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飞行仿真的作用在现代飞机系统研制中日趋重要。按照惯例对于战斗机来说,飞行仿真只在某些子系统(飞行控制、航空电子设备)的设计阶段中被利用。当前的发展趋势表明,未来的仿真系统可以在飞机的完善设计、市场销售、训练以及战术部署计划等方面大显身手。根据仿真协会的附加专项任务验收条例,要求飞行仿真具有一定的逼真度,即要求仿真器在执行同类任务时能够同真实飞行器一样作出响应,从而将飞机的研制和部署经费减至最低,并降低有关的飞行试验项目的风险性。作为对这些提高仿真逼真度要求的响应,诺斯罗普公司采用了一种能将飞行试验与仿真一体化的方法来增强仿真精度。采用这种方法可对飞行试验和仿真数据自动进行比较,如果许可的话,它还可以识别出为提高飞机仿真的代表而变更的特定参数。这种方法表明诺斯罗普公司已具备了有效地将飞行试验结果集成到实时仿真系统中的验证和提高仿真飞机性能的能力。
The role of flight simulation is becoming more and more important in the development of modern aircraft systems. Traditionally, flight simulations have been utilized only in the design phase of certain subsystems (flight control, avionics). The current trend shows that future simulation systems can work well in terms of aircraft design, marketing, training and tactical deployment plans. According to the simulation association’s additional special task acceptance regulations, the requirements of the flight simulation has a certain degree of fidelity, which requires the simulator to perform the same tasks in the same real aircraft can respond to the aircraft to the development and deployment of funds to a minimum, and reduce Risks related to flight test projects. In response to these demands for increased simulation fidelity, Northrop used a method that integrates flight testing with simulation to enhance simulation accuracy. Using this method, flight test and simulation data are automatically compared, and if allowed, it identifies specific parameters that are changed to enhance the representation of the aircraft simulation. This approach shows that Northrop has the ability to effectively integrate flight test results into real-time simulation systems to validate and enhance the performance of the simulated aircraft.