Introduction
Background
Features
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PiP: a software for calculating vibration from underground railways
Developed by: Dr. Mohammed Hussein and Dr. Hugh Hunt
5.01 will include a multi-layered ground and will calculate vibration in other directions beside the vertical direction
4.01 released on www Sep 2009
Main Features
- Accounting for a tunnel embedded in a half space rather than a full space
- Modelling the tunnel wall using the elastic continuum (thick shell) theory rather than the thin shell theory
- Using a track model on elastic foundation (an excitation model) to calculate forces at the wheel-rail interface
- Accounting for different spectra of rail roughness beside white noise
3.01 released on www Aug 2006
Features
- Contour plots
- Rigid bedrock
- Printing option
2.01 Released on www May 2006
Features
- Graphical user interface
- History record
- toggle insertion gain / PSD output
- vectorized code dramatically improves running time
1.01 June 1999
Computational tool based on the Pipe in Pipe model developed by James
Forrest and Hugh Hunt.
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