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Stepwise Deployable Mechanism Design and Dynamics Analysis of UAV Folding Wing
Ye XU, GuoSheng XU, Yukun WANG, Gang WANG, Jingwang LIU, BoJun FAN, Miao WU
Modern Defense Technology    2024, 52 (1): 24-33.   DOI: 10.3969/j.issn.1009-086x.2024.01.004
Abstract93)   HTML6)    PDF (2561KB)(66)       Save

Folding wing deployment scheme of small patrol UAV has an important influence on UAV flight mode switching. According to folding characteristics and deployment requirements of UAV folding wing, two deployment schemes synchronous deployment and stepwise deployment are proposed. With deployment dynamics model of a folding wing being established based on Lagrangian method, and folding wing drag force during deployment being calculated with aerodynamic simulation tool, driving torques needed for different deployment schemes are obtained. Driving torque is used as the evaluation criterion to optimise deployment scheme of the folding wing. Simulation results show that the stepwise deployment scheme has a short deployment time and a small deployment torque to reach the required deployment position. Finally, a deployment mechanism is designed for the stepwise deployment scheme, and static strength analysis of the structure is provided to verify the feasibility of the structure.

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Research on IAMD Battle Command System(IBCS)of the US
Sen LI, Hai-lin TIAN, Gang WANG, Da-xi LI, Jing WU
Modern Defense Technology    2022, 50 (4): 84-100.   DOI: 10.3969/j.issn.1009-086x.2022.04.010
Abstract6300)   HTML271)    PDF (6583KB)(767)       Save

Integrated air and missile defense battle command system(IBCS)is not only the core system to support the force transformation and operation-concept development of U.S. Air Defense Artillery(ADA), but also an important platform for deep integration of multi-domain and multi-type air & missile defense combat elements. The base-line version of IBCS began to deliver ADA in 2022. Based on the previous general research, the system component, equipment function, association relationship and troop configuration of IBCS are analyzed. It is pointed out that the new disposition capability of engagement operations center(EOC)is "one-type equipment, multi-level command hierarchy adaptation; one set of software, multi-role and function configuration". Based on the type configuration analysis of EOC, the operational mode and characteristics of IBCS are discussed. The inspiration and suggestion are put forward based on the above research.

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