Title:
METHOD FOR MEASURING SHAFTING MECHANICAL FATIGUE OF TURBINE GENERATOR SET.
Document Type and Number:
WIPO Patent Application WO/2009/074011
Kind Code:
A1
Abstract:
A method for measuring a shafting mechanical fatigue of a turbine generator set,
which involves determining a lumped mass model of a turbine generator set and
its parameters; calculating a model frequency and a mode shape of the turbine
generator set; acquiring an angular velocity change at a machine end; calculating
a torque at a calculating section of shafting based on the model frequency, a mode
shape curve and an equivalent rigidity of the lumped mass model, so as to obtain
a torque-time history curve at the calculating section of the shafting; calculating
a fatigue damage accumulative value for a dangerous section of a set shafting
under a certain malfunction or disturbance, that is, the shafting mechanical
fatigue of the turbine generator set.
Inventors:
LIANG XINYAN (CN)
JIAO SHAOHUA (CN)
LI YUANSHENG (CN)
ZHANG TAO (CN)
LIU QUAN (CN)
JIAO SHAOHUA (CN)
LI YUANSHENG (CN)
ZHANG TAO (CN)
LIU QUAN (CN)
Application Number:
PCT/CN2008/001940
Publication Date:
June 18, 2009
Filing Date:
November 28, 2008
Export Citation:
Assignee:
SIFANG ELECTRIC GROUP CO LTD (CN)
BEIJING SIFANGBONENG AUTOMATIO (CN)
LIANG XINYAN (CN)
JIAO SHAOHUA (CN)
LI YUANSHENG (CN)
ZHANG TAO (CN)
LIU QUAN (CN)
BEIJING SIFANGBONENG AUTOMATIO (CN)
LIANG XINYAN (CN)
JIAO SHAOHUA (CN)
LI YUANSHENG (CN)
ZHANG TAO (CN)
LIU QUAN (CN)
International Classes:
G01M15/00; G01H1/10
Foreign References:
| US4862749A | 1989-09-05 | |||
| CN1093171A | 1994-10-05 | |||
| JP2005098258A | 2005-04-14 | |||
| JPS54118288A | 1979-09-13 | |||
| JPS5681435A | 1981-07-03 | |||
| JPS56117129A | 1981-09-14 | |||
| JPS58146832A | 1983-09-01 |
Attorney, Agent or Firm:
BEIJING HUAJIN PATENT FIRM (Suite 2312 The Spaces International Center,No. 8 Dongdaqiao Road,Chaoyang District, Beijing 0, CN)
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