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个人信息Personal Information
教授
招生学科专业：
控制科学与工程 -- 【招收博士、硕士研究生】 -- 航天学院
航空宇航科学与技术 -- 【招收博士、硕士研究生】 -- 航天学院
电子信息 -- 【招收博士、硕士研究生】 -- 航天学院
机械 -- 【招收博士、硕士研究生】 -- 航天学院
毕业院校：哈尔滨工业大学
学历：哈尔滨工业大学
学位：工学博士学位
所在单位：航天学院
办公地点：江宁校区D11号楼A503
联系方式：025-84896039
电子邮箱：
Uncertainty quantification for mars atmospheric entry using polynomial chaos and spectral decomposition
点击次数：
所属单位：航天学院
发表刊物：Guidance, Navigation Control Conf.
摘要：A hybrid computational approach is developed for quantifying the propagation of the uncertainty in state trajectories of a low-lift Mars entry vehicle due to the uncertainty in initial conditions and other system parameters. The framework is built on the generalized polynomial chaos expansions and spectral decomposition. First, stochastic dynamical systems are transformed into equivalent deterministic dynamical systems in higher dimensional space. Then, the evolution of uncertainty due to initial conditions, ballistic coefficient, lift-to-drag ratio, and atmospheric density is quantified based on statistical property. Finally, we demonstrate that the hybrid computational approach is able to quantify propagation of uncertainty, in mars entry dynamics profile, with the same order of accuracy as the Monte-Carlo methods but with more computational efficiency. © 2018, American Institute of Aeronautics and Astronautics Inc, AIAA. All right reserved.
是否译文：否
发表时间：2018-01-01
合写作者：Jiang, Xiuqiang
通讯作者：李爽