Tower is an important fundamental component of large-scale wind turbines. The fatigue performance of
the tower welded part directly affects the running safety and reliability of wind turbines. A fatigue life predicting
method for the longitudinal welding seam of the tower is proposed in this paper. Under the precondition of
satisfying the limit strength, the time series stress of each working condition is obtained by DIN18800-4 section
stress calculation. Combined with the rain-flow counting method and the Miner linear cumulative damage theory,
the fatigue life of the tower longitudinal weld is predicted. The results show that the tower structure meets the
design requirement, and the feasibility and effectiveness of the method are verified.
GUO Wenqiang (郭文强), SUN Pengwen (孙鹏文), NIU Lei (牛磊), WANG Zongtao (王宗涛)
. Fatigue Life Analysis of Longitudinal Welding Seam for Wind Turbine Tower[J]. Journal of Shanghai Jiaotong University(Science), 2020
, 25(2)
: 261
-265
.
DOI: 10.1007/s12204-020-2171-6
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