Abstract
The accuracy of a two-dimensional Rayleigh wave calculation evaluated using the moving particle simulation (MPS) method was investigated. MPS is a mesh-free particle method well suited to the analysis of nonlinear physical phenomena such as demolition and the breaking of waves. The objective of this analysis was to confirm the free boundary condition set in MPS, which has not been thoroughly validated before. Numerical experiments showed that when particles are distributed uniformly, the phase velocity of the Rayleigh waves are in good agreement with the analytical values. Furthermore, when the particles are slightly misaligned (displaced by about 10% from a regular arrangement), the results remain very accurate (the error ratio of the phase velocity is within ±1%). A linear case was analyzed in this work; however, the findings are easily extendable to nonlinear problems.
