考虑起竖角度曲线影响的俯仰机构优化设计
Optimal Design of the Pitching Mechanism Considering the Influence of Erecting Angle Curves
袁毅 1邓文竹 1吴不得 1王玉奇 1鲁伟 1丁宇立1
作者信息
- 1. 中国兵器工业集团江山重工研究院有限公司,湖北襄阳 441057
- 折叠
摘要
起竖角度曲线直接影响火箭俯仰机构起竖过程角加速度变化,进而影响俯仰机构瞬时推力及瞬时功率的大小,并最终影响俯仰机构的最佳布置.鉴于俯仰机构对于启停平顺及起竖时间等要求,起竖角速度大小不能忽略,提出考虑起竖角度曲线影响的俯仰机构优化设计方法.分析了典型起竖角度曲线的关键参数、限制条件以及起竖角度曲线对电动推杆瞬时推力和瞬时功率的影响,建立了考虑起竖角度曲线影响的俯仰机构优化数学模型;应用Matlab软件中基于序列二次规划(Se-quence Quadratic Programming,SQP)算法的fmincon函数,求出最佳俯仰机构布置及起竖角度曲线.某火箭发射装置起竖试验结果表明,考虑起竖角度曲线影响的俯仰机构优化设计可以有效降低电动推杆最大功率,但对电动推杆最大推力影响不大.
Abstract
The erecting angle curve directly affects the angle acceleration of the pitching mechanism of the rocket,and then directly affects the instantaneous thrust and instantaneous power of the pitching mechanism,ultimately affects the best arrangement of the pitching mechanism.As the requirements of the pitching mecha-nism for smooth start & stop and erecting time,the angular acceleration of the pitching mechanism can't be ig-nored,and the optimal design of the pitching mechanism considering the influence of the erecting angle curve was proposed.The key parameters of the erecting angle curve and its restrictions were analyzed,the influence of the vertical angle curve on the instantaneous thrust & power of the electric cylinder was analyzed,the mathemati-cal mode for the optimization of the pitching mechanism considering the influence of erecting angle curve was es-tablished,and the optimal pitch mechanism layout and the erecting angle curve were obtained by using the fmin-con function based on the sequential quadratic programming(SQP)algorithm in Matlab sofware.Erecting test re-sults of a rocket launcher show that the optimal design of the pitching mechanism considering the influence of the erecting angle curve can effectively reduce the maximum power of the electric pushrod,rather than reduce the maximum thrust of the electric pushrod.
关键词
火箭发射装置/俯仰机构/起竖角度曲线/SQP算法/fmincon函数Key words
Rocket launcher/Pitching mechanism/Erecting angle curve/SQP algorithm/Fmincon function引用本文复制引用
出版年
2024
NETL
NSTL
万方数据