under each water level, the foundation radiation damping brings overall reduction of the dam body's earthquake responses, while having no noticeable effect on the response patterns.
对所有水位,地基辐射阻尼都带来坝体地震响应的全面降低,但不影响反应的总体规律。
the results demonstrate that significant influence of the radiation damping on the structural response is verified.
又研究了辐射阻尼的不同影响因素,如水位、地基弹性模量和不同地震输入等。
the radiation damping of liquid storage tanks resting on elastic base under horizontal ground excitation is studied.
本文研究储液罐在地面水平振动时的辐射阻尼。
a viscoelastic artificial boundary was constructed to simulate radiation damping in a semi-infinite medium and the elasticity recovery capacity of the medium at the far field.
in the simulation model, the viscoelastic boundary was employed to absorb outward-spreading scattering waves; therefore, the influence of infinite foundation radiation damping was taken into account.
在这一「仿真模型」中,黏弹性边界被用来吸收外传的散射波,因此,计入了无限地基辐射阻尼的影响。
the methods for treatment of earthquake input and modeling of radiation damping in infinite foundation were established based on cylindrical wave equation.
其中,地震波的输入方法以及无限地基辐射阻尼的模拟方法都是在柱面波动方程的基础上建立起来的。
artificial damping boundary is adopted in seismic model test of arch dam on shaking table to simulate the radiation damping effect due to energy dissipation in infinitive foundation.
the method can simulate not only the radiation damping of semi-infinite soil, but also the elasticity recovery capacity of the far field media on the boundary.
该方法不但可以较好地模拟半无限地基的辐射阻尼,也能模拟远场地球介质的弹性恢复性能。
the analysis method proposed can take into consideration of the effects of water surface gravity wave, water compressibility, and radiation damping at up-stream of reservoir.