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首页> 外文会议>AIAA/ASCE/AHS/ASC structures, structural dynamics and materials conference;AIAA SciTech Forum >Multi-Body Dynamics Simulation of Spacecraft Mechanical Docking Operations
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Multi-Body Dynamics Simulation of Spacecraft Mechanical Docking Operations

机译：航天器机械对接操作的多体动力学仿真

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摘要

Over the past decade, the space industry has invested a significant effort in developing technologies involving spacecraft on-orbit operations. One area that has received wide attention is spacecraft rendezvous and docking operations. Various corporate and government organizations are developing technology that has drawn the interest of the commercial industry as the satellite operators are investigating options to extend their fleet operational life. A good example is the ongoing development of the logistic spacecraft for robotic missions that are being conceived by several spacecraft manufacturers and government organizations. All those space missions involve various levels of complex mechanical operations between two or more on-orbit bodies of various inertias. The work the authors are presenting in this paper focuses on the application of the flexible body multi-body dynamics (MBD) analysis and simulation technique for spacecraft on-orbit robotic and proximity operations. More specifically, the current work concentrates on the development of an algorithm to perform analytical predictions of the resultant spacecraft kinematics and the induced structural loads and responses from proximity and robotic operations. The robotic docking simulation of Orbital ATK's Mission Extension Vehicle (MEV) is used as an example problem, but the same or similar analysis concept is applicable to simulation of other types of rendezvous/robotic space missions. The strategies for MBD model correlation to the laboratory docking test data is also presented in this paper. Commercially available CAE software, NX Motion Simulation/Recurdyn, was used to conduct this study.
机译：在过去的十年中，航天工业在开发涉及航天器在轨操作的技术方面投入了大量精力。航天器的集合和对接操作是引起广泛关注的一个领域。各个公司和政府组织正在开发吸引商业行业兴趣的技术，因为卫星运营商正在研究延长其机队使用寿命的选择。一个很好的例子是由若干航天器制造商和政府组织构想的用于机器人任务的后勤航天器的持续开发。所有这些太空任务都涉及两个或多个不同惯性的在轨物体之间的各种复杂的机械操作。作者在本文中所做的工作主要集中在挠性多体动力学（MBD）分析和模拟技术在航天器在轨机器人和近程操作中的应用。更具体地说，当前的工作集中在算法的开发上，该算法对最终的航天器运动学以及所引起的结构载荷以及来自接近和机器人操作的响应进行分析预测。示例性问题使用了轨道ATK的任务扩展飞行器（MEV）的机器人对接仿真，但是相同或相似的分析概念也适用于其他类型的交会/机器人空间任务的仿真。本文还提出了MBD模型与实验室对接测试数据相关的策略。使用市售的CAE软件NX Motion Simulation / Recurdyn进行了这项研究。

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