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Distributed and Real-time Integrated Simulation System on Avionics
Zhou, Yaoming,Liu, Yaolong,Li, Shaowei,Jia, Yuhong The Korean Society for Aeronautical and Space Scie 2017 International Journal of Aeronautical and Space Sc Vol.18 No.3
In order to achieve iterative design in early R&D period, a Distributed and Real-time Integrated Simulation System for avionics based on a Model-Based Systems Engineering (MBSE) method is proposed. The proposed simulation system includes driver, simulation model, monitor, flight visual model and aircraft external model.The effect of this simulation system in iterative design and system verification is testified by several use cases. The result shows that the simulation system, which can play an important role in iterative design and system verification, can reduce project costs and shorten the entire R&D period.
Research on Starting Clutch Control Strategy of Unmanned Helicopter
Zhou Yaoming,Zhang Lei,Xu Hongzhe,Wu Zhe 제어로봇시스템학회 2011 제어로봇시스템학회 국제학술대회 논문집 Vol.2011 No.10
A method is explored to realize automatic control of starting clutch. The clutch control requirements are determined based on the dynamics characteristics research of an unmanned helicopter clutch, and the analysis of clutch engagement process effect on transmission impact and belts life. The rotating speed of clutch driving pulley and driven pulley are selected as basic input parameters. The starting clutch engagement control is divided into three stages. The three stages are fast engagement before rotor rotates, slow engagement and fast engagement after synchronization in turn. Subsection algorithm is adopted in fast engagement before rotor rotates. PID algorithm is adopted in slow engagement. The automatic control of starting clutch engagement at various operating conditions is realized in this way. The experimental results indicate that this control strategy can fit the changes of clutch parameters. It is proved that this clutch control strategy has met the autonomous control requirements of unmanned helicopter.
Distributed and Real-time Integrated Simulation System on Avionics
Yaoming Zhou,Yaolong Liu,Shaowei Li,Yuhong Jia 한국항공우주학회 2017 International Journal of Aeronautical and Space Sc Vol.18 No.3
In order to achieve iterative design in early R&D period, a Distributed and Real-time Integrated Simulation System for avionics based on a Model-Based Systems Engineering (MBSE) method is proposed. The proposed simulation system includes driver, simulation model, monitor, flight visual model and aircraft external model. The effect of this simulation system in iterative design and system verification is testified by several use cases. The result shows that the simulation system, which can play an important role in iterative design and system verification, can reduce project costs and shorten the entire R&D period.
Yuan Gao,Hu Liu,Yaoming Zhou 한국항공우주학회 2019 International Journal of Aeronautical and Space Sc Vol.20 No.1
In the military field, equipment development has increasingly focused on the system-of-systems (SoS) oriented combat. To answer the question “how to judge the success of a mission in SoS combat”, this paper proposes a concept of “Mission Success Space (MSS)”. After designing MSS and computing Mission Success Rate (MSR), an evaluation method of effectiveness is defined to quantify the contribution of a combat aircraft to a combat SoS by comparing MSRs of the SoS with and without this aircraft. During MSS design procedure, Mission Success Function (MSF) plays an important role since it gives key parts where the success criterion is changed. In the simulation case, a quadratic function and an S-curve function are used as MSFs to verify themethod proposed. In addition, based on the Gaussian fitting results, a new function using inverse design is studied by finding bilateral quantiles of the fitting curves. Finally, the MSS of inverse design is chosen as the best for this case after analyzing the contribution results of these three functions.