| 基于ADAMS风洞柔壁喷管动力学仿真分析 |
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| 引用本文： | 聂旭涛,郭隆德,刘伯林.基于ADAMS风洞柔壁喷管动力学仿真分析[J].实验流体力学,2011,25(2):73-76. |
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| 作者姓名： | 聂旭涛 郭隆德 刘伯林 |
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| 作者单位： | 中国空气动力研究与发展中心,四川绵阳,621000 |
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| 摘 要： | 基于刚柔耦合动力学理论,联合ADAMS和PATRAN/NASTRAN软件,对风洞柔壁喷管进行了动力学仿真,同时运用NASTRAN软件有限元分析了柔壁部件的非线性变形.比较两种计算结果发现,忽略柔壁变形的非线性,动力学仿真会存在较大误差.为此,采用分段线性化的方法,计入柔壁的非线性变形,改进柔壁喷管的动力学仿真模型.结果表明:改进后的动力学仿真准确度较高,可应用于柔壁喷管运动控制设计.最后,进一步分析了推杆驱动位移对柔壁结构强度的影响关系,为合理控制推杆驱动,确保柔壁无损伤提供必要的理论依据.
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| 关 键 词： | ADAMS 刚柔耦合 非线性 分段线性化 |
Dynamics simulation and analysis of flexible nozzle in wind tunnel based on ADAMS |
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| NIE Xu-tao,GUO Long-de,LIU Bo-lin.Dynamics simulation and analysis of flexible nozzle in wind tunnel based on ADAMS[J].Experiments and Measur in Fluid Mechanics,2011,25(2):73-76. |
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| Authors: | NIE Xu-tao GUO Long-de LIU Bo-lin |
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| Institution: | NIE Xu-tao,GUO Long-de,LIU Bo-lin(China Aerodynamics Research and Development Center,Mianyang Sichuan 621000,China) |
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| Abstract: | Based on the theory of rigid-flexible coupling dynamics,the dynamics simulation of flexible nozzle in wind tunnel is done by using the software of ADAMS and PATRAN/NASTRAN.At the same time,the nonlinear deformation of flexible wall is analyzed through the finite element software of NASTRAN.The comparison of these two results indicates that neglecting the nonlinear deformation of the flexible wall can bring big errors to the dynamics simulation.Therefore,the dynamics simulation model is improved by using the... |
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| Keywords: | ADAMS rigid-flexible coupling nonlinear segmented linearization |
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