Computational Science Technical Note CSTN-245

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Coupled Oscillators for Earthquake Simulation and Visualisation

S. A. Innes and K. A. Hawick

Archived: 2013

Abstract

Earthquake prediction is an increasingly important area for applied simulation, as conventional analytic models are usually unable to cope with realistically large and complex scenarios. The underlying basis for earthquake simulations are sets of coupled oscillators, where the geometry can be appropriately controlled and various shocks applied and the resulting quakes or oscillations studied. Simulating a large system allows many more realistic modes and multi scale quake phenomena to be investigated. We report on various approaches to simulating earthquakes and the effect on structures based on high order accurate time integration of equations of motion for coupled oscilalltor systems. We describe the computational framework, how the model can be time integrated and also visualised. Large scale and fast computational resources allow semi interactive simulations that can be computationally steered - with interactive parameters and a visualisation and rendering feedback system. We also discuss how massively parallel techniques such as the use of Graphical Processing Units can accelerate earthquake simulation to the point of near realistic time and length scales.

Keywords: coupled oscillators; earthquakes; springs; time integration; structural distortion; structural visualization

Full Document Text: Not yet available.

Citation Information: BiBTeX database for CSTN Notes.

BiBTeX reference:

@TECHREPORT{CSTN-245,
        author = {S. A. Innes and K. A. Hawick},
        title = {Coupled Oscillators for Earthquake Simulation and Visualisation},
        institution = {Computer Science, Massey University, Auckland, New Zealand},
        year = {2013},
        keywords = {coupled oscillators; earthquakes; springs; time integration; structural
                distortion; structural visualization},
        owner = {kahawick},
        timestamp = {2013.09.06}
}


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