舰载飞机机体主传力结构拦阻冲击动力学试验与仿真分析

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摘要舰载飞机拦阻着舰过程中，在多系统相互耦合条件下复杂的拦阻动载荷通过拦阻钩作用于机体结构，对机体结构安全性提出挑战。研究此过程中拦阻动载荷在结构上的传播规律及主传力结构的动响应特性具有极为重要的意义。通过地面拦阻冲击模拟试验，对舰载飞机拦阻减速过程中机体主传力结构动响应进行分析研究，并基于刚柔耦合动力学模型对试验过程进行数值模拟仿真分析。研究得到了拦阻过载和应力应变在结构上的响应特征，获取了过载和应变峰值沿机体传力路径的分布规律，可以作为舰载飞机结构强度设计的重要参考依据。研究表明拦阻冲击过载峰值沿主传力路径顺航向，呈现出明显的衰减趋势。靠近拦阻钩接头结构过载峰值较高，但由于冲击时间短，应变响应较小，不会对机体结构造成损伤和破坏。拦阻载荷在机翼隔离框位置会产生应力集中效应，结构设计时应注意对相应结构作局部加强。

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	张浩成1
	刘晓明1
	李翀伦2
	姚小虎3
	熊文强3
	张闰3

关键词 ：舰载飞机, 拦阻着舰, 冲击试验, 动响应分析, 刚柔耦合模型

Abstract：The fuselage structures were subjected to complex dynamic loads through the arresting hook, in the process of arresting of a Carrier-based Aircraft.In order to avoid impact damage to the structure, it was necessary to obtain the dynamic response characteristics of the main force transmission structures and find out the propagation and response law of the dynamic load on the structures.In this paper, the dynamic response in the main force transmission structures during the process of arresting the Carrier-based Aircraft was studied through the simulation of ground arresting impact tests.Meanwhile, a rigid-flexible coupling dynamic model was established to simulate the real test state.The structural response characteristics of impact acceleration and stress-strain were obtained, as well as the distribution of acceleration and stress-strain peak along the main force transmission structures, which can be used as a reference for structural strength design of the Carrier-based Aircraft.The results show that the peak of impact acceleration decreases along the main force transmission path, showing an obvious attenuation trend.It will not cause damage to the structures due to short impact time and small strain response, although the impact acceleration peak near the blocking joint is high.The stress concentration effect will be caused by the arresting load at the position of the wing isolation frame, and the corresponding structure should be strengthened locally in the structural design.

Key words： carrier-based aircraft arrest landing impact test dynamic response analysis rigid-flexible coupling model

收稿日期: 2019-06-25 出版日期: 2020-04-15

引用本文:

张浩成1，刘晓明1，李翀伦2，姚小虎3，熊文强3，张闰3. 舰载飞机机体主传力结构拦阻冲击动力学试验与仿真分析[J]. 振动与冲击, 2020, 39(8): 72-78.
ZHANG Haocheng1，LIU Xiaoming1，LI Chonglun2，YAO Xiaohu3，XIONG Wenqiang3，ZHANG Run3. Impact dynamic test and simulation analysis on main force transmission structures of carrier-based aircraft fuselage. JOURNAL OF VIBRATION AND SHOCK, 2020, 39(8): 72-78.

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http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2020/V39/I8/72

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