Anew method in system design of ejecting devices of missiles is first presented.Some important points are dis-cussed,which guid the research and development of new ejecting devices of missileg,amd provid the foundatio...Anew method in system design of ejecting devices of missiles is first presented.Some important points are dis-cussed,which guid the research and development of new ejecting devices of missileg,amd provid the foundation flr thw design of mew ejecting device is provided.The system design includes the distribution of techmology specifica-tion,3-D solid modeling of ejecting devices of missiles im-ported from abroad,the design of pmeumatic device sys-tem,the design of ejecting mechanism system,the predic-tion of reliability and the experimental analysis,etc.展开更多
首先探究了融合式翼梢小翼倾斜角、高度以及安装角对民用运输机气动特性的影响。然后基于多区域自由变形(FFD,free form deformation)技术、拉丁超立方取样方法(LHS,latin hypercube sampling)、Kriging代理模型以及改进的粒子群算法构...首先探究了融合式翼梢小翼倾斜角、高度以及安装角对民用运输机气动特性的影响。然后基于多区域自由变形(FFD,free form deformation)技术、拉丁超立方取样方法(LHS,latin hypercube sampling)、Kriging代理模型以及改进的粒子群算法构建优化设计系统,对融合式翼梢小翼应用优化系统,通过对FFD控制体框架的合理布置,实现了多个控制框架对融合式翼梢小翼的自由变形参数化设计。优化设计结果表明,设计后的融合式翼梢小翼较原始构型减阻效果有明显改善。并通过与"翼尖延伸"、"涡扩散器"和"双叉弯刀"等3种翼尖装置进行调参对比分析,得出一些对翼尖装置设计具有参考价值的结论。展开更多
文摘Anew method in system design of ejecting devices of missiles is first presented.Some important points are dis-cussed,which guid the research and development of new ejecting devices of missileg,amd provid the foundation flr thw design of mew ejecting device is provided.The system design includes the distribution of techmology specifica-tion,3-D solid modeling of ejecting devices of missiles im-ported from abroad,the design of pmeumatic device sys-tem,the design of ejecting mechanism system,the predic-tion of reliability and the experimental analysis,etc.
文摘首先探究了融合式翼梢小翼倾斜角、高度以及安装角对民用运输机气动特性的影响。然后基于多区域自由变形(FFD,free form deformation)技术、拉丁超立方取样方法(LHS,latin hypercube sampling)、Kriging代理模型以及改进的粒子群算法构建优化设计系统,对融合式翼梢小翼应用优化系统,通过对FFD控制体框架的合理布置,实现了多个控制框架对融合式翼梢小翼的自由变形参数化设计。优化设计结果表明,设计后的融合式翼梢小翼较原始构型减阻效果有明显改善。并通过与"翼尖延伸"、"涡扩散器"和"双叉弯刀"等3种翼尖装置进行调参对比分析,得出一些对翼尖装置设计具有参考价值的结论。