The effects of the interlayer materials and geometrical parameters used on the vibration reduction coefficient are studied. 适当增加夹层的厚度可改善组合结构抑振性能;
The result shows that average absorption coefficient and noise reduction coefficient separately equal to 0.58 and 0.60, and fine property of sound absorption at middle-low frequency. 结果表明材料的平均吸声系数和降噪系数分别达0.
Through the reduction of values,the FEM computation will not converge when the model reaches instability state,and the safety factor is just the reduction coefficient at this state. 通过强度折减,当滑坡达到不稳定状态时,有限元计算不再收敛,此时的折减系数就是滑坡的安全稳定性系数。