Finite Element Analysis Design of a Split Rotor Bracket for a Bulb Turbine Generator

被引：3

作者：

Luo, Yongyao ^{[1
]}

Wang, Zhengwei ^{[1
]}

Chen, Liangnian ^{[2
]}

Wu, Jinshui ^{[2
]}

机构：

[1] Tsinghua Univ, Dept Thermal Engn, State Key Lab Hydrosci & Engn, Beijing 100084, Peoples R China

[2] Toshiba Hydro Power Hangzhou Co Ltd, Hangzhou 310016, Zhejiang, Peoples R China

来源：

ADVANCES IN MECHANICAL ENGINEERING | 2013年

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1155/2013/428416

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The rotor bracket is a key component of the generator rotor with cracks in the rotor bracket leading to rubbing between the rotor and stator, which threatens safe operation of the unit. The rotor rim is so complicated that the equivalent radial stiffness of rim was determined by numerical simulation other than engineering experience. A comprehensive numerical method including finite element analyses and the contact method for multibody dynamics has been used to design the split rotor bracket. The computational results showed that cracks would occur in the initial design of the bracket when the turbine operated at the runaway speed, and the bracket design should be improved. The improved design of the bracket was strong enough to avoid cracks and rub between the rotor and stator. This design experience will help improve the design of split rotor brackets for bulb turbine generators.

引用

页数：8

共 10 条

[1]

[Anonymous], 1999, ENG STRENGTH THEORY

[2]

Chen T. Y., 2003, FUJIAN HYDROPOWER, V1, P25

[3]

Goodman J., 1899, MECH APPL ENG

[4] Optimization of location and size of opening in a pressure vessel cylinder using ANSYS [J].

Hyder, M. Javed ;

Asif, M. .

ENGINEERING FAILURE ANALYSIS, 2008, 15 (1-2) :1-19

[5]

Li Z G, 2012, APPL MECH MAT, V148-149, P1058

[6] Elimination of upper bracket resonance in extremely high head Francis hydro-generators [J].

Luo, Yongyao ;

Wang, Zhengwei ;

Chen, Guodong ;

Lin, Zujian .

ENGINEERING FAILURE ANALYSIS, 2009, 16 (01) :119-127

[7] Strength analysis of a large centrifugal dredge pump case [J].

Peng Guangjie ;

Wang Zhengwei ;

Yan Zongguo ;

Liu Ruixiang .

ENGINEERING FAILURE ANALYSIS, 2009, 16 (01) :321-328

[8] Probabilistic finite element analysis using ANSYS [J].

Reh, S ;

Beley, JD ;

Mukherjee, S ;

Khor, EH .

STRUCTURAL SAFETY, 2006, 28 (1-2) :17-43

[9]

Shen W. L., 2005, MODERN MANUFACTURING, V12, P54

[10]

Wen J. M., 2007, MECH ENG, V3, P61

← 1 →