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潮流能水轮机转子系统扭转振动特性研究

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Indexed by:期刊论文

Date of Publication:2016-11-28

Journal:太阳能学报

Included Journals:EI、PKU、ISTIC、CSCD、Scopus

Volume:37

Issue:11

Page Number:2922-2928

ISSN No.:0254-0096

Key Words:竖轴水轮机;潮流能;转子系统;扭转振动

Abstract:提出一种变臂长潮流能水轮机,采用有限元法推导水轮机转子系统的扭转振动微分方程,运用流管法建立流体激励模型,利用Newmark逐步积分法求解水轮机转子系统扭转振动动力学响应.最后,搭建水轮机振动实验台,测试其振动特性.结果表明,数轴水轮机扭转振动复杂,存在多种倍频震动成分;与等臂长水轮机相比,变比长水轮机有效扭矩增加,扭转振动倍频振动成分更多;实验测试从定性角度验证数值仿真结果.

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