CAJ | 학술논문

为了评估折流板结构尺寸对热交换器振动的影响，在分析各种振动机理的基础上，以海洋石油平台代表性热交换器实例为研究对象，利用 FORTRAN 语言编制计算程序，对不同折流板结构尺寸对热交换器振动的影响进行理论研究。研究结果表明，减小折流板间距对防止流体弹性不稳定振动、湍流抖振、漩涡脱落和声振均非常有效；减小折流板切割率对流体弹性不稳定振动影响不大，但对防止湍流抖振、漩涡脱落和声振较为有效。针对不同振动问题，调整折流板间距或切割率非常有效。
위료평고절류판결구척촌대열교환기진동적영향，재분석각충진동궤리적기출상，이해양석유평태대표성열교환기실례위연구대상，이용 FORTRAN 어언편제계산정서，대불동절류판결구척촌대열교환기진동적영향진행이론연구。연구결과표명，감소절류판간거대방지류체탄성불은정진동、단류두진、선와탈락화성진균비상유효；감소절류판절할솔대류체탄성불은정진동영향불대，단대방지단류두진、선와탈락화성진교위유효。침대불동진동문제，조정절류판간거혹절할솔비상유효。
In order to evaluate heat exchanger vibration impact affected by baffle structure,u-sing a typical example of heat exchanger as research object,by FORTRAN program language,to analyze all kinds of vibration mechanism of different baffle structure size.Research results show that,reducing baffle spacing is very effective to prevent fluid elastic instability,turbulence buffe-ting vibration,vortex shedding and resonance vibration.Changing baffle cutting rate have little effect of fluid elastic instability vibration,but very effective to prevent turbulence buffeting,vor-tex shedding and resonance vibration.Therefore,according to the different vibration problems, adjust the baffle spacing or cutting rate is very effective.