THE DYNAMIC STRAIN INFLUENCED BY TEMPERATURE IN FATIGUE TEST BLADE

Abstract

Abstract: In the environment with different temperature, the modulus of unidirectional fabric composites in wind turbine blade is influenced by temperature at large extent, resulting in the change of the blade nature frequency, finally leading to dynamic strain changing in the fatigue test blade. And the fatigue test load is monitored by the dynamic strain. This paper introduced how temperatures influence fatigue test blade, and summarized how to adjust the frequency change to get relative dynamic strain in the critical area to ensure the accuracy of the applied fatigue test load.

Key words: wind turbine rotor blade, dynamic strain, frequency changer, temperature, stiffness

CLC Number:

TB332

LIANG Ying. THE DYNAMIC STRAIN INFLUENCED BY TEMPERATURE IN FATIGUE TEST BLADE[J]. Fiber Reinforced Plastics/Composites, 2016, 0(6): 81-83.

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