| 摘要: |
| 为了满足海上大型风电场的开发需求，有必要建立系统的海上电气平台设计和安全评价体系，其有效性需要通过海上电气平台整体结构动力模型试验进行验证。联合考虑弹性相似律和弗劳德数(Froude)相似得到水弹性相似律，以水弹性相似律为基础得到电气平台各参数之间的相似关系，完成海上电气平台整体结构试验模型的设计。在海上电气平台动力模型试验中引入水弹性相似律保证了结构原型与模型间的动力特性以及水环境的相似关系；并通过引入牛顿相似律对冰荷载进行了相似转换。采用海洋平台分析软件SACS分别建立海上电气平台原型和模型的有限元数值模型，开展原型和模型结构响应分析和动力特性分析，同时依据数值分析结果对水弹性相似律进行了验证。 |
| 关键词: 海上电气平台 水弹性相似律 弹性相似律 弗劳德数相似 牛顿相似律 动力模型试验 |
| DOI： |
| 分类号:P752；U656.6 |
| 基金项目:国家高新技术研究发展计划(863计划)资助项目(2012AA051704) |
|
| Design of dynamic model test for offshore substation platform |
|
FU Liang-ming1, ZHONG Yao1, LUO Cheng-xi1, LIU Xiao-song1, SUN Jin-long2, LIU De-cai2
|
|
1.Powerchina Zhongnan Engineering Corporation Limited;2.Datang Shandong Power Generation Co., Ltd.,
|
| Abstract: |
| The design and safety evaluation system of offshore substation platform should be established to satisfy the developing requirement of large-scale offshore wind farm. It’s availability can be verified by model test. Combining the elastic similarity and Froude similarity, the hydro-elastic similarity can be obtained. Based on it, the similar relations among the parameters can be obtained so as to help finishing the design of dynamic model of an offshore substation platform. In the model test, the hydro-elastic similarity is used to ensure the similarity relation of dynamic characteristics and wave loads between prototype and model. Also, the Newton similarity is employed to fulfill the similarity relationship of the ice loads. Using SACS, the finite element models of offshore substation prototype and model are established to analyze the structural responses and dynamic characteristics of them. Compared with the numerical results of prototype and mode test, the hydro-elastic similarity is validated. |
| Key words: offshore substation platform hydroelasticity similarity elastic similarity law Froude similarity Newton similarity law dynamic model test |
