發(fā)布時間：2018-09-11 07:35

【摘要】：以二階線性系統(tǒng)為信息檢測處理模型,提出二階線性系統(tǒng)調(diào)參共振的特征信號檢測方法。該方法利用線性系統(tǒng)的共振特性,得到系統(tǒng)響應(yīng)最大值隨固有頻率變化的特性曲線,根據(jù)曲線中的極大值即可識別噪聲中的特征信號。仿真和轉(zhuǎn)子故障診斷實驗表明,所提出的方法原理簡單,能為實際信號檢測與處理提供一種可行實用的方法。
[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.
【作者單位】： 天津大學(xué)機械工程學(xué)院;天津大學(xué)機構(gòu)理論與裝備設(shè)計教育部重點實驗室;
【基金】：國家自然科學(xué)基金資助項目(51275336) 高等學(xué)校博士學(xué)科點專項科研基金資助項目(20120032110001)
【分類號】：TN911.23
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本文編號：2236034