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Fatigue Life Analysis of Crusher Key Components for the Green Remanufacturing

Author: ZhongShengGuo
Tutor: DuanGuoLin
School: Hebei University of Technology
Course: Mechanical Engineering
Keywords: remanufacturing modal analysis crusher fatigue analysis
CLC: TD451
Type: Master's thesis
Year: 2011
Downloads: 98
Quote: 0
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Abstract


Remanufacturing engineering technology gets more and more attention that accord with the sustainable development. Remanufacturing engineering is one of the optimal methods to solve the waste of resources, environment pollution and recycled equipment renovation. In the meantime, it is an important way to develop circular economy and economical society. Crusher is main equipment for mining machinery. Fatigue life analysis of parts is an important part of remanufacturing engineering, which have important engineering practice significance.The existing remanufacturing research and industry are summarized in this paper, focus on the fatigue life analysis of remanufacturing blank, and act crusher spindle as an object of study. The fatigue life methods including stress analysis, strain life analysis, fracture fatigue analysis and modal synthesis method are analysized. Based on modal method theory, a complete crusher finite element analysis model is built in the environment of PATRAN, the work modal parameters results are attained by NASTRAN solver. Modal analysis is implemented based on modal synthesis method; the modal results of flexible spindle of crusher are obtained.The dynamic simulation model of main structure on crushers is built by ADAMS software, the rigid body spindle is replaced by the flexible body, Multi-body dynamics simulation is carried out and modal time history load of crusher spindle is extracted. Fatigue simulation model is built in Fatigue part,putting mode analysis results and modal time history load to Fatigue simulation model,combined with material SN curve, the results of Fatigue life is acquired. Fatigue life of crusher spindle is solved by numerical analysis method, by comparing the numerical results to fatigue simulation results, the accuracy of simulation analysis results and the remanufacturability are verified.

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CLC: > Industrial Technology > Mining Engineering > Mining machinery > Processing machinery > Crusher
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