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论文类型：期刊论文

发表时间：2017-08-01

发表刊物：JOURNAL OF VIBROENGINEERING

收录刊物：SCIE、EI

卷号：19

期号：5

页面范围：3895-3910

ISSN号：1392-8716

关键字：polar cranes; dynamic analysis; rope-pulley system; common tangent between spatial pulleys; angular speed of pulley

摘要：A systematic method to analyze the trajectory of hook block for polar crane in nuclear power plant (NPP) is proposed, in which dynamic equations of the system and the compatibility conditions for drum parameters are presented. Properties and formulations of the variables involved in these equations are studied in detail. A method to describe the rope-pulley system is given and a numerical method is derived to solve the positions and velocities of the common tangents that consistent with the reeving ropes between spatial pulleys. Based on these displacements and velocities, the angular speeds of pulleys are given to solve the difficulty to confirm the rotating directions of pulleys in some rope-pulley systems. A numerical example contrasting the dynamic model with corresponding static model is demonstrated to validate the systematic method. The proposed method is largely universal and can be a reference for designing and analyzing of polar cranes in NPP.