摘要
本文介绍在多处理机系统上实现双转子涡喷发动机的实时仿真。主控机为 PC2 86微机 ;并行处理机由 4个阵元机组成 ,阵元机选用微信号处理器 TMS32 0 2 0 ;A/D、D/A作为半实物仿真试验的用户接口。对发动机气动热力学模型算法进行“分割”,将 Jacobi阵各列的元素分配在 4个阵元机上并行计算。实时仿真支持软件管理各阵元机上程序模块的同步执行及数据通讯。
A real-time simulator of a two-spool turbojet is introduced,which is implemented with a parallel-processor/microcomputer system.A PC286 microcomputer is used as the host computer,and four TMS32020 digital signal processors are chosen as processing units of the parallel system.The A/D and D/A boards serve as the interfaces of the hardware-in-the-loop simulation of the engine control system.For the parallel processing,it is necessary to partition the aerothermodynamic model of the two-spool turbojet.The elements of Jacobian matrix of Newton-Raphson′s iterative method are calculated parallelly in the 4 processing units.The whole real-time simulation was carried out under the control of the simulation support software,which guaranteed synchronous operation and communication between different processing units,A/D,D/A,the display,and the storage.The real-time engine simulator has been applied to the hardware-in-the-loop simulation for an engine digital control system.The simulation frame cycle time is 29 6 milliseconds.
出处
《航空动力学报》
EI
CAS
CSCD
北大核心
1993年第4期368-370,共3页
Journal of Aerospace Power
