Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Experimental Study on Mechanical Behavior of Wind Turbine Frustum Tower
One scale model of 1.5MW wind turbine frustum tower in Baiyun Obo was carried on pseudo-static test. The failure mechanism and characteristics, stress changes and distribution laws, hysteresis performance and ultimate bearing capacity were studied. Test results show that the wind turbine tower belong to the sudden extreme point instability failure; the buckling bearing capacity is as the ultimate bearing capacity of tower. The maximum stresses of tower mainly distribute at the variable wall thickness section and bottom, while other parts basically dont yield. This indicate that the material utilization of this kind of tower structure remains relatively low, structural design has yet to be improved, at the same time recommends that reasonable strengthen measures should be taken at the weakest part of tower. The P-Δ hysteretic curve of tower shows anti-"S" shape, the overall strength and stiffness degenerate more rapidly, which indicates that the plastic deformation and energy dissipation capacity of frustum tower is poor. The test conclusions could reflect the stress condition of prototype tower and provide references for design.
Experimental Study on Mechanical Behavior of Wind Turbine Frustum Tower
One scale model of 1.5MW wind turbine frustum tower in Baiyun Obo was carried on pseudo-static test. The failure mechanism and characteristics, stress changes and distribution laws, hysteresis performance and ultimate bearing capacity were studied. Test results show that the wind turbine tower belong to the sudden extreme point instability failure; the buckling bearing capacity is as the ultimate bearing capacity of tower. The maximum stresses of tower mainly distribute at the variable wall thickness section and bottom, while other parts basically dont yield. This indicate that the material utilization of this kind of tower structure remains relatively low, structural design has yet to be improved, at the same time recommends that reasonable strengthen measures should be taken at the weakest part of tower. The P-Δ hysteretic curve of tower shows anti-"S" shape, the overall strength and stiffness degenerate more rapidly, which indicates that the plastic deformation and energy dissipation capacity of frustum tower is poor. The test conclusions could reflect the stress condition of prototype tower and provide references for design.
Experimental Study on Mechanical Behavior of Wind Turbine Frustum Tower
Li, Bin (Autor:in) / Gao, Chun-Yan (Autor:in) / Sun, Hai-Lei (Autor:in)
2013
5 Seiten
Aufsatz (Konferenz)
Englisch
Experimental Study on Mechanical Behavior of Wind Turbine Frustum Tower
| British Library Conference Proceedings | 2013
The Mechanical Behavior Analyses and Optimization on Large Wind Turbine Frustum Tower Structure
| British Library Conference Proceedings | 2013