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学者姓名：钱霙婧
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Abstract ：
New three-phase composite structures reinforced synergistically by nano-fillers and macroscopic fibers have great application potential. This paper presents a general framework for material properties calculation and the free vibration analysis of three-phase composite shell structures. Based on this methodological system, the free vibration characteristics of three types of nano-enhanced functionally graded three-phase composite cylindrical shells are investigated. First, the equivalent mechanical properties of these three three-phase composites were evaluated using the Halpin-Tsai and Mori-Tanaka models. The governing equations for the cylindrical shells were derived based on the first-order shear deformation theory (FSDT) and Hamilton's principle. The equations were discretized using Galerkin's method and solved to obtain the natural frequencies and mode shapes. The finite element simulation results and existing literature verified the accuracy and reliability of the method in this paper. The synergistic effects of nano-reinforced fillers and macroscopic fibers on the free vibrations of these structures were also analyzed. Among them, the natural frequency of the three-phase composite cylindrical shells was the highest when graphene platelets (GPLs) were used as the nano-reinforced fillers, which was 150.32% higher than that of fiber-reinforced epoxy composite cylindrical shells. These studies provide theoretical guidance for the design and manufacture of such symmetric or antisymmetric structures in the future.
Keyword ：
three-phase composites three-phase composites cylindrical shell cylindrical shell free vibrations free vibrations material characteristics material characteristics
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| GB/T 7714 | Zhang, Wei , Duan, Jinqiu , Liu, Tao et al. A General Framework for Material Properties Calculation and the Free Vibration Analysis of New Three-Phase Composite Cylindrical Shell Structures [J]. | SYMMETRY-BASEL , 2024 , 16 (1) . |
| MLA | Zhang, Wei et al. "A General Framework for Material Properties Calculation and the Free Vibration Analysis of New Three-Phase Composite Cylindrical Shell Structures" . | SYMMETRY-BASEL 16 . 1 (2024) . |
| APA | Zhang, Wei , Duan, Jinqiu , Liu, Tao , Zheng, Yan , Qian, Yingjing . A General Framework for Material Properties Calculation and the Free Vibration Analysis of New Three-Phase Composite Cylindrical Shell Structures . | SYMMETRY-BASEL , 2024 , 16 (1) . |
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Abstract ：
针对通信卫星对多个地面目标的连续覆盖问题,合理的星座构型设计方案可在满足覆盖约束的条件下降低星座部署成本.在传统的星座设计方案中,较多的分散地面目标容易导致优化结果出现局部最优的情况.因此,为避免这种情况,提出了一种基于"上层+下层"两级优化的多目标覆盖卫星星座优化设计方案.首先,在上层采用聚类算法将目标地点合理分组,并使用多目标粒子群算法优化分配给各组目标地点的星下点轨迹,在星座设计之初尽可能地提高卫星对地面目标的覆盖率.随后,下层采用0-1规划算法生成最优星座构型编码,以卫星数量最少为优化指标设计全天通信覆盖的卫星星座构型.仿真结果表明,该优化方案在满足一重连续覆盖要求的前提下,能够提高星座内单颗卫星对目标地点的覆盖能力,减少卫星数量,降低星座部署成本.
Keyword ：
分类优化方案 分类优化方案 聚类算法 聚类算法 多目标覆盖 多目标覆盖 星座优化设计 星座优化设计
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| GB/T 7714 | 乔鹏昊 , 李涧青 , 钱霙婧 . 基于双层优化的多目标覆盖星座优化设计 [J]. | 宇航学报 , 2024 , 45 (9) : 1396-1407 . |
| MLA | 乔鹏昊 et al. "基于双层优化的多目标覆盖星座优化设计" . | 宇航学报 45 . 9 (2024) : 1396-1407 . |
| APA | 乔鹏昊 , 李涧青 , 钱霙婧 . 基于双层优化的多目标覆盖星座优化设计 . | 宇航学报 , 2024 , 45 (9) , 1396-1407 . |
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Abstract ：
针对现有自主任务规划和自主导航任务对星上时钟准确性的依赖程度,以及当前卫星广泛依靠地面和全球导航系统(Global Navigation Satellite System,GNSS)等外部系统校时的现状,提出利用星上姿态敏感器测量月球掩星现象,根据星载高精度星表反演掩星精确时刻,进而校正星上时钟,为自主导航和自主任务规划提供高精度时间基准.首先推导了掩星时间序列以及对观测时刻偏差的最小二乘算法,提出基于遗传算法的校时修正量计算方法,其次对掩星事件的可探测性进行仿真分析,最后利用仿真对基于遗传算法的星上自主校时仿真系统的有效性进行验证,仿真结果显示该时钟校准方法有效且可行,偏差优于0.005s,可作为微小卫星、深空探测等项目星上校时的备用手段.
Keyword ：
星上自主校时 星上自主校时 月球掩星 月球掩星 最小二乘法 最小二乘法 遗传算法 遗传算法 时间序列 时间序列
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| GB/T 7714 | 侯祥震 , 刘玥 , 付凯林 et al. 基于月球掩星观测的星上全自主校时方法 [J]. | 航天器工程 , 2024 , 33 (4) : 18-24 . |
| MLA | 侯祥震 et al. "基于月球掩星观测的星上全自主校时方法" . | 航天器工程 33 . 4 (2024) : 18-24 . |
| APA | 侯祥震 , 刘玥 , 付凯林 , 钱霙婧 . 基于月球掩星观测的星上全自主校时方法 . | 航天器工程 , 2024 , 33 (4) , 18-24 . |
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Abstract ：
深空探测是我国航天领域的重要发展方向。厘清多天体引力场平动点轨道动力学机理与轨道设计原理是实现高效深空探测任务的关键科学问题。申请人紧密结合国家重大工程需求,围绕多天体复杂引力场轨道设计的挑战和难题,分别从"剥离"时变引力场效应、降低轨道约束方程维度和构建多频摄动共振轨道三个方面开展研究工作。主要学术成绩包括:1)建立了瞬时平动点动力学模型,明确了时变引力场轨道演化规律,解决了时变系统周期轨道构建问题;2)明确了表征位形时空关联的约束关系,实现了动力学冗余约束降维,解决了平动点附近周期轨道保持策略构建与低能转移轨迹设计难题;3)提出了平动点共振轨道非线性动力学设计原理和方法,揭示了共振轨道跃迁机理,解决了稳定观测共振轨道的构建问题。
Keyword ：
引力场 引力场 平动点 平动点
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| GB/T 7714 | 钱霙婧 . 多天体引力场航天器轨道动力学 [C] //第十九届全国非线性振动暨第十六届全国非线性动力学和运动稳定性学术会议（NVND2023） . 2023 . |
| MLA | 钱霙婧 . "多天体引力场航天器轨道动力学" 第十九届全国非线性振动暨第十六届全国非线性动力学和运动稳定性学术会议（NVND2023） . (2023) . |
| APA | 钱霙婧 . 多天体引力场航天器轨道动力学 第十九届全国非线性振动暨第十六届全国非线性动力学和运动稳定性学术会议（NVND2023） . (2023) . |
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Abstract ：
本发明公开了一种在全太阳系星历模型中构建平动点轨道的数值方法，根据J2000下地月平动点附近探测器的运动方程推导出地心会合坐标系GRC下地月平动点附近的轨道动力学方程根据上述推导的运动方程，定义两种类型的Poincaré截面，利用其分析Halo/Lissayjous轨道动力学行为；通过Poincaré截面分析确定平动点瞬时会合坐标系LiSC下CRTBP模型中每段轨迹弧的初始条件确定平动点的瞬时状态；基于平动点的瞬时状态确定地心会合坐标系下每段轨迹弧的初始条件，连接拼接点采用序列二次规划法得到所有内部拼接点位置速度的解并进行数值模拟；本发明在地心会合坐标系中提出了完整太阳系引力模型，并清楚地显示了GRC相对于惯性坐标系的角速度，计算过程简便，具有良好的工程价值。
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| GB/T 7714 | 钱霙婧 , 杨保臻 . 一种在全太阳系星历模型中构建平动点轨道的数值方法 : CN202210660209.5[P]. | 2022-06-13 . |
| MLA | 钱霙婧 et al. "一种在全太阳系星历模型中构建平动点轨道的数值方法" : CN202210660209.5. | 2022-06-13 . |
| APA | 钱霙婧 , 杨保臻 . 一种在全太阳系星历模型中构建平动点轨道的数值方法 : CN202210660209.5. | 2022-06-13 . |
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Abstract ：
As space exploration activities are developing rapidly, spacecraft with large antennas have gained wide acceptance in providing reliable telecommunications and astrophysical observations. In this paper, the dynamic responses and control strategy for a spacecraft with a large hoop-truss antenna under solar flux shock are studied. According to the momentum and angular momentum principle, the rigid-flexible coupled rotational dynamic equation and the translational dynamic equation of the system are established, which include the attitude motion of the rigid main body and the vibration of the antenna. Then, a finite element model of the antenna is established to analytically obtain the corresponding vibration modal shape matrix and natural frequencies. Last, the coupled responses for the attitude motion and vibration are investigated. The corresponding control strategy is designed based on a double-loop structure sliding mode control method. The Lyapunov method is used to demonstrate the global asymptotic stability of the system. Simulations verify the effectiveness of the proposed rigid-flexible coupled model and control strategy.
Keyword ：
thermal induced vibration thermal induced vibration large hoop-truss antenna large hoop-truss antenna double-loop structure sliding mode control method double-loop structure sliding mode control method rigid-flexible coupled rigid-flexible coupled
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| GB/T 7714 | Liu, Yue , Li, Xin , Qian, Ying-Jing et al. Rigid-Flexible Coupled Dynamic and Control for Thermally Induced Vibration and Attitude Motion of a Spacecraft with Hoop-Truss Antenna [J]. | APPLIED SCIENCES-BASEL , 2022 , 12 (3) . |
| MLA | Liu, Yue et al. "Rigid-Flexible Coupled Dynamic and Control for Thermally Induced Vibration and Attitude Motion of a Spacecraft with Hoop-Truss Antenna" . | APPLIED SCIENCES-BASEL 12 . 3 (2022) . |
| APA | Liu, Yue , Li, Xin , Qian, Ying-Jing , Yang, Hong-Lei . Rigid-Flexible Coupled Dynamic and Control for Thermally Induced Vibration and Attitude Motion of a Spacecraft with Hoop-Truss Antenna . | APPLIED SCIENCES-BASEL , 2022 , 12 (3) . |
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Abstract ：
The solar radiation pressure acting on the sail surface provides a force, which depends on the deformation of the surface itself, and thus the coupling between the force and the deformation may lead to flutter. The panel flutter mechanism of two-dimensional solar sail subjected to solar radiation pressure is investigated in this study based on the traveling mode analysis. The partial differential equations governing the panel vibrations are truncated into a set of ordinary differential equations. Two types of flutter have been detected, namely, traditional coupled-mode flutter and novel coupled-direction flutter especially existing in two-dimensional cases. Varying mode shapes with solar radiation pressure and critical values have been studied by considering the eigenvalue problem. By studying the mode shapes in standing wave contour or traveling wave contour, the flutter phenomena have been described based on the mechanism of energy accumulation. (C) 2021 Elsevier Masson SAS. All rights reserved.
Keyword ：
Eigenvalue analysis Eigenvalue analysis Panel flutter Panel flutter Traveling wave mode Traveling wave mode Solar sail Solar sail
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| GB/T 7714 | Liu, Zi-Xiao , Qian, Ying-Jing , Yang, Xiao-Dong et al. Panel flutter mechanism of rectangular solar sails based on traveling mode analysis [J]. | AEROSPACE SCIENCE AND TECHNOLOGY , 2021 , 118 . |
| MLA | Liu, Zi-Xiao et al. "Panel flutter mechanism of rectangular solar sails based on traveling mode analysis" . | AEROSPACE SCIENCE AND TECHNOLOGY 118 (2021) . |
| APA | Liu, Zi-Xiao , Qian, Ying-Jing , Yang, Xiao-Dong , Zhang, Wei . Panel flutter mechanism of rectangular solar sails based on traveling mode analysis . | AEROSPACE SCIENCE AND TECHNOLOGY , 2021 , 118 . |
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Abstract ：
本文研究了探测器在受到双小行星系统不规则引力场作用的同时,也受到来自太阳的光压摄动(SRP)。根据牛顿万有引力定律,构建动力学方程,发现其呈现外激励特性。通过非线性振动理论,可存在一种新的周期共振轨道。给出存在共振轨道的参数判定条件,结合分析29种真实存在的双小行星系统,通过数值模拟,得到双小行星系统周期共振轨道,并对其动力学特性进行分析。
Keyword ：
非线性分析 非线性分析 共振轨道 共振轨道 双小行星系统 双小行星系统 太阳辐射压力 太阳辐射压力
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| GB/T 7714 | 宗凯 , 钱霙婧 . 双小行星系统光压摄动下共振轨道分析 [C] //北京力学会第二十七届学术年会论文集 . 2021 . |
| MLA | 宗凯 et al. "双小行星系统光压摄动下共振轨道分析" 北京力学会第二十七届学术年会论文集 . (2021) . |
| APA | 宗凯 , 钱霙婧 . 双小行星系统光压摄动下共振轨道分析 北京力学会第二十七届学术年会论文集 . (2021) . |
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Abstract ：
针对主星是细长型小行星，而次星是小而规则天体的双小行星系统，采用偶极子—粒子模型，建立了普适性的引力场模型，研究了系统平衡点附近的局部动力学及周期轨道问题。研究了同步状态下系统参数对平衡点位置、稳定性和变化趋势的影响，并给出了非共线平衡点的线性稳定域，计算了在非同步双小行星系统的等效平衡点的轨迹。结合路径搜索修正法和伪弧长延拓方法得到同步双小行星系统共线平衡点附近的1∶1共振轨道族。该研究能为双小行星系统探测中轨道设计问题提供理论基础。
Keyword ：
双小行星 双小行星 偶极子模型 偶极子模型 平衡点 平衡点 伪弧长延拓 伪弧长延拓 共振轨道族 共振轨道族
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| GB/T 7714 | 李旭 , 钱霙婧 , 杨晓东 et al. 基于偶极子模型的双小行星系统平衡点特性研究 [J]. | 工程力学 , 2021 , (12) : 232-248 . |
| MLA | 李旭 et al. "基于偶极子模型的双小行星系统平衡点特性研究" . | 工程力学 12 (2021) : 232-248 . |
| APA | 李旭 , 钱霙婧 , 杨晓东 , 张伟 . 基于偶极子模型的双小行星系统平衡点特性研究 . | 工程力学 , 2021 , (12) , 232-248 . |
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Abstract ：
太阳帆在光压力下产生变形,在长时间的飞行过程中产生很大的干扰力矩,因此对太阳帆薄膜变形的研究是必要的。本文推导了太阳光压力公式,光压大小主要跟与太阳的距离有关。本文还得到了太阳帆薄膜在光压力和预紧力作用下的挠度线性解析解,解除了太阳帆变形的最大挠度,并与Comsol有限元仿真得到的太阳帆几何非线性变形得到的结果进行对比。
Keyword ：
光压 光压 太阳帆 太阳帆 Comsol Comsol 几何非线性 几何非线性
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| GB/T 7714 | 左连恩 , 钱霙婧 . 光压模型下的太阳帆薄膜几何非线性变形及有限元分析 [C] //北京力学会第二十七届学术年会论文集 . 2021 . |
| MLA | 左连恩 et al. "光压模型下的太阳帆薄膜几何非线性变形及有限元分析" 北京力学会第二十七届学术年会论文集 . (2021) . |
| APA | 左连恩 , 钱霙婧 . 光压模型下的太阳帆薄膜几何非线性变形及有限元分析 北京力学会第二十七届学术年会论文集 . (2021) . |
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