| 高维非线性振动系统参数识别 |
| |
| 引用本文： | 苏鸾鸣,叶敏.高维非线性振动系统参数识别[J].力学学报,2012,44(2):425-436. |
| |
| 作者姓名： | 苏鸾鸣 叶敏 |
| |
| 作者单位： | 浙江大学航空航天学院力学系, 杭州 310027 |
| |
| 基金项目： | 国家自然科学基金资助项目 |
| |
| 摘 要： | 将增量谐波平衡非线性识别推广到高维振动系统, 推导了基于增量谐波平衡的多自由度非线性系统的识别方程. 针对一个两自由度系统进行了数值模拟计算, 讨论了系统在单周期、倍周期和混沌运动状态下的参数识别, 以及噪声对识别结果的影响, 验证了增量谐波平衡非线性识别在多自由度系统中的有效性. 结果表明, 该方法具有较高的计算效率和识别精度, 以及良好的抗噪能力.
|
| 关 键 词： | 增量谐波平衡 参数识别 高维非线性系统 周期和混沌运动 |
| 收稿时间： | 2011-06-01 |
| 修稿时间： | 2011-09-13 |
PARAMETRIC INDENTIFICATION FOR HIGH-DIMENSIONAL NONLINEAR VIBRATION SYSTEM |
| |
| Su Luanming Ye Min.PARAMETRIC INDENTIFICATION FOR HIGH-DIMENSIONAL NONLINEAR VIBRATION SYSTEM[J].chinese journal of theoretical and applied mechanics,2012,44(2):425-436. |
| |
| Authors: | Su Luanming Ye Min |
| |
| Institution: | School of Aeronautics and Astronautics, Zhejiang University, Hangzhou 310027, China |
| |
| Abstract: | The incremental harmonic balance nonlinear identification(IHBNID) is extended to high-dimensional nonlinear vibration system.The identification equation of multi-degree-of-freedom nonlinear dynamic system is derived.Numerical simulation on a two-degrees-of-freedom nonlinear system example,based on the IHBNID, was carried out on the period-1,the period-doubling and the chaotic motions.The effect of noise on the identification parameters is analyzed.The effectiveness of the IHBNID is verified for multi-degree-of-freedom nonlinear dynamic system.The simulating results show that the proposed method has high accuracy and efficiency,and can improve the antinoise ability. |
| |
| Keywords: | incremental harmonic balance parameter identification high-dimensional nonlinear system period and chaotic motion |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《力学学报》浏览原始摘要信息 |
| 点击此处可从《力学学报》下载免费的PDF全文 |
|
