1000MW直接空冷机组排汽管道结构强度分析

来源 :中国电机工程学会火电分会空冷专委会第五届学术年会 | 被引量 : 0次 | 上传用户:AsiaITt
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本文应用大型通用ANSYS有限元分析软件,建立了1000MW机组直接空冷排气管道的有限元模型,对正常运行工况以及各种不同载荷作用下的管道系统(包括排气装置和空冷岛连接部分在内)进行了结构强度分析,即校核其最大应力是否满足强度要求。所完成的计算包括由重力,内压,沉降,风载和地震等不同载荷组合共22种工况,不但得到了所关注点的位移,应力,支反力以及弯矩的变化情况,还根据应力评价标准对各种工况所得到最大应力值进行了校核,得到了最危险的位置。对整体结构进行了模态分析,得到了该结构的最大频率值,为设计提供了参考。
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