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飞机风挡结构抗鸟撞一体化设计技术研究
引用本文:白金泽,孙秦.飞机风挡结构抗鸟撞一体化设计技术研究[J].力学与实践,2005,27(1):14-18.
作者姓名:白金泽  孙秦
作者单位:西北工业大学飞机系,西安,710072
摘    要:结合大型非线性有限元分析软件,实践了飞机风挡结构由初步设计、数值仿真以及实验验证的一体化设计过程,建立了适于风挡结构材料的非线性黏弹性本构计算接口程序,对合理选取单元类型、材料模型、边界条件影响以及试验设计等工作细节进行了深入研究,通过实验与仿真计算结果的对比,验证了数值仿真计算模型的精度.为飞机风挡的抗鸟撞结构设计-数值仿真-实验验证一体化技术提供了支持论证.

关 键 词:飞机  风挡  一体化设计  数值仿真  接口程序  结构材料  仿真计算  一体化技术  非线性有限元分析  初步设计
修稿时间:2004年7月27日

ON THE INTEGRATED DESIGN TECHNIQUE OF WINDSHIELD AGAINST BIRD-STRIKE
BAI Jinze SUN Qin.ON THE INTEGRATED DESIGN TECHNIQUE OF WINDSHIELD AGAINST BIRD-STRIKE[J].Mechanics and Engineering,2005,27(1):14-18.
Authors:BAI Jinze SUN Qin
Abstract:Modern numerical simulation plays a very significant role in structural design engineering in improving the design qualities, shortening the development period and reducing cost. Applying a commercial finite element analysis system, this paper presents an integrated design process of frontal windshield of an airplane, including CAD structural design, numerical simulation and experimental validation. The paper discusses the reasonable element selection, material constitutive model, the effect of different boundary conditions and experimental arrangements. Especially a three-dimensional non-linear viscoelastic model is derived and coded. A bird impact windshield experiment is carried out, and the comparison of the experiment with the numerical simulation is performed, showing that the simulation results in this paper enjoy a high level of credibility, as shown in Figs.3 through 12.
Keywords:numerical simulation  frontal windshield  non-linear viscoelastic model  anti-bird impact design
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