Journal of Failure Analysis and Prevention

, Volume 19, Issue 2, pp 561–569 | Cite as

Buckling Failure Analysis of Hydraulic Cylinder Rod on the Flap Institutions for Power Catwalk

  • Qiaolei SunEmail author
  • Zheng Chen
  • Liangliang Ding
  • Ding Feng
  • Zhe Wang
  • Yiliu Tu
Technical Article---Peer-Reviewed


This paper analyzes the mechanical characteristics of the hydraulic cylinder rod and the causes of buckling failure. The structural buckling failure often happens to the hydraulic cylinder rod on the flap institutions during the power catwalk operation. The calculation formula of the buckling critical force of the hydraulic cylinder rod is derived by applying the modified boundary conditions. The formula of moment of inertia of different cross sections is deduced, and the calculation formula of the critical force of the hydraulic cylinder rod with defects is obtained by doing research on the rod with the cylindrical defects. Experiments on buckling of hydraulic cylinder rod were conducted on the basis of the simplified test specimen, and the buckling numerical simulation of rod was carried out by using the finite element software Workbench. Through the numerical simulation, we analyze how the radius, depth, and position of the defect to impact the buckling load. The experimental and simulation results show that the formula is accurate when calculating the buckling load of the defect-free hydraulic cylinder rod, and the variation of the buckling load with the cylinder defect parameters was also analyzed.


Hydraulic cylinder rod Cylindrical defect Buckling load Experimental study Numerical simulation 



This work was supported by the National Science and Technology Major Project of China under Grant No. 2016ZX05038-002-LH001, the National Natural Science Foundation of China under Grant Nos. 51275057 and 51704034. We would also like to thank SJ Petroleum Machinery Co. of SINOPEC, who is the industrial sponsor to support the project and the relevant experiments.


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Copyright information

© ASM International 2019

Authors and Affiliations

  1. 1.School of Mechanical EngineeringYangtze UniversityJingzhouChina
  2. 2.Hubei Engineering Research Center for Oil & Gas Drilling and Completion ToolsJingzhouChina
  3. 3.Hubei Cooperative Innovation Center of Unconventional Oil and GasWuhanChina

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