柴油机缸内瞬态辐射热流传感器的研究与应用

Study on Improvement of Genetic Programming Based on the Macro-mutation

柴油机缸内的火焰辐射受诸多因素的影响，用理论分析法来确定它是相当困难的。在现阶段，实验研究仍然是一个重要的手段。针对柴油机缸内辐射传热过程的特点，本文基于热电现象和表面温度法的原理，研制了一种瞬态辐射传感器，并设计了一种测量系统。利用该传感器和测量系统对一台直喷式柴油机缸内的火焰辐射流量进行了实测，将测量结果与已有的研究成果进行了对比。

Directed against the phenomena of the slower convergence,this paper presents genetic programming based on the macro-mutation.The main goal is to improve genetic programming from the aspect of mutation.Two ways are put forward to study the feasible and reasonable way for improving the convergence performance of genetic programming.The example given in this paper shows that this method is valid and reasonable,and it has outstanding affect on improving the convergence specific property of genetic programming.