最大计权振级计算方法的探讨

Study on the Algorithm of Maximum Weighted Vibration Level

最大计权振级是我国环境振动控制中一个常见的评价指标,但是由于谱估计方法的频率分辨率无法达到振级计算的要求,因此使用不同计算方法可能导致计算振级之间的误差。为此,探讨最大计权振级的多种计算方法和其具体实现,并分析各方法的优劣。同时提出一套基于增量方法的快速高精度的最大计权振级的计算方法,该方法的时间复杂度为O(n)。

Maximum vibration level is a commonly-used indicator for environmental vibration control. However, since the frequency resolution of the spectral estimation method is unable to meet the requirements of vibration level computation, the results may be quite different when different algorithm methods are applied. In this paper, three different algorithm methods for calculating the maximum vibration level were given and discussed. Meanwhile, a fast high-precision incremental approach was proposed. The method has a time complexity of O（n）.