摘要
以黄河小峡工程为背景,分析了河床式厂房结构的振动特点,并建立三维有限元模型,计算对比了干、湿模型的动力特性及两者的差异,并对差异产生的原因进行了分析.在此基础上,通过对小峡水电站内振源的分析,进行了结构共振校核.研究计算结果为有效地优化河床式水电站厂房结构的动力特性和改进抗振设计提供了数值理论依据.
The paper analyzes the dynamic characteristics of a run-of-river plant with the Xiaoxia Project on the Yellow River as a background. The aim is to create a three-dimensional finite element model to compute and compare the dynamic characteristics and their difference of drying and wetting models, and to discover the reasons thereof. The structural resonance within the Xiaoxia Hydropower Plant was verified based on the analysis of vibration sources. The results researched will provide a theoretical basis for optimizing the dynamic characteristics of the powerhouse structure of run-of-river power plant and improving its resonance design.
出处
《水利水电技术》
CSCD
北大核心
2004年第8期37-40,共4页
Water Resources and Hydropower Engineering
基金
高等学校博士学科点专项科研基金资助项目(20020056032).
关键词
河床式水电站
干模态
湿模态
振源
共振
run-of-river power plant
drying model
wetting model
vibration source
resonance
