damper loss meaning in English

节流损失
阻尼器损耗

At the same time , using remington ' s wheel - rail interaction model , calculate the interaction force between the wheel and rail and the input power of each subsystem . evaluate the mode count , damping loss factor and coupling loss factor . according the fundamental of the acoustics , predict the wheel - rail noise
同时利用remington建立的轮轨接触模型，由轮轨间的表面粗糙度谱计算出了轮轨间的接触力，并将其作为产生轮轨振动的激励力得到了各子系统的输入功率。
The results show that the wayside noise increases 8db - 12db , if the train ' s velocity increase two times ; and increases 3 db , if the number of axles increase tow times ; and decreases 3db , if the distance far away from the track increase tow times damping loss factor increases , the wayside noise decreases ; coupling loss factor increase , the wayside noise increase
预测结果表明：列车通过时，在其他条件不变的情况下，列车速度增加一倍，轮轨辐射噪声大约增加8db 12db ；列车轴数增加一倍，轮轨辐射噪声大约增加3db ；预测点距轨道距离增加一倍，轮轨辐射噪声大约降低3db 。