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考虑载荷突卸的舰载机弹射起飞动力学分析

DOI: 10.3969/j.issn.1006-7043. 201111078

Keywords: 弹射起飞, 舰载机, 前起落架, 载荷突卸, 突伸

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Abstract:

为了分析舰载机弹射起飞过程中的动力学特点,建立了一种考虑前起落架载荷突卸的弹射起飞动力学模型.研究了在弹射开始时由于牵制载荷突卸而引起的前起落架沿着垂直方向的快速振动现象,并分析了该现象的动力学成因;研究了在弹射末端由于弹射杆载荷突卸而引起的前起落架的快速突伸规律,分析了各种参数对前起落架突伸的影响.结果分析表明:为了减小前起落架支柱受力的波动峰值,应适当增加弹射杆长度和牵制杆长度,及牵制杆最大破坏力值;但为了降低弹射起飞难度,应适当减小弹射杆长度.

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