某重型薄壁伸缩式高塔结构静动态分析

Static and Dynamic Analysis of a Heavy-duty Thin-wall Telescopic Tower Structure

针对某重型薄壁伸缩式高塔结构性能指标要求高、设计难度大的问题,为降低研制风险,采用有限单元法建立了该重型高塔结构详细的力学分析模型,对4种典型工况下的结构静动态性能进行了分析,获得了结构上详细的应力分布、变形情况和系统整体振动频率,计算结果表明,该重型薄壁伸缩式高塔方案满足各种工况下的设计要求,同时指出了目前结构设计中的薄弱部位,为该重型高塔结构改进设计提供理论依据。

In order to solve the problem that the structural performance index of a heavy-duty thin-walled telescoping tower is high and the design is difficult, the finite element method is used to establish a detailed mechanical analysis model of the heavy tower structure. The static and dynamic performance of the structure under four typical conditions is analyzed. Structural stress distribution, deformation, and overall system vibration frequency are obtained. The calculation results show that the heavy-duty thin-walled telescoping tower scheme satisfies the design requirements under various operating conditions. The weaknesses in the current structural design are pointed out, which provides a theoretical basis for the improved design of the heavy tower structure.