... of investigations on reduction of the axial vibration using vibration absorbers with 1-D analysis. simulation metals & mining section lifting pipe dynamic analysis buffer motion manganese nodule mining manganese nodule thickness lifting pipe lifting pipe model vibration pipe string buffer...

... of the melhods, ShPpcd pipe with absorber, clastic joints INTRODUCTION For mining manganese nodules from deep-sea floors by a pump-lift system, as shown in Fig. I, a very long pipe-string is needed to connect the mining ship on the sea surface with a miner on the sea floor. The string, however, is easy...

... ABSTRACT: In order to reduce the longitudinal vibration of the pipe string in mining manganese nodules from deepsea bottoms, the investigation of the shape effects of various buffers attached to the string reported that the resonance amplitude of the buffer whose shape caused a larger drag...