摘要
本文采用单一微型计算机 (IBMPC/ 2 86 + 80 2 87协处理器 )对某型双轴加力式涡喷发动机进行实时模拟研究。经过对发动机部件特性的适当特殊处理以及应用诸如 80 2 86宏汇编和80 2 87浮点运算并行处理等软件设计技巧 ,很好地解决了实时数字模拟时的计算精度与计算速度之间的矛盾。数字仿真比较表明 :本文提供的发动机实时模拟器无论是稳态性能还是动态响应都能很好地反映出真实发动机的物理过程 。
A digital real time simulation by means of single micro computer has been developed for an actual two spool afferburning turbojet engine.In order to overcome the contradiction between the computation precision and the speed necessary to digital real time simulation technique,the characteristics of engine components have been reasonably simplified and modified and 80286 macro assembly,80287 float arithmetic parallel processing method and some programing techniques have been adopted.A non linear,large deviation digital real time simulation has been obtained.The results of this simulation are comparaed with the measured data.It is shown that its calculation accuracy and speed are suitable for the real time simulation.
出处
《航空动力学报》
EI
CAS
CSCD
北大核心
1991年第3期254-258,共5页
Journal of Aerospace Power
基金
国家自然科学基金资助项目
