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PROTOTYPING


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Fuel system simulation


Plug-in models of aircraft fuel systems are available for prototyping and mathematical simulation for early design evaluation.


Fuel system libraries will be available for multi-physics simulation software for early design phase modelling and prototyping


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SI ITI, the model based simulation specialist subsidiary of virtual prototyping company, ESI Group, has established a partnership with Swedish company, Modelon. The company from Lund boasts a comprehensive suite of Modelica-based


libraries, a reference in the field of systems engineering, which will now be progressively integrated into ESI’s SimulationX, a software platform for simulating multiphysics systems. Such mathematical simulation models are essential for


performing early prototype evaluation of complex system designs before committing to physical models. The integration promises to add a new level of richness to the simulation models. The first stage of this integration will occur in the


forthcoming version, SimulationX 3.9.3, which will feature Modelon’s Fuel System Library, dedicated to the aerospace sector. The availability of this new library will contribute to the early prediction of systems behaviour for various operating modes and flight conditions.


PLUG-IN SIMULATION LIBRARIES The Fuel System Library is just one of a whole range of such libraries that are used for enabling the creation of state-of- the-art system models for a wide range of industries, including the automotive, aerospace, industrial machinery, energy and processing sectors. These libraries are built on the Modelica standard, a modelling language, which allows engineers to reuse and exchange dynamic and mechatronic system models within different software applications. “We’re thrilled to welcome ESI’s SimulationX to the growing list of platforms that use our proven and feature- rich suite of Modelica-based libraries,” said Magnus Gäfvert, CEO at Modelon. “We’re confident that this integration and partnership will enable SimulationX users to streamline their design and simulation processes. Our goal is to provide comprehensive models to all industries, and our initial focus


on aerospace applications will be key in addressing their customers’ priorities.” “The addition of Modelon’s libraries to the vast collection


of existing SimulationX libraries offers our users the largest model base available for system simulation,” said Dr Andreas Uhlig, Managing Director, Systems Engineering, ESI Group. “We are excited that the global community of Modelon customers can now take advantage of the well-established SimulationX platform. This partnership strongly promotes the Modelica standard and encourages smart products for systems design, validation, test and operation.”


MODELLING FUEL SYSTEMS The Fuel System Library to be implemented into SimulationX 3.9.3 enables engineers to design aircraft fuel systems with real-time capable models, including gravitational and geometrical effects as well as air-fuel mixtures. The library is intended for the analysis and verification of a system’s behaviour during various dynamic operating modes and flight conditions. The Fuel System Library is a versatile tool for system and component development and allows the assessments of system performance and transient characteristics. The models have been designed to be efficient and numerically robust and can therefore handle complex large-scale systems. Component models include ejectors, pumps, tanks, valves and pipes. Furthermore, the Fuel System Library permits the creation


of geometric, real-time capable models with any degree of gravity and acceleration for accurate predictions about the entire flight envelope. Engineers benefit from an efficient representation of air-fuel mixture properties for robust and fast simulations of large systems. The library provides a configurable level of detail for faster simulations and appropriate complexity, for example the option to switch thermal effects on or off. n


Aerospace Test & Validation 2018 /// 9


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