【摘 要】
：
建立了飞行器助推-滑行式燃料最优真空飞行轨迹的最优控制模型,给出了一种更为简单、直观的内点约束条件和横截条件的推导方法,讨论了高效且更为稳定的数值计算方法,提出了两
论文部分内容阅读
建立了飞行器助推-滑行式燃料最优真空飞行轨迹的最优控制模型,给出了一种更为简单、直观的内点约束条件和横截条件的推导方法,讨论了高效且更为稳定的数值计算方法,提出了两种应用模式,通过与连续推力式和脉冲式飞行方案的比较,说明这种设计方法在节省燃料方面具有优势。
An optimal control model of the optimal vacuum flight path of the propellant-taxiing fuel is established. A more simple and intuitive method for deriving the constraint and cross-section conditions of the inner point is given. The method is more efficient and stable , Two application modes are proposed. Compared with the continuous thrust and pulse flight schemes, this design method shows that this design method has the advantage of saving fuel.
其他文献
Background Previous reports indicated that mutations in the adenosine triphosphate (ATP)-binding cassette transporter A3 (ABCA3) cause fatal respiratory failure
Background There is a significant association between obesity and breast cancer,which is possibly due to the expression of leptin.Therefore,it is important to c
Prostate specific antigen (PSA) has a wide clinical use for the early detection of prostatic carcinoma (PCa); however,it has never been a perfect marker due to
A female patient diagnosed with acute myelocytic leukemia M5a (AML-M5a) relapsed 986 days after her allogeneic peripheral blood stem cell transplantation (allo-
Phosphorus (P) deficiency is a major limitation for plant growth and development.Among the wide set of responses to cope with low soil P,plants increase their l
Background Coronary stents are widely used in percutaneous coronary intervention (PCI) procedures.We aimed to explore the incidence,predictors and characteristi
Background Interleukin-17 (IL-17),which exerts strong pro-inflammatory effects,has emerged as an important mediator in inflammation-associated cancer.The aim of
针对全尺寸的吸气式高超声速飞行器的低阶弹性弯曲模态极易被控制和扰动输入激发的特点,提出了一种基于准定常激波膨胀波理论进行前体处于振动条件下的气流参数计算方法,然后
The solid pseudopapillary tumors of the pancreas (SPTP) are rare tumors,which are commonly found in adolescent women.Radical surgical resection of the primary t
Background Alveolar echinococcosis located in the adrenal gland can be considered a rare and aggressive infestation that radiologically and macroscopically mimi