基于联合仿真的飞机着陆机场跑道桥动载特性研究

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振动与冲击 ›› 2024, Vol. 43 ›› Issue (2) : 105-113.

论文

孟宪锋1,2，赵星燕3，江辉3，吴松华1,2，曹铁志1,2，罗萌3，孙永学1,2

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Dynamic load characteristics of an airport runway bridge during aircraft landing based on co-simulation

MENG Xianfeng1,2，HAO Xingyan3，IANG Hui3，WU Songhua1,2，CAO Tiezhi1,2，LUO Meng3，SUN Yongxue1,2

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文章历史 +

摘要

为研究飞机着陆滑跑过程中冲击作用对机场桥梁动力响应的影响，以某拟供C类飞机使用的跑道桥为研究对象，以Boeing 737-800机型为例，首次基于有限元软件与多体动力学软件相结合的联合仿真技术建立了机-桥耦合模型，精细化模拟了飞机以不同的着陆姿态在桥梁上着陆滑跑的全过程。在验证机-桥耦合模型准确性的基础上，系统讨论了飞机着陆质量、下沉速度、俯仰角及滚转角等参数对桥梁动力响应的影响程度、影响规律，并明确了桥梁动力系数的分布范围。研究结果表明：飞机着陆冲击作用下，桥梁动力系数的主要分布区间为1.26~1.62；桥梁动力系数随着陆质量、下沉速度、滚转角增大而增大，随接地速度、俯仰角增大而减小；飞机下沉速度的影响最为显著，下沉速度从1.00 m/s增大到3.05 m/s时，动力系数从0.98增大到1.87，增幅高达90%。跑道桥的设计需合理考虑飞机着陆滑跑过程的动载作用。

Abstract

In order to study the influence of impact on the dynamic response of the airport bridge during aircraft landing and taxiing. Taking a runway bridge for the aircraft of class C as the research object and the Boeing 737-800 aircraft as an example, the technology of co-simulation based on finite element software and multi-body dynamics software is applied to the establishment of the aircraft-bridge coupling model for the first time. The whole process of aircraft landing and taxiing on the bridge with different landing attitudes is simulated finely. Based on verifying the accuracy of the aircraft-bridge coupling model, the influence degree and rule of landing mass, sinking speed, pitch angle and roll angle on the bridge dynamic response are systematically discussed and the distribution range of the bridge dynamic factor is defined. The results show that the dynamic factor of bridge is mainly between 1.26 and 1.62 under the impact of aircraft landing. The dynamic factor of bridge increases with the increase of landing mass, sinking speed and roll angle while decreases with the increase of grounding speed and pitch angle. The sinking speed has the most obvious influence. When the sinking speed increases from 1.00 m/s to 3.05 m/s, the dynamic factor increases from 0.98 to 1.87, an increase of 90%. The effect of dynamic load during aircraft landing and taxiing needs to be considered to the design of the runway bridge.

导出引用

孟宪锋1,2，赵星燕3，江辉3，吴松华1,2，曹铁志1,2，罗萌3，孙永学1,2. 基于联合仿真的飞机着陆机场跑道桥动载特性研究[J]. 振动与冲击, 2024, 43(2): 105-113

MENG Xianfeng1,2，HAO Xingyan3，IANG Hui3，WU Songhua1,2，CAO Tiezhi1,2，LUO Meng3，SUN Yongxue1,2. Dynamic load characteristics of an airport runway bridge during aircraft landing based on co-simulation[J]. Journal of Vibration and Shock, 2024, 43(2): 105-113

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