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基于灵敏度分析技术与优化设计的导弹模型修正方法

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基于灵敏度分析技术与优化设计技术,提出导弹模态参数修正的新方法。首先提出模型修正的新方法,给出某型导弹的有限元模型,计算其模态后,发现计算结果与实验辨识结果相差较大。选定需修正的材料参数,建立导弹结构的灵敏度分析模型和 Matlab 优化设计模型。最后,运用给出的模型修正方法对结构进行模态参数修正。结果表明,修正模型的计算模态与实验值吻合较好,验证了模型修正方法。
A Model Updating Method for Rocket Based on the Sensitivity Analysis and Optimization Design Technology
Based on the sensitivity analysis and optimization design technology, a new model updating method for rocket is put forward. Firstly, the new method for model updating is presented, and a FEM model for rocket is established subsequently. It is found through mode calculation that the simulation result of the modes is different from the experimental result. Then, the sensitivity analysis model and the optimization design model based on Matlab are established after the parameters to be updated are selected. Finally, the model is updated by the new method. The result suggests that the mode simulation results of the updated model fit well with the experimental value, which validates the model updating method.

VibrationModeSensitivity analysisOptimizationModel updating

王亮、商霖、李炳蔚、牛志玲

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中国运载火箭技术研究院,北京,100076

振动 模态 灵敏度分析 优化设计 模型修正

2013

导弹与航天运载技术
中国运载火箭技术研究院

导弹与航天运载技术

CSTPCD北大核心
影响因子:0.238
ISSN:1004-7182
年,卷(期):2013.(1)
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