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The Ship Air Interface Framework (SAIF) Project:Dynamic Challenges


Over the past five years, the UK Ship/Air InterfacernFramework (SAIF) project has developed arnsimulation capability aimed at the accuraternprediction of Ship/Helicopter Operating Limitsrn(SHOLs). The development of the SAIF system hasrnpresented a number of technical challenges,rninvolving the accurate modelling of the interfacesrnbetween the ship, air vehicle, and the environmentrnin which they both operate. The project hasrnemployed a federated approach, using the industryrnstandard High-Level Architecture (HLA). Arnnetworked version of the Merlin helicopter simulatorrnat the Royal Naval Air Station (RNAS) Culdrose hasrnprovided a high fidelity test environment for thernSAIF project, whereby results from simulationrnexperiments flown by experienced aircrew can berncompared against real flight test data.rnThe validation of the SAIF simulation is a criticalrnarea of the project. Careful consideration is neededrnas to how close a match is required between realrnand simulated results in order that reasonablernSHOL predictions can be achieved. For certainrnareas of the simulation, such as the airwake aroundrnthe ship and the ship motion in the seaway,rnnumerical comparison between simulated and realliferndata is possible, but not without its difficulties.rnThe subjective assessment of the simulation byrnexperienced Merlin aircrew has proved vital inrnproviding an alternative means of evaluating thernaccuracy of the simulation.rnOf key importance has been the modelling of therndynamic ship airwake, and its effect upon thernaircraft dynamics and pilot workload. The SAIFrnproject is developing high-fidelity time-accuraternComputational Fluid Dynamics (CFD) models of thernship airwake, in order to provide a far more realisticrnreal-time representation of the turbulent airflowrncharacteristics around the ship. The modelling ofrnthe ship airwake has been demonstrated to berncritical to achieving realistic levels of pilot workload,rnand hence accurate predictions of the SHOLrnenvelope.rnIn addition to the pilot-in-the-loop studies, the SAIFrnproject has also considered how CFD-generatedrnship airwake models can be analysed early in thernconcept ship design phase, in order to provide arnmore optimal ship design for aircraft operations. Thernflexibility of the SAIF simulation architecture alsornallows the study of Maritime Unmanned Air Vehiclern(MUAV) launch and recovery operations from navalrnvessels to be investigated, re-using many of thernmodels developed for the SHOL simulation.rnSignificant benefits can be achieved through thernemployment of simulation techniques in the study ofrnmaritime rotorcraft operations, and the SAIF projectrnaims to deliver increased levels of safety through arncost-effective combination of simulation and flightrntest activities. The project also aims to make therntechnology more affordable through re-use acrossrnthe many ship and air platform domains, and byrnencouraging international collaboration.......

【作者名称】: Ian Cox, Bryan Finlay, Graham Turner, John Duncan
【作者单位】: Maritime Division SEA (Group) Ltd Bristol, UK ian.cox@sea.co.uk, rnRotorcraft Vehicle Technology Defence Science & Technology Laboratory Farnborough, UKrnbafinlay@dstl.gov.uk, rnSimulation & Training QinetiQ Ltd Bedford, UK gpturner@qinetiq.com, rnSimulation Based Acquisition & Technical ComputingrnDefence Equipment & SupportrnBristol, UK dessesea-sba@mod.uk
【关 键 词】: The Ship Air Interface Framework (SAIF) Project:Dynamic Challenges
【会议名称】: Maritime operations of rotorcraft
【期刊论文数据库】: [DBS_Articles_01]
【期刊论文编号】: 101,026,054
【摘要长度】: 2,973
【会议地点】: London(GB)
【会议组织】: Maritime Division SEA (Group) Ltd Bristol, UK ian.cox@sea.co.uk;rnRotorcraft Vehicle Technology Defence Science & Technology Laboratory Farnborough, UKrnbafinlay@dstl.gov.uk;rnSimulation & Training QinetiQ Ltd Bedford, UK gpturner@qinetiq.com;rnSimulation Based Acquisition & Technical ComputingrnDefence Equipment & SupportrnBristol, UK dessesea-sba@mod.uk;
【会议时间】: 2008
【上篇论文】: 外文会议 - Aeromobile Air Transport System Design and Testing
【下篇论文】: 外文会议 - WHY AND HOW MASTERING AN INCREMENTAL AND ITERATIVE SOFTWARE DEVELOPMENT PROCESS

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