欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
针对高超声速滑翔飞行器＂跳跃滑翔＂飞行时再入拉起段高度跨度大、大气密度变化剧烈的恶劣环境,提出基于高斯伪谱法的高超声速滑翔飞行器再入拉起段弹道规划方法。首先建立高超声速飞行器动力学模型,确立约束条件,然后选取驻点热流最小为目标函数,并根据再入拉起段环境将弹道分成两段,采用高斯伪谱法建立连接条件并分段优化。结果表明,该方法计算速度快,拟合的弹道满足各种约束,并且控制量变化平缓,实际飞行中容易实现。
英文摘要：
As the altitude and density of atmosphere change quickly in reentry and pull-up phase, a method of trajectory planning based on Gauss pseudo-spectral is proposed. Firstly, the dynamic model is built, as well as the restrains. Then, the minimum of heat flow is chosen as the objective function. A strategy of partition optimization is designed. The linkage has been set by Gauss suhs show that, the method calculates quickly and satisfies all the restrictions, pseudo-spectral. The re- and the control variable changes slowly and meets the demand of actual flight.
同期刊论文项目
同项目期刊论文
期刊信息
位置：