RTW在某型直升机飞控系统半物理仿真中的应用

开发高性能可靠的飞控计算机是直升机研制的重要一步.在试飞之前,需要对飞控系统进行全面的仿真测试.基于Simulink的RTW工具箱和嵌入式VxWorks操作系统,提出一种进行飞控系统半物理仿真的方案.详细说明了仿真平台的组成、RTW的配置方法和生成实时仿真代码的过程.仿真时应用了RTW的外部模式,说明了其原理和具体配置方法.深入分析了RTW生成的目标文件中直升机模型信号量和参数的存取方式,并提出了一种可行的办法.最后给出仿真结果并验证了该方案的可行性,此方案已经应用于进一步的试飞工作中.

Application of RTW in a Helicopter Flight Control System Hardware-in-the-loop Simulation

Developing the high-powered flight control computer is one important step of helicopter development.Before flight test, it is necessary to make the comprehensive simulation test for flight control system.A project of Hardware-in-the-loop simulation for flight control system is brought forward,which is based on Matlab RTW toolbox and embedded VxWorks operation system.The makeup of simulation platform,configuration of RTW and the simulation real-time code generation are detailed explicated. RTW extern-mode is used in simulation.The theory, detailed configuration of extern-mode are detaild illuminated.The approach of access data from the helicopter model signals and parameters in RTW-generated target files is further analysed. One of the feasible ways and means is put forward.At the end,actual simulation results are given which validates the feasibility of the project.This project has been applied in further flight test.