基于灰色模型的电磁轨道发射装置温度研究

在电磁发射过程中导轨温度受众多因素影响,而其中部分因素很难进行精确分析,为此运用灰色系统的分析方法对电磁轨道发射装置温度进行研究。为获取模型所需实验数据,搭建电磁轨道发射装置测试系统,并借此测量发射过程中的电流、导轨温度、出口速度等数据。由于测量仪器限制,借助ANSYS有限元仿真对测得的导轨温度数据进行修正,以获得导轨内表面温度。基于经典GM(1,N)模型与Simpson公式,提出一种改进型灰色模型,并以此方法对导轨温度展开研究,进一步选取同能级试验,对不同位置处各因素温升贡献度进行讨论。结论为进一步深入研究导轨温度提供参考和依据。

Research on temperature of electromagnetic rail launcher based on gray model

During the electromagnetic launch process, the temperature of the rail is affected by many factors and it is difficult to analyze some factors accurately. Based on this, the gray system was used to study the temperature of the electromagnetic launcher. In order to obtain the experimental data needed for the gray model, the electromagnetic launcher data collection system was built, and such data as the current, the rail temperature, the launch speed and other factors concerned were collected. Due to the limitations of measuring instruments, the ANSYS finite-element simulation was adopted to correct the measured rail temperature data to obtain the inner surface temperature of the rail. Based on the classical GM(1,N) and Simpson formula, an improved gray model was proposed, and the rail temperature was studied by this method. The same energy level test was conducted to discuss the contribution of temperature rise of various factors at different locations. The conclusion provides a reference and basis for further research on the temperature of the rail.