【摘要】 本文对最大熵谱法(MEM)实际用于爆炸振动和天然脉动等各种动力学参量的谱分析作了详细应用研究;给出了不同的样本长度、参量和分析方法(如 FFT)的对比结果,证明了 MEM 法在动力学参量的谱分析中应用是有效的。文内还提出了用 MEM 法求取瞬态振动波形阻尼比的方法,给出了实际计算结果。更多还原

【Abstract】 This paper presents in detail about the researches and applications of the maxi- mum entropy method(MEM)to spectral analysis of blast vibration and natural pulsa- tion and other kinds of dynamic parameters;the comparing results for the difference of the sample length and the parameters and the analysis method(for example.FFT) are given;it has proved that the MEM is effective in the applications of the spectral analysis for dynamic parameters.In this paper,by using the MEM,the method for culculating the damping ratio of the waves of transient vibration is aslo presented, and the practical culculation result are given.更多还原