定义 中文名称: 有限振幅 英文名称: finite amplitude 定义: 波振幅较大,不能再看作水平流场上小扰动的情况时的振幅。在波的振幅较小时,可以把波动看成叠加在平均波上的小扰动。 应用学科: 大气科学(一级学科)
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有限振幅的超声波在固体中传播时会发生波形畸变,伴随着高次谐波的出现。
Wave distortion will occur when finite amplitude ultrasonic waves propagate in elastic solids, resulting in the production of higher order harmonics.
本文采用理论分析和符号运算相结合的方法研究有限深分层流体有限振幅内孤立波。
The finite amplitude solitary waves in stratified fluids of finite depth, in which the density varies with depth in lower layer but keeps uniform in upper layer, are investigated.
在液氮及水中进行了有限振幅声波的实验,观察到了次谐波分岔现象,得出了分岔谱。
The phenomenon of subharmonic bifurcation is observed in experiments of sound wave of finite amplitude, which are performed in liquid nitrogen and water, respectively. The power spectrum is obtained.
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