河床式水电站厂房结构动力特性研究
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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.
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.
引文
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[5] 郭永刚,张祈汉.三峡水电站厂房结构自振特性研究[J].水力发电,2002,(1).
[2] 舒扬,王日宣.水电站厂房动力分析[M].北京:水利水电出版社,1987.
[3] 董毓新,李彦硕.水电站建筑物结构分析[M].大连:大连理工大学出版社,1995.
[4] 王日宣.并联体系结构自振特性与地震荷载研究[A].水电站与水工建筑物振动和抗振理论论文集[C].天津:天津大学出版社,1991.
[5] 郭永刚,张祈汉.三峡水电站厂房结构自振特性研究[J].水力发电,2002,(1).
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