Guided Wave Propagation Simulation by ANSYS
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1. The document describes using ANSYS to simulate guided wave propagation in pipes. 2. Key steps in the ANSYS simulation include defining the element type, material properties, geometry, meshing, applying boundary conditions like supports, and inputting a loading signal to excite the guided waves. 3. The simulation can then analyze wave propagation over time and visualize the results to study features like welded supports, bends, and corrosion affecting guided wave modes like the L(0,1) and T(0,1) modes.
Guided Wave Propagation Simulation by ANSYS
- 1. Guided Wave Propagation simulated by ANSYS Lee Ping Hung Taiwan 2016.11
- 2. Step by Step
- 3. Step by Step 2.5m 260 mm A B C 4 m End A : excitation 1 m Support Bracket End B 100 mm Model Loading Post 1Post 26 Predict the reflected signal Visualize wave propagation
- 4. Element
- 5. Material
- 6. Geometry
- 8. Coordinate System Transfer 1. Change CS of WorkPlane to Cylindrical 2. Transfer the CS of all nodes from Cartesian to Cylindrical
- 9. Loading Signal by Matlab or EXCEL
- 10. Copy Loading Signal Copy DATA: H Copy DATA: t
- 11. Loading Signal in txt format Past it to Note, then create an txt file
- 12. Array Parameter Table for loading signal Create the Array Parameter Table (167×1) 1. 2. 3.
- 13. 4. 5. 6. Using the ‘txt file’ for Loading Signal
- 15. Setup the (ITS) Time for analysis dt< 0.8×(Le/Velocity)
- 16. Apply the loading signal on the nodes
- 17. Axis-symmetric Loading for L or T modes T(0,1)
- 18. Solve • If you need more steps than1000, you have to input below instruction before you solve • finish /config,nres,5000 /SOLU SAVE /STATUS,SOLU SOLVE
- 19. POST 1: see wave propagation
- 20. POST 26: collect the time domain signal for the parameter you select
- 21. POST 26
- 22. Guided Wave with different features on pipes 檢測盲區 General Corrosion Pipe Support Elbow Coating
- 23. L modes and T(0,1) mode L(0,1) and L(0,2) mode T(0,1) mode
- 24. T(0,1) V.S L-Welded Support
- 25. T(0,1) V.S C-Welded Support
- 26. T(0,1) V.S Angle Bend
- 27. T(0,1) V.S General Corrosion