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机场跑道破损坑槽对飞机滑跑动力的影响

DOI: 10.3969/j.issn.1674-0696.2013.04.39, PP. 717-720

Keywords: 机场工程,深度许可值,动力分析,坑槽,振动加速度,动荷系数,airfieldengineering,requireddepthvalue,dynamicanalysis,pothole,vibrationacceleration,dynamicloadcoefficient

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Abstract:

:?基于1/4双自由度振动模型,建立了飞机-坑槽振动简化模型,从乘客舒适度、道面结构承载力及高速滑跑时可能发生跳跃等3方面,研究了道面坑槽的许可深度计算方法。结果表明:机身振动加速度随着坑槽深度增大而增大,随着滑跑速度增大而减小;动载系数随着坑槽深度增大而增大,随着滑跑速度的增大而减小。实例应用得到了跑道不同部位出现坑槽的许可深度值,为机场当局对破损跑道的运行适用性判断提供理论参考。

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