Pre-compression of bolton rail-launcher
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摘要: 轨道发射器通电轨道要承受很大的电磁扩张力，为了控制发射器口径形变，避免烧蚀，通常要在发射装置的封装层上施加预紧力。针对具体发射装置，运用三维耦合场对不同螺栓预紧力下的口径形变进行了计算，并进行了相关试验。试验结果表明，须将口径形变百分比控制在0.61%以内，方可实现无烧蚀发射。Abstract: Large electromagnetic force is put on rails of the Rail-Launcher, and the encapsulation of the launcher is always preloaded for caliber control and ablation avoidance. For one launch instrument, the caliber change under different pre-compression with bolt was calculated in 3-D coupling field, based on which some experiments were carried out. The result shows that the launch without ablation could be realized if the caliber change percentage is limited within 0.61%.
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Key words:
- rail launch /
- pre-compression /
- coupling field /
- plasma
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