TBM液压管道抗振结构设计方法

发布时间：2018-04-24 07:17

本文选题：基础振动 + 液压管道　；参考：《北京航空航天大学学报》2017年02期

【摘要】：针对硬岩掘进机工作过程中产生的强烈振动影响管道的工作性能的问题,建立了基础振动下两端固定支撑输流管道横向振动的数学模型,运用Galerkin方法和等效弯矩法对管道最大应力进行了数值求解,并且用实验证实了数学模型的正确性。研究了基础振动参数对管道最大应力的影响规律,并根据最大应力判据条件得到了不同基础振动参数下管道工作的正常-失效区域,制定了以流量-压力-强振动参数为依据的管道抗振结构设计方法。结果表明:基础振动会引起液压管道应力剧增而导致其工作失效,新的设计方法能有效改善强振动环境下管道的工作性能。
[Abstract]:Aiming at the problem that the strong vibration produced by the hard rock roadheader affects the working performance of the pipeline, a mathematical model of the lateral vibration of the pipe with fixed support at both ends under the foundation vibration is established. The maximum stress of pipeline is solved numerically by Galerkin method and equivalent moment method, and the correctness of the mathematical model is verified by experiments. The influence of foundation vibration parameters on the maximum stress of pipeline is studied. According to the criterion condition of maximum stress, the normal-failure zone of pipeline working under different foundation vibration parameters is obtained. The design method of pipeline anti-vibration structure based on flow-pressure-strong vibration parameters is established. The results show that the foundation vibration will cause the stress of the hydraulic pipeline to increase sharply and lead to its working failure. The new design method can effectively improve the working performance of the pipeline under the strong vibration environment.
【作者单位】：中南大学机电工程学院;中南大学高性能复杂制造国家重点实验室;
【基金】：国家“973”计划(2013CB035404)~~
【分类号】：U455.3

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