粗糙度谱 meaning in English

roughness spectrum

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。