装备体系组合发展规划是一项复杂的系统工程,具有重要的军事意义和研究价值。考虑到武器装备体系的关联性和复杂性,从体系的角度出发,提出一种装备体系组合发展规划方法,为装备发展论证提供思路。首先,基于装备的不同属性以及关联关系,...装备体系组合发展规划是一项复杂的系统工程,具有重要的军事意义和研究价值。考虑到武器装备体系的关联性和复杂性,从体系的角度出发,提出一种装备体系组合发展规划方法,为装备发展论证提供思路。首先,基于装备的不同属性以及关联关系,构建了装备体系异质网络模型并识别提取功能链,为后续装备发展规划建模提供基础;其次,考虑到装备发展的不确定性,建立了多阶段装备发展规划模型;然后,设计一种双重深度Q网络(double deep Q-network,Double DQN)算法来求解模型;最后,以典型装备体系发展规划为例进行演示计算,验证了所提方法的有效性和可行性。展开更多
A new radial friction welding technology of 30 mm shell's band is introduced.Bands are assembled to shell bodies without notches by using the process.The width of heat-affected zone(HAZ) is small,and the microstru...A new radial friction welding technology of 30 mm shell's band is introduced.Bands are assembled to shell bodies without notches by using the process.The width of heat-affected zone(HAZ) is small,and the microstructure on steel side is incomplete quenching while that on cooper side is grain refining.The shear-strength of joint exceeds 200 MPa.The result of firing test indicates that radial friction welding can satisfy the assembly requirements of shell bands.展开更多
文摘装备体系组合发展规划是一项复杂的系统工程,具有重要的军事意义和研究价值。考虑到武器装备体系的关联性和复杂性,从体系的角度出发,提出一种装备体系组合发展规划方法,为装备发展论证提供思路。首先,基于装备的不同属性以及关联关系,构建了装备体系异质网络模型并识别提取功能链,为后续装备发展规划建模提供基础;其次,考虑到装备发展的不确定性,建立了多阶段装备发展规划模型;然后,设计一种双重深度Q网络(double deep Q-network,Double DQN)算法来求解模型;最后,以典型装备体系发展规划为例进行演示计算,验证了所提方法的有效性和可行性。
文摘A new radial friction welding technology of 30 mm shell's band is introduced.Bands are assembled to shell bodies without notches by using the process.The width of heat-affected zone(HAZ) is small,and the microstructure on steel side is incomplete quenching while that on cooper side is grain refining.The shear-strength of joint exceeds 200 MPa.The result of firing test indicates that radial friction welding can satisfy the assembly requirements of shell bands.
