Characteristics of high pulsed current electromagnetic rail launcher
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摘要: 为获得大电动力、低温升、高结构强度的轨道型电磁发射器，分析了脉冲大电流电磁轨道发射装置的工作性能，对电感梯度、通流能力进行了判定，并分析了重力、电枢电动力与螺栓预紧力共同作用下电磁轨道发射装置的力学特性。结果表明：在导轨长度及截面宽度固定的情况下，截面厚度越小，电感梯度越大；截面厚度越大，温升越低。为了获得大电感梯度、低温升并考虑材料成本，应合理设计各个部件的形状及尺寸。Abstract: In order to get a high-power, heat resistant, high strength rail-type electromagnetic launcher, the working performance of a pulsed current electromagnetic rail launcher was analyzed to determine the inductance gradient and flow capacity. The electromagnetic force, armature, and screw pre-tightening force under combined action of mechanical characteristics of the electromagnetic rail-launcher were analyzed, from which appropriate conclusions were drawn to gather further insight on how a rail-type electromagnetic-launcher works to lay the foundations of the mechanism.
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Key words:
- electromagnetic launch /
- mechanical characteristics /
- rail /
- inductance gradient
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