二阶线性系统调参共振的特征信号检测
发布时间：2018-09-11 07:35
【摘要】：以二阶线性系统为信息检测处理模型,提出二阶线性系统调参共振的特征信号检测方法。该方法利用线性系统的共振特性,得到系统响应最大值随固有频率变化的特性曲线,根据曲线中的极大值即可识别噪声中的特征信号。仿真和转子故障诊断实验表明,所提出的方法原理简单,能为实际信号检测与处理提供一种可行实用的方法。
[Abstract]:Taking the second-order linear system as the model of information detection and processing, a method for detecting the characteristic signal of parametric resonance of second-order linear system is proposed. By using the resonance characteristics of the linear system, the characteristic curve of the system response maximum varying with the natural frequency is obtained. According to the maximum value of the curve, the characteristic signal in noise can be identified. Fault diagnosis experiments show that the proposed method is simple in principle and can provide a feasible and practical method for actual signal detection and processing.
【作者单位】： 天津大学机械工程学院;天津大学机构理论与装备设计教育部重点实验室;
【基金】：国家自然科学基金资助项目(51275336) 高等学校博士学科点专项科研基金资助项目(20120032110001)
【分类号】：TN911.23
，
本文编号：2236034
[Abstract]:Taking the second-order linear system as the model of information detection and processing, a method for detecting the characteristic signal of parametric resonance of second-order linear system is proposed. By using the resonance characteristics of the linear system, the characteristic curve of the system response maximum varying with the natural frequency is obtained. According to the maximum value of the curve, the characteristic signal in noise can be identified. Fault diagnosis experiments show that the proposed method is simple in principle and can provide a feasible and practical method for actual signal detection and processing.
【作者单位】： 天津大学机械工程学院;天津大学机构理论与装备设计教育部重点实验室;
【基金】：国家自然科学基金资助项目(51275336) 高等学校博士学科点专项科研基金资助项目(20120032110001)
【分类号】：TN911.23
，
本文编号：2236034
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