Systems Analysis for Commercial Aircraft Flight Simulator

2007 ◽  
Vol 10-12 ◽  
pp. 522-527 ◽  
Author(s):  
Pan Guo Qi ◽  
D.C. Cong ◽  
H.J. Jiang ◽  
Jun Wei Han
Keyword(s):  
Communication Networks ◽  
System Architecture ◽  
Systems Analysis ◽  
Simulation Models ◽  
Aircraft Design ◽  
Pilot Training ◽  
Flight Simulator ◽  
Commercial Aircraft ◽  
Aircraft Flight ◽  
The Past

Flight simulator is a complex man-in-the-loop (MIL) simulation system. With several decades of development, it has already become important tools of aircraft design and development, and necessary means of pilot training. And simulation credibility and reliability of the flight simulator have been considerably improved in comparison with the past. However, the system of flight simulator has become increasingly complex and difficult to be described clearly. This paper presents the concepts of conceptual layer and achieving layer, analyzes the composition and principle of the commercial aircraft flight simulator for pilot training from the two layers, describes the system architecture in detail. According to the system architecture, three aspects are very important to develop the flight simulator, the first is the fidelity of the simulation models, the second is the performance of cueing devices, and the last are the computing capacity of the host computers and the time delay over the communication networks.

Science and Medicine in Imperial China—The State of the Field

1988 ◽  
Vol 47 (1) ◽  
pp. 41-90 ◽  
Author(s):  
Nathan Sivin
Keyword(s):  
History Of Science ◽  
Systems Analysis ◽  
Half Century ◽  
The Past ◽  
Professional Societies ◽  
Past Half Century ◽  
New Directions ◽  
History Of ◽  
Imperial China ◽  
Past Half

Sinology and the history of science have changed practically beyond recognition in the past half-century. Both have become academic specialisms, with their own departments, journals, and professional societies. Both have moved off in new directions, drawing on the tools and insights of several disciplines. Although some sinologists still honor no ambition beyond explicating primary texts, on many of the field's frontiers philology is no more than a tool. Similarly, many technical historians now explore issues for which anthropology or systems analysis is as indispensable as traditional historiography.

The Evolution of Free Standing Risers

2009 ◽  
Author(s):  
Elizabeth Tellier ◽  
Ricky Thethi
Keyword(s):  
West Africa ◽  
System Architecture ◽  
Vertical Section ◽  
Single Line ◽  
Free Standing ◽  
Dynamic Motion ◽  
The Past ◽  
New Concepts ◽  
Complex Evaluation ◽  
Deepwater Riser

Deepwater riser selection is a complex evaluation of technical and commercial project drivers. The free standing hybrid riser (FSHR) has evolved in the last 10 years through major use in West Africa and is now gaining serious consideration in other deepwater provinces. The key benefit of the free standing riser is that the steel riser vertical section is offset from the vessel using flexible jumpers, thereby decoupling the riser from vessel dynamic motion. Early FSHR configuration took the hybrid bundle tower form. The very first free standing riser system, installed in 1988, consisted of the Placid hybrid bundle in the Gulf of Mexico. In the late nineties, a hybrid bundle tower was chosen for the Girassol development in West Africa. Since then, the industry has sanctioned numerous developments using multiple single line freestanding risers. Optimization of the FSHR is continuing with new concepts such as the Grouped SLOR developed to offer the combined benefits of both the bundle and single line multiple arrangements. This paper will describe how the FSHR configuration has evolved to meet increasing industry demands over the past 10 years and will discuss the future of this type of riser system. Increasing applications in ultra deepwater regions, hurricane prone locations and tiebacks to existing payload limited production vessels will be discussed with riser system architecture described including interfaces with the vessel and seabed.

scholarly journals A Ground Control Station for the UAV Flight Simulator

2016 ◽  
Vol 10 (1) ◽  
pp. 28-32
Author(s):  
Sławomir Romaniuk ◽  
Zdzisław Gosiewski ◽  
Leszek Ambroziak
Keyword(s):  
Flight Simulator ◽  
Ground Control ◽  
C Language ◽  
Aircraft Flight ◽  
Ground Control Station ◽  
Flight Parameters

Abstract In the paper implementation of a ground control station for UAV flight simulator is shown. The ground control station software is in cooperation with flight simulator, displaying various aircraft flight parameters. The software is programmed in C++ language and utilizes the windows forms for implementing graphical content. One of the main aims of the design of the application was to simplify the interface, simultaneously maintaining the functionality and the eligibility. A mission can be planned and monitored using the implemented map control supported by waypoint list.

Characteristics of a co-flowing jet with varying lip thickness and constant bypass ratio

2019 ◽  
Vol 91 (9) ◽  
pp. 1205-1213 ◽  
Author(s):  
Naren Shankar R. ◽  
Kevin Bennett S.
Keyword(s):  
Design Methodology ◽  
Critical Value ◽  
Commercial Aircraft ◽  
Critical Limit ◽  
Potential Core ◽  
Content Type ◽  
Free Jet ◽  
The Past ◽  
Bypass Ratio ◽  
Practical Implications

Purpose Subsonic commercial aircraft operate with turbo-fan engines that operate with moderate bypass ratio (BR) co-flowing jets (CFJ). This study aims to analyse CFJ with constant BR 6.3 and varying primary nozzle lip thickness (LT) to find a critical LT in CFJ below which mixing enhances and beyond which mixing inhibits. Design/methodology/approach CFJ were characterized with a constant BR of 6.3 and varying lip thicknesses. A single free jet with a diameter equal to that of a primary nozzle of the co-flowing jet was also studied for comparison. Findings The results show that within a critical limit, the mixing enhanced with an increase in LT. This was signified by a reduction in potential core length (PCL). Beyond this limit, mixing inhibited leading to the elongation of PCL. This limit was controlled by parameters such as LT and magnitude of BR. Practical implications The BR value of CFJ in the present study was 6.3. This lies under the moderate BR value at which subsonic commercial turbofan operates. Hence, it becomes impervious to study its mixing behavior. Originality/value This is the first effort to find the critical value of LT for a constant BR for compressible co-flow jets. The CFJ with moderate BR and varying LT has not been studied in the past. The present study focuses on finding a critical LT below which mixing enhances and above which mixing inhibits.

In-Vehicle Network Architecture for the Next-Generation Vehicles

2010 ◽  
pp. 283-302 ◽  
Author(s):  
Syed Masud Mahmud
Keyword(s):  
Communication Networks ◽  
Network Architecture ◽  
Fault Tolerant ◽  
Fuel Efficiency ◽  
Simulation Models ◽  
Cost Effective ◽  
Multimedia Systems ◽  
Safety Features ◽  
Vehicle Network

New types of communication networks will be necessary to meet various consumer and regulatory demands as well as satisfy requirements of safety and fuel efficiency. Various functionalities of vehicles will require various types of communication networks and networking protocols. For example, driveby- wire and active safety features will require fault tolerant networks with time-triggered protocols to guarantee deterministic latencies. Multimedia systems will require high-bandwidth networks for video transfer, and body electronics need low-bandwidth networks to keep the cost down. As the size and complexity of the network grows, the ease of integration, maintenance and troubleshooting has become a major challenge. To facilitate integration and troubleshooting of various nodes and networks, it would be desirable that networks of future vehicles should be partitioned, and the partitions should be interconnected by a hierarchical or multi-layer physical network. This book chapter describes a number of ways using which the networks of future vehicles could be designed and implemented in a cost-effective manner. The book chapter also shows how simulation models can be developed to evaluate the performance of various types of in-vehicle network topologies and select the most appropriate topology for given requirements and specifications.

Integration of bill of materials with unified bill of materials model for commercial aircraft design to manufacturing

2014 ◽  
Vol 22 (3) ◽  
pp. 206-217 ◽  
Author(s):  
Lina He ◽  
Yanrong Ni ◽  
Xinguo Ming ◽  
Miao Li ◽  
Xiuzhen Li
Keyword(s):  
Aircraft Design ◽  
Commercial Aircraft ◽  
Bill Of Materials

Cyber-Archaeology

Anthropology ◽  
2019 ◽  
Author(s):  
Maurizio Forte ◽  
Nevio Danelon
Keyword(s):  
Digital Simulation ◽  
Simulation Models ◽  
Physical World ◽  
Data Sets ◽  
Knowledge Domains ◽  
Archaeological Data ◽  
The Past ◽  
Digital Ecosystem ◽  
Interpretation Process ◽  
Real Time Simulations

Cyber-archaeology is a branch of archaeological research concerned with the digital simulation of the past. In this context the past is seen as generated by the interaction of multiple scenarios and simulations and by the creation of different digital embodiments. The term also recalls the ecological cybernetics approach, based on the informative modeling of organism-environment relationships. In fact, cyber-archaeology aims to investigate the past through interactions with multimodal simulation models of archaeological data sets in different areas of knowledge (domains). The cognitive-interpretive process is accomplished through an interaction feedback loop in a virtual reality environment, following a nonlinear cognitive path. This process allows for the formation and validation of scientific theories about archaeological contexts and material cultures. Cyber-archaeology assumes that the past cannot be reconstructed but rather simulated. Whereas virtual archaeology is mainly visual, static, and graphically oriented to photorealism, which conveys a peremptory idea of predefined knowledge, cyber-archaeology is not necessarily visual, but rather interactive, dynamically complex, and autopoietic. It focuses on the potentiality and virtuality of the interpretation, as opposed to the actuality of the physical world. It is more appropriate to think in terms of a potential past, a co-evolving subject in the human evolution generated by cyber-interactions between worlds. In the cyber-archaeological perspective, the focus is the simulation, which is the enactive-dynamic behavior of the virtual actor and the digital ecosystem. As a consequence of this, the workflow able to move and migrate data from the fieldwork to a simulation environment can generate different affordances and cybernetic models, each of which can create feedback, which serves as a new map-code for the interpretation. The increasing use of 3D digital technologies in archaeology, in fact, is identifiable in new digital workflows and real time simulations of archaeological data sets. This digital migration of data and models in such diverse domains creates unexpected results and more advanced knowledge. The study of the code is essential for re-analyzing the interpretation process in the light of a cybernetic perspective: the feedback created by different interactors operating in the same environment/ecosystem generates further feedback and not predetermined interconnections.

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