首页|Aerodynamic/control integrated optimization method for unpowered high-speed vehicle configuration design
Aerodynamic/control integrated optimization method for unpowered high-speed vehicle configuration design
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The unpowered high-speed vehicle experiences a significant coupling between the disci-plines of aerodynamics and control due to its characteristics of high flight speed and extensive maneuverability within large airspace.The conventional aircraft conceptual design process follows a sequential design approach,and there is an artificial separation between the disciplines of aerody-namics and control,neglecting the coupling effects arising from their interaction.As a result,this design process often requires extensive iterations over long periods when applied to high-speed vehi-cles,and may not be able to effectively achieve the desired design objectives.To enhance the overall performance and design efficiency of high-speed vehicles,this study integrates the concept of Active Control Technology(ACT)from modern aircraft into the philosophy of aerodynamic/control inte-grated optimization.Two integrated optimization strategies,with differences in coupling granular-ity,have been developed.Subsequently,these strategies are put into action on a biconical vehicle that operates at Mach 5.The results reveal that the comprehensive performance of the synthesis optimal model derived from the aerodynamic/control integrated optimization strategy is improved by 31.76％and 28.29％respectively compared to the base model under high-speed conditions,demonstrating the feasibility and effectiveness of the method and optimization strategies employed.Moreover,in comparison to the single-stage strategy,the multi-stage strategy takes into deeper con-sideration the impact of control capacity.As a result,the control performance of the synthesis opti-mal model derived from the multi-stage strategy improves by 13.99％,whereas the single-stage strategy only achieves a 5.79％improvement.This method enables a fruitful interaction between aerodynamic configuration design and control system design,leading to enhanced overall perfor-mance and design efficiency.Furthermore,it improves the controllability of high-speed vehicles,mitigating the risk of mission failure resulting from an ineffective control system.
State Key Laboratory for Strength and Vibration of Mechanical Structures,School of Aerospace Engineering,Xi'an Jiaotong University,Xi'an 710049,China
Shannxi Key Laboratory for Environment and Control of Flight Vehicle,School of Aerospace Engineering,Xi'an Jiaotong University,Xi'an 710049,China
Beijing Institute of Space Long March Vehicle,Beijing 100076,China
AVIC Xi'an Aeronautics Computing Technique Research Institute,Xi'an 710068,China
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National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNatural Science Foundation of Shaanxi ProvinceChinese Aeronautical Foundation
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