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仿鸟类扑翼飞行器研究进展

动力学与控制学报 2024年第4期22卷 1-15页

作者：赵晓伟曾东鸿占英宝音贺西清华大学航天航空学院北京100084 内蒙古大学电子信息工程学院呼和浩特010021

仿生扑翼飞行器有着优异的气动性能和灵活的飞行能力,在军民领域均有广泛的应用前景,学者们在原理样机研制、扑翼气动机理、驱动机构、飞行控制等多领域取得了一系列重要进展.本文从总体设计方法、驱动机构设计与优化、气动机理等方面... 详细信息

仿生扑翼飞行器有着优异的气动性能和灵活的飞行能力,在军民领域均有广泛的应用前景,学者们在原理样机研制、扑翼气动机理、驱动机构、飞行控制等多领域取得了一系列重要进展.本文从总体设计方法、驱动机构设计与优化、气动机理等方面综述了仿鸟类扑翼飞行器技术的发展历程与研究进展.首先,从扑翼总体设计方法入手,总结了仿鸟类扑翼飞行器仿生构型,归纳了总体设计参数估算方法;其次,综述了多种构型曲柄连杆机构在扑翼驱动中的应用与优缺点;接着总结了扑翼气动机理研究的实验方法与数值计算方法,分析了不同扑翼气动算法针对不同应用场景在计算成本和准确度方面的优劣情况;最后,对仿鸟类扑翼飞行器系统设计研究现状进行总结,针对原理样机研制过程提出展望.

关键词：扑翼飞行器仿生构型总体设计驱动机构气动机理

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连续小推力轨迹优化间接法研究进展综述

宇航学报 2024年第7期45卷 995-1007页

作者：武迪郭祥蒋方华宝音贺西李俊峰清华大学航天航空学院北京100084

针对空间探测中连续小推力轨迹优化,总结了间接法在最优控制理论、初值估计和同伦延拓方法等方面的研究进展。首先介绍了连续小推力轨迹优化问题的建模及其相应的最优控制问题的状态方程、约束方程和性能指标,对比了两类主要优化方法,... 详细信息

针对空间探测中连续小推力轨迹优化,总结了间接法在最优控制理论、初值估计和同伦延拓方法等方面的研究进展。首先介绍了连续小推力轨迹优化问题的建模及其相应的最优控制问题的状态方程、约束方程和性能指标,对比了两类主要优化方法,即直接法和间接法的求解思路与优缺点。随后总结了轨迹优化初步设计、间接法初值估计以及同伦延拓方面的研究进展,探讨了智能优化和深度学习在轨迹优化间接法中的应用,进一步结合当前大规模任务规划、实时最优控制等需求讨论了间接法的应用。最后,对连续小推力轨迹优化间接法的发展展望进行了总结。

关键词：空间探测连续推力间接法打靶法初值估计同伦延拓

Timeline Club:An optimization algorithm for solving multiple debris removal missions of the time-dependent traveling salesman problem model

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Astrodynamics 2022年第2期6卷 219-234页

作者： Nan Zhang Zhong Zhang hexi baoyin School of Aerospace Engineering Tsinghua UniversityBeijing 100084China

With the increase of space debris,space debris removal has gradually become a major issue to address by worldwide space *** debris removal missions,in which multiple debris objects are removed in a single mission,are an economical approach to purify the space *** missions can be considered typical time-dependent traveling salesman problems(TDTSPs).In this study,an intelligent global optimization algorithm called Timeline Club Optimization(TCO)is proposed to solve multiple debris removal missions of the TDTSP *** adopts the traditional ant colony optimization(ACO)framework and replaces the pheromone matrix of the ACO with a new structure called the Timeline *** Timeline Club records which debris object to be removed next at a certain moment from elitist solutions and decides the probability criterion to generate debris sequences in new *** hypothetical scenarios,the Iridium-33 mission and the GTOC9 mission,are considered in this *** results show that TCO offers better performance than those of beam search,ant colony optimization,and the genetic algorithm in multiple debris removal missions of the TDTSP model.

关键词： Timeline Club global optimization multiple debris removal time-dependent traveling salesman problem(TDTSP)

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目标小行星自主光学搜索策略

清华大学学报（自然科学版） 2024年第9期64卷 1555-1564页

作者：穆硕刘辉宋家隆韩柠段耀武柳澍暄宝音贺西清华大学航天航空学院北京100084 北京控制与电子技术研究所北京100038

近些年来,小行星研究备受关注。小行星不仅具有重要的科研与经济价值,同时也是威胁地球安全的因素之一。对于直径较小或观测数据较少的小行星,其探测和防御任务更具挑战。该文结合中国首个小行星撞击任务,针对定轨误差较大的小直径目标... 详细信息

近些年来,小行星研究备受关注。小行星不仅具有重要的科研与经济价值,同时也是威胁地球安全的因素之一。对于直径较小或观测数据较少的小行星,其探测和防御任务更具挑战。该文结合中国首个小行星撞击任务,针对定轨误差较大的小直径目标小行星,利用光学相机开展撞击任务最终阶段的目标搜索方案研究。该文考虑光学相机性能、星载计算性能以及机动时间等限制因素,设计了一种可最大化单次成像面积的目标搜索方案,并给出了不同搜索次数可覆盖面积的解析表达式,利用几何关系证明推导了不同视野位置的递推计算方法。Monte Carlo数值仿真结果验证了方案的有效性,其搜索成功率可达100%。

关键词：小行星探测小行星撞击光学搜索区域搜索

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Measuring the mechanical properties of small body regolith layers using a granular penetrometer

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Astrodynamics 2023年第1期7卷 15-29页

作者： Bin Cheng Erik Asphaug Yang Yu hexi baoyin School of Aerospace Engineering Tsinghua UniversityBeijing 100084China Lunar&Planetary Laboratory University of ArizonaTucsonAZ 85721USA School of Aeronautic Science and Engineering Beihang UniversityBeijing 100191China

Small bodies in the solar system are known to be covered by a layer of loose unconsolidated soil composed of grains ranging from dusty sands to rugged *** geophysical processes have modified these regolith layers since their ***,the landforms on regolith-blanketed surfaces hold vital clues for reconstructing the geological processes occurring on small ***,the mechanical strength of small body regolith remains unclear,which is an important parameter for understanding its dynamic ***,regolith mechanical properties are key factors for the design and operation of space missions that interact with small body *** granular penetrometer,which is an instrument that facilitates in situ mechanical characterization of surface/subsurface materials,has attracted significant ***,we still do not fully understand the penetration dynamics related to granular regolith,partially because of the experimental difficulties in measuring grain-scale responses under microgravity,particularly on the longer timescales of small body *** this study,we analyzed the slow intrusion ofa locomotor into granular matter through large-scale numerical simulations based on a soft sphere discrete element *** demonstrated that the resistance force of cohesionlessregolith increases abruptly with penetration depth after contact and then transitions to a linear *** scale factor of the steady-state component is roughly proportionalto the internal friction of the granular materials,which allows us to deduce the shearstrength of planetary soils by measuring their force depth *** cohesion is included,due to the brittle behavior of cohesive materials,the resistance profile is characterized by a stationary state at a large penetration *** saturation resistance,which represents the failure threshold of granular materials,increases with the cohesion strength of the *** positive correlation pr

关键词： small body regolith granular penetrometer small body exploration granular dynamics

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卫星磁姿态控制方法与算法综述

动力学与控制学报 2024年第1期22卷 1-21页

作者：穆硕占英宝音贺西清华大学航天航空学院北京100084 内蒙古大学电子信息工程学院呼和浩特010021

自太空探索之初,姿态控制磁控系统便因其体积小、质量轻、成本低、可靠性高等优点被广泛应用于各类轨道卫星.近些年,随着微小卫星技术的迅猛发展,姿态控制磁控系统满足了微小卫星对质量、空间等资源的限制,成为了学者们研究的热点.本文... 详细信息

自太空探索之初,姿态控制磁控系统便因其体积小、质量轻、成本低、可靠性高等优点被广泛应用于各类轨道卫星.近些年,随着微小卫星技术的迅猛发展,姿态控制磁控系统满足了微小卫星对质量、空间等资源的限制,成为了学者们研究的热点.本文综述了自20世纪60年代以来卫星尤其是微小卫星所采用的主要磁姿态控制方法和算法,包括飞轮起旋与卸载算法、被动以及主动磁姿态控制算法等.其中主动磁姿态控制算法包括主动磁阻尼算法、磁控与自旋、定转速飞轮、重力梯度力矩结合的算法以及纯磁控算法.最后对该研究进行了总结与展望.

关键词：卫星磁控飞轮起旋与卸载被动磁控主动磁阻尼磁控与其他方式结合纯磁控

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小天体智能附着技术研究进展

深空探测学报（中英文） 2024年第3期11卷 213-224,I0003页

作者：梁子璇鲁冰洁崔平远朱圣英徐瑞葛丹桐宝音贺西邵巍北京理工大学深空探测技术研究所北京100081 深空自主导航与控制工信部重点实验室北京100081 清华大学航天航空学院北京100084 青岛科技大学自动化与电子工程学院青岛266100

面向小天体探测与开发稳健附着的需求,结合国内外小天体附着探测任务,分析了小天体智能附着技术的需求,综述了目前的研究进展。回顾了小天体附着探测的相关工程任务、介绍了小天体传统的刚性附着模式与新型智能柔性附着的概念、梳理了... 详细信息

面向小天体探测与开发稳健附着的需求,结合国内外小天体附着探测任务,分析了小天体智能附着技术的需求,综述了目前的研究进展。回顾了小天体附着探测的相关工程任务、介绍了小天体传统的刚性附着模式与新型智能柔性附着的概念、梳理了小天体智能附着技术的需求,在此基础上从动力学、任务规划、感知、导航、制导与控制等方面归纳总结了智能附着技术的研究进展,对小天体附着技术的发展趋势进行了展望。

关键词：小天体智能附着柔性附着任务规划导航制导与控制

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Sequence optimization for multiple asteroids rendezvous via cluster analysis and probability-based beam search

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Science China(Technological Sciences) 2021年第1期64卷 122-130页

作者： LI HaiYang baoyin hexi School of Aerospace Engineering Tsinghua UniversityBeijing 100084China

It is of great significance to visit multiple asteroids in a space *** this paper,the multiple asteroids mission optimization is implemented using cluster analysis and probability-based beam *** is performed to select the first asteroid to *** cluster algorithms are investigated and affinity propagation is *** four beam search algorithms that are deterministic beam search and three probability-based beam search variants,probabilistic beam search,ant-colony beam search,and evolving beam search,are applied to search for the rendezvous *** beam search as a heuristic tree search algorithm is widely applied in multitarget sequence optimization,but it has an obvious drawback of the conflict between the number of pruned nodes and the possibility of finding optimal solutions,which can be improved by probability-based beam *** three probability-based beam search,the ant-colony beam search has a learning mechanism,and evolving beam search is constructed based on ant-colony beam search and has an evolutionary *** show that the introduction of randomness can improve beam search,and beam search variants with the learning and evolutionary mechanism have an excellent performance.

关键词： interplanetary trajectory optimization multi-target mission cluster analysis probability-based beam search

Robust extended Kalman filter with input estimation for maneuver tracking

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Chinese Journal of Aeronautics 2018年第9期31卷 1910-1919页

作者： Yuzi JIANG hexi baoyin School of Aerospace Engineering Tsinghua University

This study investigates the problem of tracking a satellite performing unknown continuous maneuvers. A new method is proposed for estimating both the state and maneuver acceleration of the satellite. The estimation of the maneuver acceleration is obtained by the combination of an unbiased minimum-variance input and state estimation method and a low-pass filter. Then a threshold-based maneuver detection approach is developed to determinate the start and end time of the unknown maneuvers. During the maneuvering period, the estimation error of the maneuver acceleration is modeled as the sum of a fluctuation error and a sudden change error. A robust extended Kalman filter is developed for dealing with the acceleration estimate error and providing state estimation. Simulation results show that, compared with the Unbiased Minimum-variance Input and State Estimation(UMISE) method, the proposed method has the same position estimation accuracy, and the velocity estimation error is reduced by about 5 times during the maneuver period. Besides, the acceleration detection and estimation accuracy of the proposed method is much higher than that of the UMISE method.

关键词： Extended Kalman filters Input estimation Maneuver detection Maneuver tracking Orbit determination