灯泡贯流式水轮机转动部分理论计算及有限元分析

发布时间：2018-03-27 06:06

本文选题：灯泡贯流水轮机　切入点：主轴　出处：《天津大学》2014年硕士论文

【摘要】：环境保护和优先发展清洁能源是21世纪世界各国面临的重大任务。水电作为清洁与可再生能源，具有成本低、规模大、调节性强的优势。与常规水轮机设计相比，灯泡贯流式水轮机具有结构紧凑，重量轻，，电站厂房高度小，工程投资小的特点。转动部分是水轮机能量转化的重要动力部件，其静动态性能是水轮机组效率及安全运行的重要保障。本文结合具体工程项目，综合运用理论计算、有限元分析及优化设计理论，系统研究水轮机组转动部分结构及优化设计方法。主要工作如下： (1)在系统总结灯泡式水轮机组结构特点及总体布置形式基础上，归纳形成了水轮机组设计流程。 (2)采用类比设计方法，完成了主轴及转轮体结构设计。基于额定和飞逸工况下理论计算与有限元分析，提出了主轴及转轮体关键结构参数确定方法。 (3)基于实验设计及优化算法，系统研究了水轮机转轮体及主轴的结构多目标优化设计方法，并形成了优化设计技术流程。
[Abstract]:Environmental protection and priority to develop clean energy are the major tasks facing all countries in the 21st century. As clean and renewable energy, hydropower has the advantages of low cost, large scale and strong adjustment. Bulb tubular turbine has the characteristics of compact structure, light weight, small power plant height and low project investment. Its static and dynamic performance is an important guarantee for the efficiency and safe operation of the turbine unit. The rotation part structure and optimization design method of hydraulic turbine unit are studied systematically. The main work is as follows:. 1) on the basis of summing up the structural characteristics and the general layout of the bulb turbine unit, the design process of the turbine unit is concluded. Based on the theoretical calculation and finite element analysis under rated and flight conditions, a method for determining the key structural parameters of spindle and runner is proposed. 3) based on the experimental design and optimization algorithm, the multi-objective optimization design method of turbine runner and spindle structure is studied systematically, and the technical flow of optimization design is formed.
【学位授予单位】：天津大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TK733.8

【共引文献】