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| Probabilistic analyse of pump shaft based on ANSYS/PDS |
| SHI Wei-dong, YAN Pin-lan, JIANG Xiao-ping, SUN Xiang-chun, LI Qi-feng |
| Technical and Research Center of Fluid Machinery Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China |
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Abstract The geometric dimensions,load,stress and fatigue limit are taken as random variables to establish the pump shaft model.The 3D solid model is established by Pro/E software and imported into ANSYS to make the static stress analysis.The probability analysis files are created and the reliability of pump shaft with PDS module is calculated by Monte Carlo simulation technique.The method can obtain higher precision of failure probability of the pump shaft than the traditional design.A reliability assessment for the DLY25—270/9—37 to the model of vertical multi-stage pump shaft is demonstrated as a numerical example.The reliability of the pump shaft is 99.87% in the confidence level of 95%.It shows that the method is feasible and has important application values.
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Received: 08 August 2013
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| [1] 沈永娟,施卫东,张德胜.ANSYS二次开发在泵轴强度计算中的应用[J].排灌机械,2007,25(4):18-21[2] 蒋德平,刘有平.可靠性理论在GZB-1300型灌注泵泵轴中的运用[J].石油工业技术监督,1998,14(7):58-59[3] 熊珍兵,罗会信.基于HyperMesh的有限元前处理技术[J].排灌机械,2006,24(3):35-38[4] 叶勇,郝艳华,张昌汉.基于ANSYS的结构可靠性分析[J].机械工程与自动化,2004,127(6):63-65[5] 博弈创作室.ANSYS9.0经典产品高级分析技术与实例详解[M].北京:中国水利水电出版社,2005[6] Wei D,Rahman S.Structural reliability analysis by univariate decomposition and numerical integration[J].Probabilistic Engineering Mechanics,2007(22):27-38[7] Ching J,Beck J L.Real-time reliability estimation for serviceability limit states in structures with uncertain dynamic excitation and incomplete output data[J].Probabilistic Engineering Mechanics,2007(22):50-62[8] Chen Nianzhong,Guedes C.Reliability assessment for ultimate longitudinal strength of ship hulls in composite materials[J].Probabilistic Engineering Mechanics,2007(22):330-342[9] 刘善维.机械零件的可靠性优化设计[M].北京:中国科学技术出版社,1993[10] 王东育.工程机械零件的可靠性优化设计[J].科技情报开发与经济,2005,15(20):274-275 |
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