A modelling and simulation framework for the integrated design of aircraft systems

2019 ◽  
Vol 234 (10) ◽  
pp. 1648-1660 ◽  
Author(s):  
N Cimmino ◽  
SS Ponnusamy ◽  
A Garcia Garriga ◽  
L Mainini
Keyword(s):  
New Technologies ◽  
Integrated Design ◽  
Aircraft Design ◽  
Modelling And Simulation ◽  
System Level ◽  
Design Development ◽  
Simulation Framework ◽  
Commercial Aviation ◽  
Simulation Tools ◽  
Development And Validation

New technologies and complex systems are being developed in commercial aviation to meet strict requirements regarding fuel consumption, emissions and noise constraints. This motivates the development of multidisciplinary environments to efficiently manage the increasing complexity of the design process. Under the Clean Sky 2 initiative, the ModellIng and Simulation tools for Systems IntegratiON on Aircraft (MISSION) project aims to develop an integrated framework to holistically support the aircraft design, development and validation processes. Within the MISSION framework, this paper proposes a methodology to handle the integration between the aircraft level and the system level in the early phase of aircraft design. The methodology is demonstrated for the case of the Landing Gear System in the rejected take-off scenario.

A Multi-Criteria Simulation Framework for Civil Aircraft Trajectory Optimisation

2010 ◽  
Author(s):  
Hasan Zolata ◽  
Cesar Celis ◽  
Vishal Sethi ◽  
Riti Singh ◽  
David Zammit-Mangion
Keyword(s):  
Computational Models ◽  
New Technologies ◽  
Oxides Of Nitrogen ◽  
Simulation Framework ◽  
Short Term ◽  
Commercial Aviation ◽  
Flight Profile ◽  
Aircraft Trajectory ◽  
The Impact ◽  
Trajectory Optimisation

Over the past few years, great concern has been raised about the impact of commercial aviation on the environment. In a Business As Usual approach, the expected growth in air traffic is going to affect climate change even more unless mitigation policies are devised and implemented. Although there is a tendency to focus on long-term technological solutions and breakthroughs, short-term improvements applicable to existing aircraft/engine configurations are also very important to fully realise the benefits of new technologies. Aircraft trajectory optimisation presents the opportunity to effectively reduce fuel consumption and pollutants emitted providing a feasible short-term strategy to be applied to the existing aircraft fleet. The present study focuses on preliminary results obtained using a multi-disciplinary aircraft trajectory optimisation simulation framework. Three in-house computational models are implemented in the framework to model the aircraft and engine performance, as well as to predict the level of gaseous emissions produced. A commercially available optimiser is integrated within the framework to analyse and optimise single flight path elements (e.g., climb), as well as the entire flight profile. For the purpose of this study, the climb and the whole flight profile are divided in four and eight segments respectively. Trajectory optimisation processes are then carried out in order to minimise three different objective functions: flight time, fuel burned, and mass of oxides of nitrogen (NOx) emitted. The results of the trajectory optimisation processes performed confirm the validity, effectiveness, and flexibility of the methodology proposed. In future, it is expected that these types of approaches are utilised to efficiently compute complete, optimum and ‘greener’ aircraft trajectories, which help to minimise the impact of commercial aviation on the environment. Other computational models that simulate several other aspects such as aircraft and engine noise, weather conditions and contrails formation, among others, need to be also included in the optimisation processes.

Modeling and design of a multidisciplinary simulator of the concept of operations for space mission pre-phase A studies

2018 ◽  
Vol 27 (1) ◽  
pp. 28-39 ◽  
Author(s):  
Ronan AJ Chagas ◽  
Fabiano L de Sousa ◽  
Arcélio C Louro ◽  
Willer G dos Santos
Keyword(s):  
Integrated Design ◽  
Space Mission ◽  
System Level ◽  
Simulation Tools ◽  
Dynamic Verification ◽  
Graphical Interfaces ◽  
Design Cycle ◽  
High Flexibility ◽  
Operational Concept ◽  
Complex Project

Nowadays, it is practically impossible to develop a complex project without the assistance of a comprehensive set of modeling and simulation tools. In space engineering, they are used throughout the product design cycle, from component up to the system level. In conceptual, pre-phase A studies of a space mission, these tools are essential to explore more broadly the design space, in the search for suitable candidate system solutions for the mission. They are also of prime importance in helping to reduce the design time in integrated concurrent design environments. Here, a multidisciplinary tool for concept of operation simulation, developed to be used in that kind of environments, is presented. FOrPlan has the main purpose of performing functional simulations of the satellite and associated ground segments, providing a dynamic verification of the mission designed operational concept. Through the use of suitable graphical interfaces, key parameters of the mission functional scenarios can be presented to the design team and other mission stakeholders, allowing them also a better understanding of the mission operational concept. The simulator presents high flexibility such that it can be quickly customized to different mission scenarios. It has been used successfully at the Space Missions Integrated Design Center (CPRIME) of the Brazilian National Institute for Space Research. In this article, the structure of FOrPlan is presented, and its main features highlighted through results of concept of operation simulations performed for a scientific space mission study that was carried out recently at CPRIME.

scholarly journals A Machine Learning Enabled Multi-Fidelity Platform for the Integrated Design of Aircraft Systems

2019 ◽  
Vol 141 (12) ◽  
Author(s):  
Ana Garcia Garriga ◽  
Laura Mainini ◽  
Sangeeth Saagar Ponnusamy
Keyword(s):  
Machine Learning ◽  
Flight Control ◽  
Integrated Design ◽  
Modelling And Simulation ◽  
Integrated Modelling ◽  
Flight Control System ◽  
System Architectures ◽  
Simulation Tools ◽  
Fuel Burn ◽  
Development Cycle

Abstract The push toward reducing the aircraft development cycle time motivates the development of collaborative frameworks that enable the more integrated design of aircraft and their systems. The ModellIng and Simulation tools for Systems IntegratiON on Aircraft (MISSION) project aims to develop an integrated modelling and simulation framework. This paper focuses on some recent advancements in the MISSION project and presents a design framework that combines a filtering process to down-select feasible architectures, a modeling platform that simulates the power system of the aircraft, and a machine learning-based clustering and optimization module. This framework enables the designer to prioritize different designs and offers traceability on the optimal choices. In addition, it enables the integration of models at multiple levels of fidelity depending on the size of the design space and the accuracy required. It is demonstrated for the electrification of the Primary Flight Control System (PFCS) and the landing gear braking system using different electric actuation technologies. The performance of different architectures is analyzed with respect to key performance indicators (fuel burn, weight, power). The optimization process benefits from a data-driven localization step to identify sets of similar architectures. The framework demonstrates the capability of optimizing across multiple, different system architectures in an efficient way that is scalable for larger design spaces and larger dimensionality problems.

Design, Development and Validation of New Engine Head Cover with Advanced Sealing System by using Simulation Tools

2016 ◽  
Author(s):  
Jham Kunwar Tikoliya ◽  
Ram Krishna Kumar Singh ◽  
Ramesh Kumar ◽  
Suresh Kumar Kandreegula
Keyword(s):  
Design Development ◽  
Simulation Tools ◽  
Head Cover ◽  
Development And Validation

Electrical resistivity as a measure of change of state in substrates: Design, development and validation of an automated system

Measurement ◽  
2011 ◽  
Vol 44 (1) ◽  
pp. 159-163 ◽  
Author(s):  
Dong Le ◽  
Vijay Vaidyanathan ◽  
Shailesh Vidhate ◽  
Jaycee Chung ◽  
Nandika D’Souza
Keyword(s):  
Electrical Resistivity ◽  
Automated System ◽  
Design Development ◽  
Change Of State ◽  
Development And Validation

scholarly journals Hydropower, Geothermal, and Ocean Energy

MRS Bulletin ◽  
2008 ◽  
Vol 33 (4) ◽  
pp. 389-395 ◽  
Author(s):  
Ralph E.H. Sims
Keyword(s):  
Renewable Energy ◽  
Large Scale ◽  
New Technologies ◽  
Materials Science ◽  
Development Stage ◽  
Design Development ◽  
Ocean Energy ◽  
Improve Design ◽  
And Performance ◽  
Improve Reliability

AbstractSome forms of renewable energy have long contributed to electricity generation, whereas others are just emerging. For example, large-scale hydropower is a mature technology generating about 16% of global electricity, and many smaller scale systems are also being installed worldwide. Future opportunities to improve the technology are limited but include upgrading of existing plants to gain greater performance efficiencies and reduced maintenance. Geothermal energy, widely used for power generation and direct heat applications, is also mature, but new technologies could improve plant designs, extend their lifetimes, and improve reliability. By contrast, ocean energy is an emerging renewable energy technology. Design, development, and testing of a myriad of devices remain mainly in the research and development stage, with many opportunities for materials science to improve design and performance, reduce costly maintenance procedures, and extend plant operating lifetimes under the harsh marine environment.

Computer-Aided Gear Product Realization

2018 ◽  
Author(s):  
Alireza Yazdanshenas ◽  
Emilli Morrison ◽  
Chung-Hyun Goh ◽  
Janet K. Allen ◽  
Farrokh Mistree
Keyword(s):  
Computer Aided Design ◽  
Interaction Analysis ◽  
Gear Tooth ◽  
Integrated Design ◽  
System Level ◽  
Trial And Error ◽  
Stress Concentrations ◽  
Element Analysis ◽  
Gear Design ◽  
Computer Aided

To save time and resources, many are making the transition to developing their ideas virtually. Computer-aided gear production realization is becoming more and more desired in the industry. To produce gears with custom qualities, such as material, weight and shape, the trial and error approach has yielded the best results. However, trial and error is costly and time consuming. The computer-aided integrated design and manufacturing approach is intended to resolve these drawbacks. A simple one stage reduction spur gearbox is used as an example in a case study. First, the gear geometry is developed using computer aided design (CAD) modeling. Next, using MATLAB/Simulink, the gear assembly is connected virtually to other subsystems for system expectations and interaction analysis. Finally, using finite element analysis (FEA) tools such as ABAQUS, a dynamic FEA of the gear integration is completed to analyze the stress concentrations and gear tooth failures. Through this method of virtual gear design, customized dimensions and specifications of gears for satisfying system-level requirements can be developed, thereby saving time and manufacturing costs for any custom gear design request.

scholarly journals Design, development, and validation of concepts for generating passive pulsation in cooling nozzles

2016 ◽  
Vol 7 ◽  
pp. 103-108
Author(s):  
Enno Sabelberg ◽  
Maria Cardenas ◽  
Reinhold Kneer ◽  
Wilko Rohlfs
Keyword(s):  
Design Development ◽  
Development And Validation

scholarly journals The Development and Validation of a Module on Enhancing Students' Critical Thinking, Collaboration and Writing Skills

2020 ◽  
pp. 166-177
Author(s):  
Moustafa Mohamed Abdelmohsen
Keyword(s):  
Critical Thinking ◽  
Writing Skills ◽  
Design Development ◽  
Validity And Reliability ◽  
Paired Samples ◽  
Foundation Program ◽  
The Mean ◽  
Analysis Design ◽  
Addie Model ◽  
Development And Validation

This study aims to develop and test the validity of a module on enhancing students' collaboration, critical thinking (2Cs) and writing skills. To develop the module, the researcher used ADDIE model which incorporates five primary phases, namely Analysis, Design, Development, Implementation and Evaluation. The study used a tryout group which incorporated 20 participants who studied English at The General Foundation Program at a private college in Oman. The study employed a pretest-posttest quasiexperimental design. Paired Samples t-Test was used to compare the mean scores of both tests. Apropos of module validity, a total of 5 experts validated the module. The findings revealed that there is a statistically significant mean difference between the participants' scores in both the pretest and posttest. Further, it was found that the module has good validity and reliability.

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