电磁发射的出口速度及负载质量变化对导轨热量的影响

为分析不同发射出口速度、不同发射负载质量对导轨积累热量的影响，建立了导轨温度场模型，计算了导轨各点温度变化过程，并和光纤光栅温度传感器测量结果对比，验证了模型及测量结果的正确性。在此基础上，设计并进行了三种类型实验，分析了在不同发射速度、不同发射负载质量以及相同发射能级不同发射速度下的导轨热量积累差异。该结论为确定连发间隔、导轨冷却设计提供了有效参考。
In order to analyze the effect of armature′s velocity and quality changing on the accumulated thermal energy of rail, the thermal field model of rail was established and the rail temperature variation was calculated. Compared with the experimental results measured by FBG (fiber Bragg grating) temperature sensors, the correctness of the model and the measurement results were verified. On this basis, three types of experiments were designed to analyze the differences accumulated from the thermal energy on rail under different velocity, quality and the same energy level in different velocity. Experimental conclusions can provide valid references for determining the interval between two launches and designing the cooling system.