2500型五缸压裂泵整机模态分析及结构优化  

Modal Analysis and Structural Optimization of Model 2500 Five-cylinder Fracture Pump

作　　者：莫丽[1] 黄岗[1] 何霞[1] 林琳 

机构地区：[1]西南石油大学机电工程学院 [2]成都佳士科技有限公司

出　　处：《石油机械》2012年第7期67-69,80,共4页China Petroleum Machinery

基　　金：国家科技重大专项"大型油气田及煤层气开发"(2008ZX05037)的部分研究内容

摘　　要：压裂泵在工作过程中,因承受复杂的组合载荷而产生明显振动,为保证其安全、有效地工作,有必要对其整机动态性能进行研究。为此,利用Solidworks Simulation分析软件,建立了某2500型五缸压裂泵整机组装模型,并进行了有限模态分析。分析结果表明,该五缸压裂泵在设计的最高冲数时存在共振的危险。根据该模态分析结果及振型分析结果,对压裂泵的拉杆进行结构优化,结果表明,优化拉杆能有效提高五缸压裂泵整机固有频率,接近激励源的前3阶固有频率有效大幅度的提高,泵整机的最小固有频率由59.659 Hz提高到72.609 Hz,远离55 Hz的激励源,可以安全、有效地工作。The fracture pump will vibrate remarkably in the operating process due to the complex combined loads.It is necessary to study the dynamic performance of its whole structure so as to ensure its safety and operating efficiency.Therefore,the Solidworks Simulation analysis software was applied to establish the assembly model of the overall unit of a certain Model 2500 five-cylinder fracture pump and the finite modal analysis was conducted.The analysis shows that there exists the resonance danger with the pump in the designed maximum strokes.According to the modal analysis and vibration mode analysis,the pull rod of the pump was structurally optimized.The findings show that the optimized pull rod can effectively improve the natural frequency of the complete machine.The natural frequency near the first three orders of excitation source was improved remarkably.The minimum frequency of the pump was raised from 59.659 Hz to 72.609 Hz,which is far away from the excitation source of 55 Hz.As a result the whole machine can work in a safe and effective way.

关 键 词：压裂泵 SOLIDWORKS Simulation 模态分析 结构优化 固有频率 

分 类 号：TE934[石油与天然气工程—石油机械设备]