基于一维化梁理论的提升机天轮轴力学分析

Mechanical analysis of hoist head sheave shaft based on one-dimensional beam theory

天轮轴作为矿井提升机天轮装置的核心部件,其力学分析及计算结果的精度关系到整个提升机乃至矿井的安全生产。运用一维化理论对天轮轴进行力学特性分析:首先基于Carrera统一格式构建了轴段单元的二阶位移场,然后运用虚位移原理建立了天轮轴的力学模型,最后通过与ANSYS Solid模型仿真结果的对比验证一维高阶模型的精确性以及可用性。该方法相对于传统的梁理论有着明显的优越性,可为天轮轴等轴类零件的设计提供理论支持。

As the core part of the mine hoist, the mechanical analysis and calculation accuracy of the head sheave shaft is related to the safe production of the whole mine. The mechanical properties of the head sheave shaft are analyzed by the one -dimensional beam theory. First of all, the second-order displacement field of the element is established using the Carrera Unified Formulation. Then the mechanical model of the head sheave shaft was established by employing the principle of virtual displacement. At last, the accuracy and practicability of the one-dimension high-order model is demonstrated by comparing ANSYS simulation results. Compared with the traditional beam theory, this method has obvious superiority, which can provide theoretical support for the design of the head sheave shaft.