摘要: A scramjet engine combustion efficiency measure system was designed. The combustion efficiency was measured by chromatography method, and the results of chromatography method were compared with those of temperature method. The results indicate that the combustion efficiency measured by chromatography method was 80.7%, lower than the combustion efficiency of 84.5% measured by temperature method; the combustion efficiency could be measured more precisely by chromatogram method than by temperature method. The combustion efficiency measure system based on chromatogram method can work well, and thus can be used to measure the combustion efficiency of scramjet engine.
摘要: 基于自主设计的TTP/C(时间触发协议)总线控制器,提出了开放式DEEC(发动机数字式电子控制器)的冗余架构,将其划分为输入、核心计算及输出3种智能节点,并制定了各个智能节点的任务调度规划图.设计了基于DSP(digital signal processor)+FPGA(field-programmable gate array)的智能节点硬件平台,在此基础上完成各智能节点的软件设计.最后构建了开放式DEEC的PIL(process in the loop)仿真测试平台,以发动机模型为控制对象,展开了状态调节试验和总线故障注入试验.试验结果证明该开放式DEEC是可行的,并具有良好的重构特性.