压力容器2024，Vol.41Issue(11)：1-11,32,12.DOI:10.3969/j.issn.1001-4837.2024.11.001
并排小间距比塔式容器的流致振动试验研究
Research on flow-induced vibration tests of parallel tower vessels with small spacing ratios
摘要
Abstract
With the increasing demand for efficiency in chemical production,the application of clustered tower vessels has become more widespread.However,flow-induced vibrations often lead to structural failures.In this study,parallel tower vessels with small spacing ratios were simplified into tandem multi-cylinder systems.The coupled vibrations and mechanisms of multiple towers under small spacing ratios(L/D=1.3,1.5,1.8)and reduced velocities Ur=2.5～40 were analyzed.Additionally,the relationship between wind speed and vibration energy distribution under small spacing ratios was investigated.The results show that when the spacing ratios are L/D=1.3 and 1.5,the parallel towers exhibit wake-induced vibration,and the vibration of upstream towers is amplified by the presence of downstream towers.When the spacing ratio is L/D=1.8,two tandem towers demonstrate single-peak convergent vortex-induced vibration,while in three tandem towers,the upstream and midstream towers exhibit double-peak convergent vortex-induced vibration,with suppressed vibration in the downstream tower.Furthermore,the vibration frequency of parallel towers is independent of the spacing ratio,and the vibration energy distribution under small spacing ratios remains unstable.This study provides a theoretical foundation for the safe design of parallel tower vessels with small spacing ratios.关键词
并排塔器/流致振动/振动特性/小间距比/串列多圆柱Key words
parallel tower/flow-induced vibration/vibration characteristics/small spacing ratio/tandem multi-cylinders分类
机械制造引用本文复制引用
郭凯,郭志文,董温哲,程雨轩,于美琪,张红升..并排小间距比塔式容器的流致振动试验研究[J].压力容器,2024,41(11):1-11,32,12.基金项目
2022年度河北省高等学校科学研究项目(QN2022144) （QN2022144）
