单跨和多跨水下悬空管线在水流作用下发生涡激振动。
Vortex-excited vibration induced by fluid takes place on the underwater suspended pipelines.
对系统中各种分析方法的核心算法“一定区域范围内单条管线的网络追踪”进行了设计和程序实现，实现了各种分析功能的底层方法库。
The kernel method "the network trace of single pipeline in delimited region" is designed and implemented, offering a radical functions library of manifold analysis methods.
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