| 机械振动结构的ARMRX建模及模态参数识别 |
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| 引用本文： | 李冬伟,白鸿伯,齐晓慧.机械振动结构的ARMRX建模及模态参数识别[J].机械科学与技术(西安),2005,24(12):1515-1518. |
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| 作者姓名： | 李冬伟 白鸿伯 齐晓慧 |
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| 作者单位： | 军械工程学院,石家庄050003 |
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| 基金项目： | 国家自然科学基金项目（50105021）,国家教育部《高等学校骨干教师资助计划》和军械工程学院创新人才启动基金资助 |
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| 摘 要： | 由振动系统的运动方程建立了描述系统输入、输出和噪声特性的受控自回归滑动平均模型(ARMAX)。采用基于限定记忆的增广最小二乘算法估计其参数,克服了以往传统方法计算的复杂性,以及难以在线的缺点。仿真结果表明本文方法鲁棒性较好。
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| 关 键 词： | 振动系统建模 ARMAX模型 增广最小二乘 |
| 文章编号： | 1003-8728（2005）12-1515-04 |
| 收稿时间： | 2004-11-24 |
| 修稿时间： | 2004-11-24 |
Identification of Model Parameters for Structure Using Time Series Analysis |
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| Li Dongwei, Bai Hongbai, Qi Xiaohui.Identification of Model Parameters for Structure Using Time Series Analysis[J].Mechanical Science and Technology,2005,24(12):1515-1518. |
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| Authors: | Li Dongwei Bai Hongbai Qi Xiaohui |
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| Affiliation: | Ordnance Engineering College, Shijiazhuang 050003 |
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| Abstract: | Based on motion eqations of vibrating systems, the paper establishes the ARMAX model, which describes input,output and noise characteristice of the system. The recursive extended least squares algorithm based on limited memory is adopted for estimating ARMAX model parameters. The method overcomes some drawbacks such as high computational complexities and difficulties of online identification. Simulation results show that the proposed method exhibits good robust properties. |
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| Keywords: | vibrating system modeling ARMAX model recursive extended least squares |
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