民机飞机液压刹车系统动态特性参数灵敏度分析方法OA
Sensitivity analysis method for dynamic characteristics parameters of hydraulic braking system in civil aircraft
为进一步提升民用飞机在复杂跑道环境下的液压刹车性能与可靠性,对飞机液压刹车系统动态特性分析开展了系统性的理论与实验研究.针对民用飞机液压刹车系统,建立了包含刹车控制阀、液压管路等关键部件的详细非线性数学模型,在此基础上,针对液压刹车系统多参数问题,引入参数灵敏度分析方法,从众多系统参数中精准定位得到作动器活塞有效面积、作动器复位弹簧刚度及阀的流量-压力系数为影响液压刹车系统较为显著的参数,实现了对影响系统动态响应特性的关键参数的定量化识别.搭建飞机液压刹车系统半实物实验平台,开展刹车系统动态响应的实验验证,明确了影响液压刹车系统动态响应的关键因素,证明了理论分析成果的正确性,为民用飞机液压刹车系统设计与优化明确了方向.
A thorough theoretical and experimental investigation of the dynamic properties of the aircraft hydraulic braking system was carried out in order to improve the braking performance and dependability of civil aircraft under challenging runway circumstances.A detailed nonlinear mathematical model of the hydraulic braking system was established,incorporating key components such as the brake control valve and hydraulic pipelines.Based on this model,a parameter sensitivity analysis method was introduced to address the system's multi-parameter problem.The analysis quantitatively determined that the most important factors affecting the dynamic response characteristics of the system were the actuator piston's effective area,the actuator return spring's stiffness,and the flow-pressure coefficient of the valve.Finally,a hardware-in-the-loop experimental platform for the aircraft braking system was constructed to carry out experimental validation of the dynamic response.The results clarified the key factors affecting the braking system's dynamic response,confirmed the correctness of the theoretical analysis,and provided a clear direction for the design and optimization of hydraulic braking systems for civil aircraft.
孟庆堂;马新起;杨鹏;白璐;王壮壮;刘晓超;焦宗夏
北京航空航天大学 自动化科学与电气工程学院,北京 100191||中国商用飞机有限责任公司上海飞机设计研究院,上海 201210北京航空航天大学 自动化科学与电气工程学院,北京 100191中国商用飞机有限责任公司上海飞机设计研究院,上海 201210中国商用飞机有限责任公司上海飞机设计研究院,上海 201210北京航空航天大学 自动化科学与电气工程学院,北京 100191北京航空航天大学 自动化科学与电气工程学院,北京 100191北京航空航天大学 自动化科学与电气工程学院,北京 100191
航空航天
飞机刹车系统液压动态特性数学模型参数灵敏度分析半实物实验
aircraft braking systemhydraulic dynamic characteristicsmathematical modelparameter sensitivity analysishardware-in-the-loop experiment
《北京航空航天大学学报》 2026 (8)
2708-2719,12
国家自然科学基金(52505050)中国博士后科学基金(2025T181117,2024M764076)流体动力基础件与机电系统全国重点实验室开放基金(GZKF-202428) National Natural Science Foundation of China(52505050)China Postdoctoral Science Foundation(2025T181117,2024M764076)Open Foundation of the State Key Laboratory of Fluid Power and Mechatronic Systems(GZKF-202428)
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