Modeling and control of guide-disk speed of rotary piercer
基于改进PCA–ELM方法的穿孔机导盘转速测量

Recently,to improve the quality of seamless steel tubes,many domestic billet enterprises use skew rolling piercer with Diescher guide-disc to pierce steel billets.However,in skew rolling piercing,the guide-disc speed can't be measured directly because of the limitations in practical conditions.Therefore,an online soft measurement of the guide-disc speed has to be developed for controlling the guide-disc speed to improve the productivity and quality of steel tubes.To cope with this problem,we propose a measu...