OIL & GAS TECHNOLOGIES



Finite Element Analysis (FEA)

Advanced Design and Simulation

Freudenberg Oil & Gas Technologies utilizes the advantages of FEA to support the design process for all FO&GT components and structures. It is used in driving and supporting new product development, together with the redesign of existing, well established product lines.

FEA is an engineering methodology used for understanding the performance of a component and/or product when subjected to a set of boundary or loading conditions. This analysis can be undertaken virtually, thereby negating the need to initially produce a physical prototype. FEA allows component design to be changed, to improve for example, its resistance to plastic deformation and failure due to fatigue. The geometry and material specification can be optimised, giving the client the desired performance characteristics and operational performance envelope required.

FEA can be used as a very accurate and cost effective tool to support factory qualification procedures. FO&GT is also able to provide computational fluid dynamic (CFD) services upon request.


  • FEA services from initial design, right through to reporting and sign-off

    • In-house analysis software – Vector Analysis
    • Linear and Non-Linear FEA
    • Static, Dynamic and Explicit FEA
    • Coupled structural thermal analysis
    • ASME VIII Division 1 – ‘Design-by-Rule’
    • ASME VIII Division 2 – ‘Design-by-Analysis’
    • ASME VIII Division 3 – 'High Pressure Connectors'
    • Optimisation Studies
    • Fatigue Analysis

    All FEA needs to have suitable verification. FOGT utilise a variety of verification tools from simple hand calculations to (in extreme cases) alternative FEA analysis using other established software packages.

    Following industry leading products are used for our analysis needs :  
    Vector Analysis, FEMAP, Simulia, Abaqus, Ansys, Solidworks

  • Vector Duoseal ™

    The analysis is undertaken using fully non-linear elasto-plastic material data within a multibody dynamic implicit contact analysis. The analysis considers 4 separate stages for the final solution.

    • Stage 1: Load controlled preload applied to the leadscrew(s) of 787,730 lbf, together with axial thrust due to pipeline equipment operations of 38,532 psi. This preload is then fixed for the remainder of the simulation.
    • Stage 2: All internal wetted surfaces of the system pressurized to 3,379 psi and further axial thrust of 20,013 psi as a result of internal pressure.
    • Stage 3: Temperature variation across selected components (from -10 deg C to +60 deg C) equivalent to the flow of oil/gas through the pipeline (thermal expansion data taken from ASME II Part D).
    • Stage 4: A global bending moment is applied to the end of the pipeline, now securely clamped up, of 4.13x106 lb.ft.
  • Vector Techlok ®

    The analysis is undertaken using fully non-linear elasto-plastic material data within a multibody transient contact analysis. The analysis considers 4 separate stages for the final solution.

    • Stage 1: Load controlled bolt preload is applied to make up the clamp assembly. The length of bolt is then fixed for the following steps.
    • Stage 2: Pressure is applied on all of the internal wetted surfaces and maintained for subsequent steps.
    • Stage 3: The top TechLok clamp is heated by a flame burner for 1,800 seconds. The flame temperature reaches 1,093’C within 120 seconds and gradually increases to 1,187’C at 1,800 seconds.
    • Stage 4: The clamp is subjected to a global bending load whilst the flame is still heating the clamp. The bending moment increases from 0 to 39,054Nm at regular intervals for 900 seconds.  

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