结合实例对9E型燃机基础的动扰力和动力特性的探讨  

Study on Imbalance Force and Dynamical Property of GE9E Gas-turbine Set Foundation with Example

作　　者：黄小玲[1] 沈涛[1] 朱祝兵[2] 代泽兵[2] 

机构地区：[1]江苏省电力设计院,南京211102 [2]中国电力科学研究院,北京102401

出　　处：《特种结构》2012年第6期68-73,103,共7页Special Structures

摘　　要：国内已有相当数量的GE9E型燃机机组投产,但其配套基础的动力性能研究成果少见,且国内现行的动力基础设计规范不完全适用于该类型基础形式。针对上述问题,以某9E型燃机电厂配套基础设计为背景,对该型基础动力分析的规范依据、动扰力取值以及振动位移评价标准进行讨论,认为应以厂家相关规范为依据,结合国际通用规范为对照;应用有限元软件ANSYS,分别依据上述规范建立相应的三维有限元实体模型进行模态、强迫振动分析,得出一些有益的结论可供同类工程参考。There are many GE9E gas-turbine sets which have gone into production, but the dynamical prop- erty research on the foundation of these type sets is still scarcity. Besides, the domestic criterion for machine foun- dation is inapplicability for that type foundation. Based on the above problem, a research is done to analyze the criterion gist for calculation 、 the imbalance force ,evaluation criterion for vibrancy according to the foundation dsign of one GEPE gas-turbine. The conclusion show that the document for designing foundation is primary, the international working standard should be further compared. At last, a 3D-dimensional model which includes a- bore factors is made to analyze the dynamic properties of GEgE gas-turbine set foundation and some conclusions which can be used for the same type foundation are presented.

关 键 词：9E型燃机 动力基础 强迫振动 

分 类 号：TU476[建筑科学—结构工程]