NCREE Publishes Numerical Seismic Verification Method for Wind Turbine Nacelle Components
Structures · AEC industry
NCREE published a technical report addressing shake table testing constraints on large wind turbines by using 660 kW nacelle test data to construct numerical models, deriving seismic motions at component anchor points for experimental verification.
The National Center for Research on Earthquake Engineering (NCREE) published technical report NCREE-2026-006 in October 2026, titled 'Study on Numerical Verification Method for Seismic Performance of Wind Turbine Nacelle Components.' The report indicates that as high-capacity wind turbines expand into seismic zones, seismic evaluation becomes increasingly critical. However, physical constraints in shake table dimensions and payload limit full-scale testing of large turbine nacelles or complete assemblies. To address this, researchers established a detailed numerical model calibrated against shake table test data from a 660 kW onshore wind turbine nacelle. By executing dynamic seismic analysis, the model derives acceleration and displacement responses at anchor points of critical components, supplying input motions for standalone shake table validation while confirming model accuracy against experimental data.
Key takeaways
- Full-scale shake table testing of large wind turbine nacelles or entire systems is constrained by table dimensions and payload capacities.
- The study established a detailed numerical dynamic model based on shake table test results from a 660 kW onshore wind turbine nacelle.
- Numerical analysis determines seismic responses at critical component anchorages to serve as input motions for standalone component shake table verification.
- Comparing numerical simulations with physical test data validated the accuracy and applicability of the proposed numerical approach.
Source：國家地震工程研究中心 Read the original ↗
Prepared, checked and automatically published by AI; not individually reviewed by a human. Translation checked by AI.