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Structural Analysis and Design Optimization of High Pressure Vessel Components

This study presents a finite element (FE) analysis of high-pressure vessel components, focusing on the case body and multiplier parts. It includes a general view and vertical cross-section of the vessel, detailing the contact interaction zones under internal pressure. Utilizing a submodeling approach, 3D linear static analysis evaluates equivalent stress and design optimization by assessing six geometric variables to meet safety constraints. Experimental research further validates strain fields on the inner surfaces of key components, including new designs for hard-alloy inserts under external pressure.

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Structural Analysis and Design Optimization of High Pressure Vessel Components

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  1. FE structural analysis and design optimization of high pressure vessel case body and multiplier parts. General view of high-pressure vessel. Vertical cross section Upper half-body Lock Multiplier Lower half-body By-pass conduit Inlet conduit

  2. FE model of case body parts Contact interaction zones

  3. Case body. Equivalent stress for analysis of 3D contact interaction of case body parts under internal pressure

  4. Structural analysis for technological conduit zones. Submodeling method

  5. 3D linear static analysis. Equivalent stress Inlet conduit By-pass conduit

  6. Lower part of the half-body. Submodeling method

  7. Lower part of the half-body. 3D FE model

  8. 3D linear static analysis. Equivalent stress

  9. Design optimization of case body parts Design variables: Six geometric variables of the case body parts Constrains: max < 0.2/ksafety Objective function: Metal-intensity

  10. Initial and final designs. Equivalent stress

  11. Basic results of design optimization

  12. Experimental research of strain fields. 12strain gaugeson the inner surface of the lock

  13. Gages measuring

  14. 3D solid model of multiplier Membrane Punch hard-alloy insert CapsuleGraphite

  15. Multiplier elements

  16. Membrane

  17. FE model of multiplier

  18. Equivalent stress for analysis of 3D contact interaction of punch and hard-alloy insert under external pressure

  19. New design of hard-alloy insert. Analysis of utilization possibility

  20. Equivalent stress for analysis of 3D contact interaction of punch and hard-alloy insert under external pressure. New design of hard-alloy insert

  21. Membrane. Equivalent stress

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