关键词: 竹节, 仿竹节维管束结构, 风力机塔筒

Abstract: Bamboo has a strong survival ability, which is closely related to its unique biological structure. From a macroscopic perspective, the non-uniform distribution of bamboo nodules along the bamboo body is the most significant structural feature of bamboo, and the nodules increase the axial and radial compressive capacity of the bamboo material. The vascular bundle of bamboo nodes was further investigated from the microscopic point of view, and it was found that the vascular bundle of bamboo nodes was the main load-bearing structure of bamboo nodes. In consideration of the similarity between bamboo and wind turbine tower, the bamboo vascular bundle structure was applied to the tower structure to design the bamboo vascular bundle tower, and the static analysis of the bamboo vascular bundle tower and the conventional tower was carried out under the extreme working conditions. The results show that the maximum response stress of the bamboo vascular bundle tower is reduced by 22.12% and the maximum response displacement is reduced by 9.02% compared with the conventional tower, meaning that the bamboo vascular bundle structure improved the strength and stiffness of the bamboo vascular bundle tower. This study provides a theoretical basis for the practical engineering application of bamboo microstructure.

Key words: bamboo nodules, bamboo-like vascular structures, wind turbine towers