In order to obtain the mechanical parameters of the bird during the process of bird striking, numerical simulations and experiments of bird striking on plate are studied in the paper. The bird mass is 1.8 kg and 3.6 kg respectively, and the plate is made by LY12 aluminium alloy with the thickness of 10 mm and 14 mm and 45# steel with the thickness of 4.5 mm and 8.0 mm. Sixteen groups of experiments are performed in the present paper with the bird velocity at 70,120,170 m/s, respectively. The histories of displacement-time and strain-time of plate as well as the force-time are measured by the dynamic data acquisition system, and the whole process of dynamic response during bird striking on plate is recorded by high-speed camera system. The results of the experiments indicate that the repeatability of the impacting velocities and the measured results for twice experiments in one group are very good. The reaction time of bird striking is millisecond, so its behavior belongs to impact dynamics; there exists strong coupling between the bird and the plate. The deformation of the plate is very big and the ratio of the plate displacement at the center point to the plate thickness is 7.9. The fluid behavior of the bird is obvious with the increment of the impacting velocity.
LIU Jun, LI Yulong, GUO Weiguo, SHI Xiaopeng, PENG Gang, YE Biao
. Parameters Inversion on Bird Constitutive Model PartⅠ: Study on Experiment of Bird Striking on Plate[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2011
, 32(5)
: 802
-811
.
DOI: CNKI:11-1929/V.20110328.1446.007
[1] Hild J. Worldwide bird strike statistics of Lufthansa German airlines. AD-P004183, 1984.
[2] 梁惠钧. 民用飞机鸟撞的统计资料[J]. 飞机工程, 1993(3): 81-83. Liang Huijun. The statistic data of bird impacting with civil aircraft[J]. Aircraft Engineering, 1993(3): 81-83. (in Chinese)
[3] 郑永强, 陈烨. 中南地区鸟害防治工作的几点体会[J]. 民航经济与技术, 2000(12): 56-57. Zheng Yongqiang, Chen Ye. Some ideas about the catastrophic bird striking in center-southern[J]. The Econo-mic and Technique of Civil Aviation, 2000(12): 56-57. (in Chinese)
[4] 周加良. 飞机鸟撞事故分析、预防及建议[J]. 宁波大学学报: 理工版, 1994, 7(1): 16-23. Zhou Jialiang. The analysis, prevention and suggestion of the bird impacting accident[J]. Journal of Ningbo University: Natural Science and Engineering Edition, 1994, 7(1): 16-23. (in Chinese)
[5] 粟牧怀, 李海. 减少鸟害事件确保民用航空安全[J]. 民航经济与技术, 2000(6): 52-54. Su Muhuai, Li Hai. Reduce the bird impacting accident to ensure the security of civil aviation[J]. The Economic and Technique of Civil Aviation, 2000(6): 52-54. (in Chinese)
[6] 周加良. 我国鸟撞事故统计[J]. 国际航空, 1991(9): 56-57. Zhou Jialiang. The statistic of bird impacting accident in our country[J]. The International Aviation, 1991(9): 56-57. (in Chinese)
[7] 张志林, 姚卫星. 飞机风挡鸟撞动响应分析方法研究[J]. 航空学报, 2004, 25(6): 577-580. Zhang Zhilin, Yao Weixing. Research on dynamic anal-ysis of bird impact on aircraft windshield[J]. Acta Aeronautica et Astronautica Sinica, 2004, 25(6): 577-580. (in Chinese)
[8] 瞿承玮, 郑百林. GLARE 层板鸟撞数值模拟分析[J]. 力学季刊, 2007, 28(1): 65-69. Qu Chengwei, Zheng Bailin. Numerical simulation of bird impact on GLARE laminates[J]. Chinese Quarterly of Mechanics, 2007, 28(1): 65-69. (in Chinese)
[9] McCarthy M A, Xiao J R, Petrinic N, et al. Modeling of bird strike on an aircraft wing leading edge made from fibre metal laminates—Part 1: material modelling[J]. Applied Composite Materials, 2004, 11(5): 295-315.
[10] McCarthy M A, Xiao J R, Petrinic N, et al. Modeling of bird strike on an aircraft wing leading edge made from fibre metal laminates—Part 2: modeling of impact with SPH bird model[J]. Applied Composite Materials, 2004, 11(5): 317-340.
[11] Wilbeck J S, Barber J P. Bird impacting loading[J]. The Shock & Vibration Bulletin, 1978(2): 115-122.
[12] Barber J P, Boehman L I, Wilbeck J S. The modeling of bird impact loads. AD-A065049, 1978.
[13] 尹晶, 范尔宁. 鸟撞击载荷的冲量与时间因素的确定[J]. 南京航空航天大学学报, 1994, 26(1): 68-74. Yin Jing, Fan Erning. The determination of impulse and temporal factor of bird impact loads[J]. Transactions of Nanjing University of Aeronautics & Astronautics, 1994, 26(1): 68-74. (in Chinese)
[14] 张鹏. 复合材料结构抗撞击损伤设计分析技术[J]. 应用力学学报, 2001, 18(9): 151-155. Zhang Peng. Design and analysis technique of resisting impact damage for composite structures[J]. Chinese Journal of Applied Mechanics, 2001, 18(9): 151-155. (in Chinese)
[15] 谢兰生, 孙良新, 范绪箕. 非线性粘弹性结构鸟撞击动响应分析[J]. 南京航天航空大学学报, 1995, 27(6): 738-743. Xie Lansheng, Sun Liangxin, Fan Xuqi. Dynamic reponse analysis for nonlinear viscoelastic structures to the bird strike[J]. Transactions of Nanjing University of Aeronautics & Astronautics, 1995, 27(6): 738-743. (in Chinese)
[16] 白金泽. 基于神经网络方法的鸟撞飞机风挡反问题研究. 西安:西北工业大学航空学院, 2003. Bai Jinze. Inverse issue study of bird-impact to aircraft windshield based on neural network method. Xi’an: School of Aeronautics, Northwestern Polytechnical University, 2003. (in Chinese)
[17] 张永康, 李玉龙,汪海青. 典型梁-缘结构鸟撞破坏的有限元分析[J]. 爆炸与冲击, 2008, 28(3): 236-242. Zhang Yongkang, Li Yulong, Wang Haiqing. Finite element analysis of bird impact damage to representative beam-edge structure[J]. Explosion and Shock Waves, 2008, 28(3): 236-242. (in Chinese)
[18] 姚小虎. 鸟撞飞机圆弧风挡的实验研究及数值模拟. 太原:太原理工大学, 2001. Yao Xiaohu. Experimental investigation and numerical si-mulation on arc windshield of aircrafts subjected to bird impact. Taiyuan: Taiyuan University of Science and Technology, 2001. (in Chinese)
CJA