| 汽车侧面碰撞模型的非线性动力学参数辨识 |
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| 引用本文： | 刘学军,张金换,黄世霖.汽车侧面碰撞模型的非线性动力学参数辨识[J].清华大学学报(自然科学版),1999(2). |
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| 作者姓名： | 刘学军 张金换 黄世霖 |
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| 作者单位： | 清华大学,汽车工程系,北京,100084 |
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| 摘 要： | 为了在汽车侧面碰撞动力学系统模型中，获得一些无法通过试验方法直接获得的未知系统特性参数，采用了参数辨识技术，它是根据动力学系统在特定的载荷作用下的输出响应，确定动力学模型中的未知特性参数；介绍了一种基于卡尔曼滤波法的非线性动力学参数的辨识方法，并将其应用于汽车侧面碰撞模型的参数辨识中。利用辨识出的模型参数计算出模型的输出响应，该响应与仿真试验数据吻合良好，表明该方法是非线性动力学参数辨识的有效手段。
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| 关 键 词： | 汽车 侧面碰撞模型 非线性动力学参数辨识 卡尔曼滤波 |
Nonlinear dynamics parameter identification for vehicle side-impact model |
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| LIU Xuejun,ZHANG Jinhuan,HUANG Shilin.Nonlinear dynamics parameter identification for vehicle side-impact model[J].Journal of Tsinghua University(Science and Technology),1999(2). |
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| Authors: | LIU Xuejun ZHANG Jinhuan HUANG Shilin |
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| Abstract: | Models of dynamic systems often contain unknown system parameters which can not be determined directly with test. Parameter identification techniques are the method which determines the unknown parameters based on the overall system response under specific dynamic loading. A method based on Kalman filter was introduced for identifying the unknown parameters in a nonlinear vehicle side impact model which produces a high degree of correlation between the model response and simulated test result. This method is an effective means for identifying the nonlinear dynamics parameters. |
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