瞬态振动是指由外加瞬态激励引起的振动。瞬态过程是一种包罗万象的非周期确定性过程,其基本特征为持续时间较短的突发性过程,例如，飞机着陆，火炮发射，爆炸,地震,碰撞和冲击等都会激发瞬态振动。经常通过傅里叶变换,将时域上的瞬态振动转换成频域上的频谱来研究和分析瞬态振动的特性。
... transient methods 瞬变场法 transient oscillation 瞬态振动 transient period 非稳定活动期 ...
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In the paper, the nondestructive detection technique, which contains analyzing and processing the signal of transient vibration on road surface, is discussed.
讨论了路面瞬态振动信号分析处理技术。
参考来源 - 公路工程瞬态激振无损检测技术·2,447,543篇论文数据，部分数据来源于NoteExpress
瞬态振动对系统的影响是不可忽略的。
The influence of the transient vibration on the system is not obviously neglectable.
从而实现机组三维转速谱阵图瞬态振动特征的自动提取和故障识别与诊断。
Therefore, the automatic extraction of features of waterfall diagrams, and the identification and diagnosis of fault are realized.
根据瞬态振动理论和重复冲击下响应迭加效应，计算单自由度包装件的响应加速度及其最大值。
The response acceleration and its maximum of a package with SDOF have been calculated according to the transient oscillation theory and response reiterative effects under impetus of repetitive shocks.
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