强激光与粒子束, 2015, 27 (4): 045005, 网络出版: 2015-04-14
螺栓紧固型轨道发射器预紧力
Pre-compression of bolton rail-launcher
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%.
吴立周, 古刚, 耿昊, 赵玺, 高博, 邱群先. 螺栓紧固型轨道发射器预紧力[J]. 强激光与粒子束, 2015, 27(4): 045005. Wu Lizhou, Gu Gang, Geng Hao, Zhao Xi, Gao Bo, Qiu Qunxian. Pre-compression of bolton rail-launcher[J]. High Power Laser and Particle Beams, 2015, 27(4): 045005.