Mathematical Problems in Engineering / 2018 / Article / Tab 1

Research Article

Viscoelastic Boundary Conditions for Multiple Excitation Sources in the Time Domain

Table 1

Parameters of the subway station and surrounding soil.

BoundaryLeftRightFrontBackBottom

Input in the x directionStress termz+z-x+x+x+
Velocity and displacement termx+x+--x+
Input in the y directionStress termz+z---y+
Velocity and displacement termy+y+--y+
Input in the z directionStress termx-x+y-y+z-
Velocity and displacement termz-z-z-z-z-

The letter “x+” in the table means that the corresponding term is in the positive x direction and other letters follow the same rule. The minus signs “-” means that there are no corresponding terms for these boundaries. Stress, velocity, and displacement terms are the third, second, and first term in (26), respectively.

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