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冯景春,梁健臻,张偲,蔡宴朋,杨志峰
《中国工程科学》 2020年 第22卷 第6期 页码 56-66 doi: 10.15302/J-SSCAE-2020.06.008
冯景春,梁健臻,张偲,杨志峰,祝振昌
《中国工程科学》 2020年 第22卷 第6期 页码 67-75 doi: 10.15302/J-SSCAE-2020.06.009
深海孕育了地球上规模最大、远未被详细认知的生态系统，蕴藏着极为丰富且兼具特殊功能的生物资源。深海装备是保障深海生物资源绿色、安全、有序开发的关键支撑。为了厘清深海生物资源开发装备的基本特征、发展特色和技术瓶颈，明确深海生物资源开发装备的未来发展方向和着力点，本文分析了深海生物资源开发对装备的技术需求特征，梳理了深海生物资源开发装备的发展现状；盘点了我国深海生物资源开发装备的基本情况，研判了领域内装备发展面临的困难和挑战。针对我国深海生物资源开发装备缺乏统一标准、试验平台和成果转化率不足等问题，提出创新体系、通用技术、转化平台、国际合作等方面的发展建议，以期从装备发展的视角为我国可持续开发深海生物资源提供方向参照。
基于增益调度控制和高保真飞机模型的实时四维轨迹生成 Article
Olusayo Obajemu, Mahdi Mahfouf, Lohithaksha M. Maiyar, Abrar Al-Hindi, Michal Weiszer, Jun Chen
《工程（英文）》 2021年 第7卷 第4期 页码 495-506 doi: 10.1016/j.eng.2021.01.009
Aircraft ground movement plays a key role in improving airport efficiency, as it acts as a link to all other ground operations. Finding novel approaches to coordinate the movements of a fleet of aircraft at an airport in order to improve system resilience to disruptions with increasing autonomy is at the center of many key studies for airport airside operations. Moreover, autonomous taxiing is envisioned as a key component in future digitalized airports. However, state-of-the-art routing and scheduling algorithms for airport ground movements do not consider high-fidelity aircraft models at both the proactive and reactive planning phases. The majority of such algorithms do not actively seek to optimize fuel efficiency and reduce harmful greenhouse gas emissions. This paper proposes a new approach for generating efficient four-dimensional trajectories (4DTs) on the basis of a high-fidelity aircraft model and gainscheduling control strategy. Working in conjunction with a routing and scheduling algorithm that determines the taxi route, waypoints, and time deadlines, the proposed approach generates fuel-efficient 4DTs in real time, while respecting operational constraints. The proposed approach can be used in two contexts: ① as a reactive decision support tool to generate new trajectories that can resolve unprecedented events; and ② as an autopilot system for both partial and fully autonomous taxiing. The proposed methodology is realistic and simple to implement. Moreover, simulation studies show that the proposed approach is capable of providing an up to 11% reduction in the fuel consumed during the taxiing of a large Boeing 747 jumbo jet.
关键词： Aircraft model Intelligent taxiing Optimization Four-dimensional trajectory
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