CAJ | 학술논문

为降低复杂信号模型识别困难，采用把线性参数和非线性参数分开识别的方法．该法可用于对立辊轧机冲击振动加速度信号的识别．通过识别到的加速度信号解析式，可得到振动速度及振动位移．该解析法具有较高的消噪能力，并可识别出高精度的轧机系统振动模态参数．
위강저복잡신호모형식별곤난，채용파선성삼수화비선성삼수분개식별적방법．해법가용우대립곤알궤충격진동가속도신호적식별．통과식별도적가속도신호해석식，가득도진동속도급진동위이．해해석법구유교고적소조능력，병가식별출고정도적알궤계통진동모태삼수．
For lowering the difficulty of identifying the complicated signals, the linear and nonlin.ear param- eters in the simulation models have been separated and recognized with two different methods. This means has been successfully used to identify the acceleration model of a shock response signal for the vertical mill- ers. Through the analytical expressions of the acceleration signals, the vibration velocity and vibration dis- placement signals can be easily reached. The method presented in this paper has higher de-noising ability, and the accurate modal parameters can also be identified.