机械研究与应用
機械研究與應用
궤계연구여응용
Mechanical Research & Application
2015年
4期
116-117,122
,共3页
表面粗糙度%测量降噪处理%小波分解%自适应滤波算法
錶麵粗糙度%測量降譟處理%小波分解%自適應濾波算法
표면조조도%측량강조처리%소파분해%자괄응려파산법
surface roughness%measurement de-noise processing%wavelet decomposition%self-adaptive filtering algorithm
在对机械加工零件进行表面粗糙度的测量过程中，采集的表面原始轮廓信号伴随的随机噪声对表面粗糙度测量值的影响非常大。为了滤除噪声，将小波分解自适应滤波算法应用到表面粗糙度测量领域，设计出用于表面粗糙度测量的自适应滤波器，并采用小波分解与最小均方实现算法，算法简便，易于实现。仿真结果表明：小波分解自适应滤波方法在表面粗糙度测量过程中有较好的降噪效果，具有一定的应用价值。
在對機械加工零件進行錶麵粗糙度的測量過程中，採集的錶麵原始輪廓信號伴隨的隨機譟聲對錶麵粗糙度測量值的影響非常大。為瞭濾除譟聲，將小波分解自適應濾波算法應用到錶麵粗糙度測量領域，設計齣用于錶麵粗糙度測量的自適應濾波器，併採用小波分解與最小均方實現算法，算法簡便，易于實現。倣真結果錶明：小波分解自適應濾波方法在錶麵粗糙度測量過程中有較好的降譟效果，具有一定的應用價值。
재대궤계가공령건진행표면조조도적측량과정중，채집적표면원시륜곽신호반수적수궤조성대표면조조도측량치적영향비상대。위료려제조성，장소파분해자괄응려파산법응용도표면조조도측량영역，설계출용우표면조조도측량적자괄응려파기，병채용소파분해여최소균방실현산법，산법간편，역우실현。방진결과표명：소파분해자괄응려파방법재표면조조도측량과정중유교호적강조효과，구유일정적응용개치。
In process of the surface roughness measurement of the machined parts, the random noise accompanying with the o-riginal shape signal has great influence on the surface roughness measuring value. In order to filter out the noise, the wavelet decomposition adaptive filtering algorithm is used in the field of surface roughness measurement, the adaptive filter for the sur-face roughness measurement is designed, and the wavelet decomposition and the least mean square algorithm which is simple and easily realized are applied. The simulation results show that the wavelet decomposition adaptive filtering method has good noise reduction effect in the measurement of the surface roughness, and it has certain application value.
