采用动力测试的双转子卧螺离心机模型修正

周瑾,高天宇,陈怡,席鸿皓

Model updating of dual-rotor decanter centrifuge with dynamic test

Jin ZHOU,Tian-yu GAO,Yi CHEN,Hong-hao XI

表 4 内转子模型修前后各阶频率与试验对比结果

Tab.4 Comparison of modal frequencies of screw conveyor between test and finite element calculation before and after updating

阶次 ft/Hz foa/Hz Δf1/% fua/Hz Δf2/% 1 528.6 514.9 2.59 529.5 0.17 2 1 211.4 1 146.5 5.36 1 185.4 2.15 3 1 914.0 2 005.7 4.79 2 051.6 7.19