Evaluation of frame strength and fatigue safety performance of certaintrack inspection vehicle

doi:10.16265/j.cnki.issn1003-3033.2018.S2.027

Abstract

Abstract: In order to ensure the safety of track inspection vehicle, firstly,the finite element model was established,according to the structure characteristics of the bogie frame equipped with track inspection beam. Secondly, the working conditions of the strength analysisweredefined based on relevant Standards.The static strength of the frame was calculated and evaluated. Then, the influence of optimization of the track inspection beam installation on the whole structure strength was analyzed. The fatigue strength was evaluated based on Goodman fatigue limit diagram. Finally, the structural strength test was carried out to verify the analytical calculation results.The results show that track inspection vehicle bogie frame isequipped with a rail inspection beam with a certain quality, which helps to ensure the safe and reliable operation of the rail inspection vehicle.The frame can meet the request of static and fatigue strength.

Key words: track inspection beam, frame, finite element, strength, test

CLC Number:

X913.4

XIE Jinling, ZHANG Wenqing, XIE Chunyin. Evaluation of frame strength and fatigue safety performance of certaintrack inspection vehicle[J]. China Safety Science Journal, 2018, 28(S2): 143-148.

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