The gearbox technical data is available to the public. As an example, consider the 750 kW wind turbine gearbox from NREL shown in Figure 1, which is used as a speed increaser coupled with a generator. The Transmission Builder enables engineers to progress from initial design to accurate simulations in a matter of an hour. This vertical application revolutionizes the user experience in setting up the multi-body simulation model of the transmission while dramatically increasing the process productivity. Siemens PLM Software has developed a new preprocessor for gearbox design engineering: the Simcenter 3D Motion Transmission Builder (Transmission Builder). Several days are typically needed for model preparation, and to then simulate the nonlinear dynamics to obtain system-level loads for noise, vibration and harshness (NVH), transient and durability performance analyses, and further optimize the design for these attributes. Gearbox design engineers are familiar with the tedious process of modeling and parameterizing the gearbox in a multi-body simulation environment.
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