动力机器框架基础的振动检测分析与数值验证  

Vibration Analysis and Numerical Validation of a Frame Foundation in a Power Plant

作　　者：朱彤[1] 陈春雷[2] 

机构地区：[1]大连理工大学建设工程学部工程抗震研究所,大连116024 [2]铁道部第二勘察设计研究院贵阳分院,贵阳550002

出　　处：《结构工程师》2010年第1期103-107,共5页Structural Engineers

摘　　要：辽阳某公司热电厂5带气轮发电机组在负荷为60％-70％的情况下出现局部剧烈振动导致汽轮机叶片断裂，针对这一振动情况进行现场的振动检测与原因分析，并用有限元方法对该工程振动问题进行了数值模拟分析，对比现场振动检测与数值分析的结果，验证了现场振动检测及其原因分析的正确性。经采取对应措施处理后机组能满负荷正常运行，说明了振动检测分析与数值验证的合理性。With a 60% to 70% load, the No. 5 steam turbo generator unit of Liaoyang thermal power station vibrates intensely which leads its blades crack. A vibration test followed with a seek of the causes was carried out immediately. At the same time a numerical simulation analysis with the finite element method was conducted. Then the method of vibration test at the scene is demonstrated effective by a correspondence between results of the two ways above, Moreover, the fact that the unit runs smoothly with a full load after adoption of proper measure verifies the correctness of vibration analysis and numerical validation.

关 键 词：振动检测 振动分析 有限元 框架式基础 数值分析 

分 类 号：TU476.1[建筑科学—结构工程]