云南高校图书馆联盟文献共享服务平台- TRAJECTORY

TRAJECTORY: 作品数：739被引量：1490H指数：13; 导出分析报告; 相关领域：自动化与计算机技术更多>>; 相关作者：左绿水姚海琳朱灏胡平杰王昶更多>>; 相关机构：东南大学温州医科大学中国科学技术大学中南大学更多>>; 相关期刊：更多>>; 相关基金：国家自然科学基金国家重点基础研究发展计划中国博士后科学基金国家教育部博士点基金更多>>

Modelling and experimental investigation of micro-dimpled structures milling with spiral trajectory tool reciprocating motion: 《Chinese Journal of Aeronautics》2025年第2期577-596,共20页Guangzhou WANG Linjie ZHAO Qi LIU Xiguang LI Yazhou SUN Mingjun CHEN; co-supported the National Natural Science Foundation of China(No.52235010);the Heilongjiang Postdoctoral Fund(No.LBH-Z22136);the New Era Longjiang Excellent Master and Doctoral Dissertation Fund(No.LJYXL2022-057).; To mill fine and well-defined micro-dimpled structures,a machining manner of spiral trajectory tool reciprocating motion,where the tool repeats the process of‘feed milling–retract–cutting feed–feed milling again’...; 关键词：Tool reciprocating motion Spiral trajectory Micro-dimpled structure MICROMACHINING Simulation modelling with diamond tool Surface texture

Trajectory analysis and flight modeling of combat aircrafts ejection seats: 《Chinese Journal of Aeronautics》2025年第2期175-184,共10页Ercan BASTUG Nadir SERIN Faruk ELALDI; In this study,it is aimed to develop a generic model which calculates the trajectory of the ejection seat from the jet aircraft,by taking into account the parameters that will affect the seat movement such as the seat...; 关键词：Ejection seat Ejection seat trajectory Point mass trajectory model Parachute opening times Aerodynamic coefficients

DDQNC-P:A framework for civil aircraft tactical synergetic trajectory planning under adverse weather conditions: 《Chinese Journal of Aeronautics》2024年第12期434-457,共24页Honghai ZHANG Jinlun ZHOU Zongbei SHI Yike LI Jinpeng ZHANG; the support of the Chinese Special Research Project for Civil Aircraft(No.MJZ1-7N22);the National Natural Science Foundation of China(No.U2133207).; Adverse weather during aircraft operation generates more complex scenarios for tactical trajectory planning,which requires superior real-time performance and conflict-free reliability of solving methods.Multi-aircraft...; 关键词：Air traffic control Trajectory-based operation 4D trajectory planning Reinforcement learning Decision support systems

Approximate analytical solutions for threedimensional ascent trajectory of a solid-fuel launch vehicle with time-varying mass flow rate: 《Chinese Journal of Aeronautics》2024年第10期275-293,共19页Qi YU Wanchun CHEN Wenbin YU; Supported in part by National Natural Science Foundation of China(No.62003012);in part by the Young Tulents Support Program funded by Bcihang Univer-sity,China(No.YWF-23-L-702).; In the scenario that a solid-fuel launch vehicle maneuvers in outer space at high angles of attack and sideslip for energy management,Approximate Analytical Solutions(AAS)for the threedimensional(3D)ascent flight stat...; 关键词：Approximate analytical solutions 3D ascent trajectory Solid-fuel launch vehicle Uneven thrust Energy management

Fast fixed-time three-dimensional terminal guidance with non-concave trajectory constraint: 《Chinese Journal of Aeronautics》2024年第3期208-218,共11页Youmin GONG Yanning GUO Yueyong LYU Dongyu LI Guangfu MA; co-supported by the National Defense Basic Scientific Research Project,China(No.JCKY2020903B002);the National Natural Science Foundation of China(Nos.61973100,62273118 and 12150008)。; Focusing on the non-concave trajectory constraint,a sliding-mode-based nonsingular feedback fast fixed-time three-dimensional terminal guidance of rotor unmanned aerial vehicle landing,planetary landing and spacecraft...; 关键词：THREE-DIMENSIONAL Terminal guidance Non-concave trajectory constraint Fast fixed-time control Sliding mode control

A semi-analytical multi-harmonic balance method on full-3D contact model for dynamic analysis of dry friction systems: 《Chinese Journal of Aeronautics》2024年第2期309-329,共21页He SUN Dayi ZHANG Yaguang WU Qingyang SHEN Dianyin HU; financially supported by the National Natural Science Foundation of China(Nos.52175071,91860205);the Major Projects of Aero-engines and Gas turbines(No.J2019-IV-023-0091)。; Dry friction damping structures are widely-used in aero-engines to mitigate vibration.The nonlinear nature of friction and the two-dimensional in-plane motion on the contact interface bring challenges to accurately an...; 关键词：Dry friction damping Multi-harmonic balance method Trajectory tracking method Jacobian matrix Shrouded blade

Behavior pattern mining based on spatiotemporal trajectory multidimensional information fusion: 《Chinese Journal of Aeronautics》2023年第4期387-399,共13页Qiaowen JIANG Yu LIU Ziran DING Shun SUN; co-supported by the National Key R&D Program of China(No.2021YFA0715202);the National Natural Science Foundation of China(Nos.62022092,61790550,62171453);the Outstanding Youth Innovation Team Program of University in Shandong Province,China(No.2021KJ005).; Trajectory data mining is widely used in military and civil applications,such as early warning and surveillance system,intelligent traffic system and so on.Through trajectory similarity measurement and clustering,targ...; 关键词：Behavior pattern Hausdorff distance Information fusion Spatiotemporal trajectory Trajectory clustering

A policy iteration method for improving robot assembly trajectory efficiency被引量：1: 《Chinese Journal of Aeronautics》2023年第3期436-448,共13页Qi ZHANG Zongwu XIE Baoshi CAO Yang LIU; supported by the National Natural Science Foundation of China(No.91848202);the Special Foundation(Pre-Station)of China Postdoctoral Science(No.2021TQ0089)。; Bolt assembly by robots is a vital and difficult task for replacing astronauts in extravehicular activities(EVA),but the trajectory efficiency still needs to be improved during the wrench insertion into hex hole of bo...; 关键词：Bolt assembly Policy initialization Policy iteration Reinforcement learning(RL) Robotic assembly Trajectory efficiency

Effect of variable-angle trajectory structure on mechanical performance of CF/PEEK laminates made by robotic fiber placement被引量：1: 《Chinese Journal of Aeronautics》2022年第12期336-356,共21页Shouzheng SUN Haiyang MEI Yang WANG Jiahai ZHANG Zhenyu HAN Jinglan GUO; co-supported by the National Natural Science Foundation of China(No.51875134);the Self-Planned Task of State Key Laboratory of Robotics and System(HIT),China(No.SKLRS202218B);the Production and Research Project of HIT Wuhu Robot Technology Research Institute,China(No.HIT-CXY-CMP1-MWLRP-21-01).; In comparison to the traditional fixed-angle trajectory,the variable-angle trajectory has a greater design space.However,it is a challenge to determine which common design curve structure is the most effective for imp...; 关键词：Fiber reinforced plastics Mechanical properties Robotic fiber placement Thermoplastics Trajectory design Variable-angle laminate

Energy-efficiency maximization for fixed-wing UAV-enabled relay network with circular trajectory被引量：1: 《Chinese Journal of Aeronautics》2022年第9期71-80,共10页Chenxiao XIE Xin-Lin HUANG; supported in part by Shanghai Rising-Star Program(No.19QA1409100);in part by the National Natural Science Foundation of China(Nos.62071332,61631017 and U1733114);in part by the Fundamental Research Funds for the Central Universities,China;。; With the development of Unmanned Aerial Vehicles(UAVs), the applications of UAVs have been extensively explored. In the field of wireless communications, the relay nodes are often used to extend network coverage. Howe...; 关键词：Circular trajectory Energy efficiency Fixed wing UAV Power allocation UAV relay

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