水下管线的涡激振动强度估算
Estimation of Vortex Driving Vibration Strength for Underwater Pipeline
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- DOI:
- 作者:
- 唐友刚, 张洪奇
Tang Yougang, Zhang Hongqi
- 作者单位:
- 天津大学 300072 天津市七里台
- 关键词:
- 水下管道;涡流;振动;强度;估算
- 摘要:
- 穿越悬空管线多采用打桩加固,从而形成多跨连续梁。这种结构在涡流作用下的动强度,目前尚未见准确实用的计算方法。本文提出了一种可用于估算这种结构动强度的近似方法,经实例验证,该方法满足实际要求。
When pipeline which sespends in water crosses the river,poles or columns,in most cases,are used to fix the pipeline,In these cases,those poles with the pipeline form a structure of multispan continaous beam.However,the problem of dynamic sterength of the structure under the vortex ac- tion are not yet solved within or beyoud China.Therefore this paper presents an approximate method to estimate the dynamic strength of the structure.After calculating of practical project,it has been proved that this method satisfys the requests of project designer.1993,2(2): 4-7 收稿日期：1992-5-9参考文献：
1. M·Het‘en yi.Beams on dastic foundation.The univer-sity of Michigan Press,1955’.
2. R.D.B,T.E.Burton.Fluidinduced by Vortexhedding.Journal of fluids engineering,Mar,1976.