THE FEEDBACK AUTOMATION IDENTIFICATION OF THE BASE IMPORTING SPECTRUM IN ANSYS''''S PSD ANALYSIS
随机振动数值仿真中基础激励的自动反馈识别

In this paper,a program for feedback automation control in the ANSYS's PSD(power spectrum density) analysis is developed in the powerful APDL(ANSYS Parametric Design Language) language.Multi- table is used to store the base importing spectrum,which has lifted the limit that the base importing spectrum can only be described by less than 50 data points.So the base importing spectrum can be identified via a feedback.The computing efficiency and precision are improved greatly.