This study focuses on a large hybrid tower wind turbine with a hub height of 160 m. Using a subsystem integrated simulation strategy
comprehensive research on its nonlinear dynamic response is conducted with the aid of Simpack
Matlab/Simulink
and OpenSees software platforms. Initially
a multibody dynamic model of the rotor-nacelle subsystem is established
followed by nonlinear finite element modeling of the hybrid tower subsystem
with special consideration given to the coupling effects of aerodynamic loads. An integrated dynamic simulation model is developed using a client-server architecture combined with TCP/IP communication technology
and its correctness is verified. The study further investigates the influence of material nonlinearity and - effects on the dynamic response. By comparing displacement and stress calculation results
it is demonstrated that nonlinear characteristics have a mon-negligible impact on the dynamic response of large hybrid tower wind turbines
and such effects should be carefully considered in numerical simulations.
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