transfer mold...

Modern aircraft turboprop engines are generally managed by pilots using the well-established two-levers approach which allows pilot to control independently engine thrust (power lever) and propeller rotational speed (condition lever). On other hand, twolevers governing system presents several disadvantages in terms of training, fuel consumption maintenance. The one-lever tries solve such drawba...