Reliability Analysis for Plunger Pump Fluid End Based on Random Finite Element Method

Abstract:

In order to confirm the structure strength reliability of the plunger pump fluid end, the 3-D parametric finite element model is built according to its structure characteristic, the finite element analysis is carried through the finite element analysis software, and the reliability analysis is carried by ANSYS/PDS. The analysis result shows that 500 times sampling simulation suffices the need of precision. The result of sensitivity analysis is shown that the main influencing factor is material yield limit of plunger pump for the reliability, the second is the internal pressure of fluid end, and the elastic modulus and Poisson ratio have less effect for the reliability. The reliability of fluid end is 95.6% when the material yield limit of plunger pump is normal distribution. The reliability of fluid end is up to 100% when the material yield limit is constant, so the material yield limit is ensured not change when the fluid end is designed and manufactured.

• Periodical: Advanced Materials Research (Volumes 479-481)
• Pages: 1573-1577
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.479-481.1573
• Online since: February 2012
• Authors: Tian Cheng Huang, Si Zhu Zhou, Xin Mei Yuan
• Keywords: Fluid End, Monte-Carlo, Plunger Pump, Reliability Analysis, Sensitivity

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