| 统计等效多项式非线性系统识别 |
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| 引用本文： | 邱阳,张景绘.统计等效多项式非线性系统识别[J].西安交通大学学报,1993,27(6):1-8,18. |
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| 作者姓名： | 邱阳 张景绘 |
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| 作者单位： | 西安交通大学工程力学系
(邱阳)，西安交通大学工程力学系(张景绘) |
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| 基金项目： | 机械结构与振动国家重点实验室基金，国家教委博士点基金 |
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| 摘 要： | 在平稳激振下的一个非线振动系统，若其响应也是平衡随机过程，该系统可统计等效为一多项多非线性系统，本文介绍统计等效三次多项式的参数估计，系统的多维频率响应应函数以及多项式非线性系统响应的谱分析及谱分析。
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| 关 键 词： | 非线性系统 多项式 统计等效 |
IDENTIFICATION OF STATISTIC EQUIVALENT POLYNOMIAL NON-LINEAR SYSTEM |
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| Qiu Yang Zhang Jinghui.IDENTIFICATION OF STATISTIC EQUIVALENT POLYNOMIAL NON-LINEAR SYSTEM[J].Journal of Xi'an Jiaotong University,1993,27(6):1-8,18. |
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| Authors: | Qiu Yang Zhang Jinghui |
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| Affiliation: | Department of Engineering Mechanics |
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| Abstract: | If the response of a non-linear vibration system to a stationary excitation is also a stationary random process, this system may be a statistic equivalent polynomial non-linear system. This paper presents the statistic equivalent polynomial estimation method, the Multi-Dimension Frequency Response Function (MFRF) of equivalent 3rd order polynomial system. The spectral analysis and spectral decomposition of the response of the polynomial non-linear system is also introduced. |
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| Keywords: | non-linear system polynomial parameter identification spectral analysis |
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