航空发动机数控系统综合仿真平台设计

综合现有软硬件资源,采用模块化方法设计了航空发动机数字电子控制系统综合仿真平台,其框架主要包括发动机模型系统、传感器信号模拟与处理、控制器快速原型等子系统.发动机模型系统采用集成仿真环境调用液压执行装置和发动机数学模型库方式设计;快速原型系统采用Matlab/Simulink环境下将控制程序封装成S-Function的方法设计;软件设计重点描述了混合编程与定时器编程技术.以某双轴涡扇发动机为应用对象,进行控制系统数字仿真、半物理模拟试验和台架试车,在相同控制参数下,仿真试验与台架试车结果相似,表明所设计综合仿真平台具有工程应用价值. 

Integrative simulation platform design for aero-engine digital electronic control system

Combined with existing software and hardware resources,integrative simulation platform for aero-engine digital electronic control system,which mainly includes aeroengine model subsystem,signal simulation and processing subsystem,controller rapid prototyping subsystem was designed with modular approach.Aero-engine model subsystem acts as a numerical simulation platform that calls aero-engine mathematical model library and mechanical hydraulic actuator mathematical model library.Rapid prototyping subsystem for controller runs in Matlab/Simulink environment,in which control code encapsulated into S-Function module.As key techniques in platform software design,mixed programming and WINDOWS timer programming method were described in detail.Applying the platform to a turbofan control system researchment,numerical simulation,semi-physical simulation and bed test results are consistent.It shows the platform is feasible and effective in engineering.