Comparison between distance test method and spectrum analysis method for simulation results

According to dynamic consistency test of simulation results, comparative analysis of distance test method and spectrum analysis method is given. The results show that data in the time domain must be transformed into frequency domain, and then dynamic consistency of simulation result can be tested by spectrum analysis method. While order of sample series data can not be reflected through the transformation, namely, order of sample series data between measured sample series and simulation sample series can not be tested, therefore, the spectrum analysis method is suitable only for stationary time series of negligible order. However, order of sample series data is an important parameter to be tested in actual engineering. For example, two trajectories of first climbing then decreasing and first decreasing then climbing are entirely different, so the spectrum analysis method cannot test them effectively. The distance test method can realize quantitative test of dynamic consistency for simulation results in time domain, and it is suitable for the stationary and the non-stationary time series, which can solve the problem of dynamic consistency quantitative test.