针对碟式分离机转鼓在运行情况下应力测试难的问题,在碟式分离机转鼓试验台上,对两种不同的结构(单个转鼓和转鼓组件)开展了无线动态应力测试,并结合有限元仿真进行了对比研究.采用WiFi无线通讯技术进行电阻应变测试实验,直接获得不同位置不同转速下的转鼓内壁应力应变数据,并与行业标准JB/T 8051-2008《离心机转鼓强度计算规范》和有限元仿真分析得到的结果进行对比分析.研究结果表明,将有限元法的计算结果和实验数据进行了比较,两者基本吻合;空转鼓旋转时,转鼓组件鼓壁内的环向应力大于单个转鼓鼓壁内的环向应力,而且随着分离机转速的提高,两者相差越大;单个转鼓的应力情况跟规范基本吻合,说明直接使用规范中的公式会有一定偏差.%Aiming at the difficulty of testing the stress of the disc separator drum under running condition, in the disc separator drum test bed, two different structures ( single drum and drum assembly) were subjected to wireless dynamic stress testing, and compared with finite element simulation. Using the WiFi wireless communication technology for resistance strain testing experiments, the stress and strain data of inner wall of drum were obtained directly under different positions and different rotating speed, and compared with the results of comparative analysis of JB/T 8051-2008 "centrifuge drum strength calculation norms" and finite element simulation analysis. The results indicate that the calculated results of the finite element method are in good agreement with the experimental data. It finds that the hoop stress in the drum wall is larger than that of the single drum cylinder when the empty drum is rotating, and with the increase of the rotation speed, the difference is bigger;but the stress condition of the single drum is basically consistent with the specification, indicating that the formula in the direct use of the specification will have a certain deviation.
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