为了对钢桁架结构的损伤情况进行比较准确的检测,应用了柔度曲率幅值突变系数法。
For precisely testing the damage of the steel truss, the method of the sudden change coefficient of the flexibility curvature was used.
根据结构本身的受力特点,给定损伤情况,进而计算出结构损伤时的柔度曲率幅值突变系数。
According to the structure's behavior, if the structure's damage was given, the abrupt coefficient of flexibility curvature can be calculated out.
介绍了针对幅值突变信号及一阶微分有突变的信号利用多分辨分析进行突变征兆提取的理论及方法,并给出了仿真实例。
The extraction theory and method of fault signal jump omen based on multi-resolution analysis are introduced, and a simulation example is presented.
数值模拟的结果表明:用柔度曲率幅值突变系数法可以对钢桁架结构单个或多个结构同时出现的情况进行比较准确的判定。
The results of the simulation indicate that using the method of the sudden change coefficient of flexibility curvature, the single or multi damage of the steel truss were tested more precisely.
经过数值模拟和实际实验验证,结果表明,柔度曲率幅值突变系数可以较好的对一个或多个节点质量增加的情况进行检测。
The numerical simulation and practical experiment results indicate that single or several nodes' mass increasing can be measured by the abrupt coefficient of flexibility curvature.
讨论了由于间歇信号嵌入导致经验模式分解结果出现模态混叠的现象,指出极值点序列幅值突变是产生模态混叠的根本原因。
The reason to mode mixing in the result of empirical mode decomposition is discussed in respect of the variation of extremum series.
讨论了由于间歇信号嵌入导致经验模式分解结果出现模态混叠的现象,指出极值点序列幅值突变是产生模态混叠的根本原因。
Aiming at the mode mixing problem caused by intermittency signal in the sifting process of empirical mode decomposition (EMD), a new solution is presented.
实验结果表明,当伺服放大器增益和输入信号的幅值较大时都有可能促成系统的相位突变。
The experiment results show that phase phenomena are probably caused while the servo amplifier gain and the amplitude of input signal increase to some extent.
实验结果表明,当伺服放大器增益和输入信号的幅值较大时都有可能促成系统的相位突变。
The experiment results show that phase phenomena are probably caused while the servo amplifier gain and the amplitude of input signal increase to some extent.
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