[author_cn_name].[cn_title][J].空军工程大学学报:自然科学版,[year_id],[volume]([issue]):[start_page]-[end_page] 增强型导弹四极场电磁轨道发射器研究-Research on Missile’s Augmented Electromagnetic Rail Launchers by Quadrupole Magnetic Field
文章摘要
杨志勇1,2,冯刚1,刘瑜倩1,刘少伟1.增强型导弹四极场电磁轨道发射器研究[J].空军工程大学学报:自然科学版,2019,20(3):77-83
增强型导弹四极场电磁轨道发射器研究
Research on Missile’s Augmented Electromagnetic Rail Launchers by Quadrupole Magnetic Field
  
DOI:
中文关键词: 导弹电磁发射器  四极场电磁轨道发射  整体增强  分段增强  能量转换效率  发射推力
英文关键词: missile electromagnetic launcher  electromagnetic rail launch by quadrupole magnetic field  entire augmented  segmented augmented  energy conversion efficiency  propulsive force
基金项目:
作者单位
杨志勇1,2,冯刚1,刘瑜倩1,刘少伟1 1.空军工程大学防空反导学院,西安,7100512.95876部队,甘肃张掖,734100 
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中文摘要:
      为满足导弹发射过程中大推力、高能量、特殊电磁环境的实际需求,降低驱动电流量级,提出了整体增强型导弹四极场电磁轨道发射器模型和分段增强型导弹四极场电磁轨道发射器模型。理论分析了2种模型的能量转换效率,结合具体算例进行了对比说明;利用有限元分析法对导轨内电流分布、模型推力性能、发射组件受力特性进行了研究。结果表明:分段增强型的能量转换效率较整体增强型高,且随分段数目的增加而提高;在保护板作用下,2种模型中导轨内电流的邻近效应得以缓解;2种增强模型的推力大小相当,且较基本型均有较大提升,因而在保证所需发射推力的情况下可以减小驱动电流量级;整体增强型中导轨和保护板受力较大,而分段增强型的导轨和保护板受力较小,且其发射过程中存在周期性变化。2种增强模型均不同程度地优化了发射器的发射性能,可为导弹电磁发射工程化实践提供理论指导;分段增强型的综合性能更优于整体增强型。
英文摘要:
      To meet the practical needs of large thrust, high energy and special electromagnetic environment in the process of the missile launching and reducing the magnitude of the driving current, a mode of the missile’s entire augmented electromagnetic rail launcher by quadrupole magnetic field and a mode of the missile’s segmented augmented electromagnetic rail launcher by quadrupole magnetic field are proposed. The energy conversion efficiencies of two models are analyzed theoretically and recounted by the specific example. Current distributions in rails, thrust performances of models and loading characteristics of the launcher’ modules are studied by the finite element analysis. The results show that the segmented augmented model’s energy conversion efficiency is higher than entire augmented model’s, and increases with the number of segments. Under the action of the protector plate, the proximity effects of currents in rails of two models are alleviated. Propulsive force of augmented models is higher than that of the basic model, the driving current magnitude can be reduced to guarantee the same propulsive force. The rail and the protector plate of segmented augmented model take less force, and they are periodic changes in the launching process, while the rail and protector plate of the entire augmented model take more. These augmented models both optimize the launcher’s performances in varying degrees. This can apply the missile electromagnetic launch engineering practice with theoretical guidance The comprehensive performances of the segmented augmented model are better than that of the entire augmented model.
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