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Technical Paper

Nonlinear Slender Beam-Wise Schemes for Structural Behavior of Flexible UAS Wings

2015-09-15
2015-01-2462
The innovative highly flexible wings made of extremely light structures, yet still capable of carrying a considerable amount of non- structural weights, requires significant effort in structural simulations. The complexity involved in such design demands for simplified mathematical tools based on appropriate nonlinear structural schemes combined with reduced order models capable of predicting accurately their aero-structural behaviour. The model presented in this paper is based on a consistent nonlinear beam-wise scheme, capable of simulating the unconventional aeroelastic behaviour of flexible composite wings. The partial differential equations describing the wing dynamics are expanded up to the third order and can be used to explore the effect of static deflection imposed by external trim, the effect of gust loads and the one of nonlinear aerodynamic stall.
Technical Paper

SCADE Solutions for the Efficient Development of ARINC 661 Cockpit Display Systems and User Applications

2011-10-18
2011-01-2578
This paper presents an integrated solution based on Commercial Off-The-Shelf (COTS) tools that allows, in the initial stage of an aircraft project, support for the expression of requirements with regards to the CDS definition and the CDS interaction with the User Applications (UAs). It also enables prototyping of the systems architecture from the point of view of functionalities and performance. ...At a later stage of the project, this same integrated tool suite can be used to produce and certify the final embedded software code within the CDS and to generate the communication code between the CDS and the UAs. As a conclusion, the paper demonstrates that the proposed solution, configurable and relying on model-based design and qualified automatic code generation of graphics, logics and communication code for both the Server and the User Applications, provides costs and time benefits.
Magazine

Aerospace Engineering 2007-03-01

2007-03-01
Management promotes sharing The extensive use of CAD tools in aerospace design brings many benefits, but also a number of challenges. Getting robots to multi-task The demand to fulfill continually increasing customer requirements forces suppliers to offer state-of-the-art system manufacturing solutions.
Magazine

Aerospace & Defense Technology: February 2015

2015-02-02
Wireless sensing--the road to future digital avionics A look at the comparative performance of wired and wireless sensors, type of wireless sensors & interfaces, frequency performance, protocols, network topologies and qualification standards. Testing reality in an increasingly complex design space Digital simulation tools have transformed the designing and testing of new airplanes, as well as the way they are manufactured and sustained.
Magazine

Aerospace Engineering: July 9, 2014

2014-07-09
Simulations for safety Improved design tools let aircraft developers ensure that systems, software, and mechanical elements all work together.
Article

Rolls-Royce deploys virtual reality training for maintainers

2019-05-09
Rolls-Royce holds that hands-on, practical training will always be the main focus for maintainers; however, VR technology will help bolster training activities especially with the amount of new aircraft that will be needed to accommodate the additional air passengers (which is expected to almost double by 2036).
Article

Maintainers design a $400 maintenance fixture to save the U.S. Air Force $500k per year

2019-04-30
A cowling, or engine cover, is a critical airframe component that reduces drag and directing airflow into the engine. For the E-8C JSTARS, an aircraft with four massive Pratt and Whitney JT3D-based TF33-102C turbofan engines, each set of engine cowling components can cost up to $80,000 per set. Even a slightly warped cowling renders the entire housing unsafe and unserviceable.
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