• ISSN 0258-2724
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Volume 26 Issue 2
Apr.  2013
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Journal of Southwest Jiaotong University  > 2013  >  26(2): 205-210.
PANG Xiaoping, CHEN Jin. Multi-objective Shape Optimization of Hydrodynamic Journal Bearings Using Non-dorminated Sorting Genetic Algorithm Ⅱ[J]. Journal of Southwest Jiaotong University, 2012, 25(4): 639-645. doi: 10.3969/j.issn.0258-2724.2012.04.017
Citation: PU Hanjun, XIE Xiaopeng, LIANG Guangchi. Lifting Dynamic Characteristics of Crane with Frequency Control[J]. Journal of Southwest Jiaotong University, 2013, 26(2): 205-210. doi: 10.3969/j.issn.0258-2724.2013.02.003
shu

Lifting Dynamic Characteristics of Crane with Frequency Control

doi: 10.3969/j.issn.0258-2724.2013.02.003
  • Received Date: 10 Aug 2011
  • Publish Date: 25 Apr 2013
    Abstract
  • For purpose of calculating the lifting dynamic load in a crane accurately, a generalized precise direct integration method was proposed to analyze dynamic characteristics of the load-lifting system of the crane. Using this method, the dynamic responses of the system during the load-lifting process of the frequency conversion crane were studied, and the dynamic characteristics of the crane system under various accelerating modes were obtained. The results show that the dynamic lifting coefficient is linear with the lifting speed and exponential with the acceleration time. Compared with the step speed regulation, the frequency conversion speed regulation can reduce the hoisting dynamic load of the crane system by 10% to 60%.

     

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