强振动环境下液压管道主动减振建模
发布时间：2018-08-01 12:02
【摘要】：针对在强振动环境下工作的液压管道,建立振动液压管道梁模型,并结合管道流固耦合横向振动模型建立管道的主动减振模型。运用特征线和差分计算方法求解该数学模型,并且研究主动振动相位差、频率、作用位置和幅值对管道振动的影响规律,得到各减振参数对管道最大幅值和最大应力的影响曲线。发现当振动相位差为π时能使管道的最大幅值和最大应力分别降低44.55%和39.69%,并且适当调整其他三个参数有更佳的减振效果。研究结果表明,使用主动减振方法能够有效减小管道的振动,为管道主动减振提供一定的理论参考。
[Abstract]:Aiming at the hydraulic pipeline working under the strong vibration environment, the vibration hydraulic pipe beam model is established, and the active vibration reduction model of the pipeline is established by combining the fluid-solid coupling transverse vibration model of the pipeline. The characteristic line and difference method are used to solve the mathematical model, and the influence law of active vibration phase difference, frequency, action position and amplitude on pipeline vibration is studied. The influence curves of the vibration absorption parameters on the maximum value and stress of the pipeline are obtained. It is found that when the vibration phase difference is 蟺, the maximum amplitude and maximum stress of the pipeline can be reduced by 44.55% and 39.699.69%, respectively, and the other three parameters can be adjusted properly. The results show that the active vibration reduction method can effectively reduce the vibration of the pipeline and provide a certain theoretical reference for the active vibration reduction of the pipeline.
【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】：国家重点基础研究发展计划资助项目(973计划,2013CB035400)
【分类号】：TH137;TB535
[Abstract]:Aiming at the hydraulic pipeline working under the strong vibration environment, the vibration hydraulic pipe beam model is established, and the active vibration reduction model of the pipeline is established by combining the fluid-solid coupling transverse vibration model of the pipeline. The characteristic line and difference method are used to solve the mathematical model, and the influence law of active vibration phase difference, frequency, action position and amplitude on pipeline vibration is studied. The influence curves of the vibration absorption parameters on the maximum value and stress of the pipeline are obtained. It is found that when the vibration phase difference is 蟺, the maximum amplitude and maximum stress of the pipeline can be reduced by 44.55% and 39.699.69%, respectively, and the other three parameters can be adjusted properly. The results show that the active vibration reduction method can effectively reduce the vibration of the pipeline and provide a certain theoretical reference for the active vibration reduction of the pipeline.
【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】：国家重点基础研究发展计划资助项目(973计划,2013CB035400)
【分类号】：TH137;TB535
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