金属/CFRP混合结构立柱设计及分析

    Design and Analysis of Metal/CFRP Hybrid Columns

    • 摘要: 为探索机床立柱轻量化的新方法,以某机床立柱为研究原型,设计了一种金属/CFRP混合立柱。设计了内圆外方的立柱结构并对其进行拓扑优化,结合蜘蛛网结构对其进行仿生设计并对结构尺寸优化。在仿生立柱内部铺设CFRP材料形成金属/CFRP混合立柱,设计了7种CFRP铺层角度方案,研究了铺层角度和铺层厚度对混合立柱性能的影响。对原型立柱与金属/CFRP混合立柱进行静态性能、动态性能分析。结果表明,在CFRP铺层角度为45°、铺层厚度为32 mm时,金属/CFRP混合立柱比原型立柱质量减轻了38.7%,而且静动态性能均得到了提高。

       

      Abstract: In order to explore a new method of lightening machine tool columns, a metal/CFRP hybrid column was designed based on a machine tool column. The column structure with inner circle and outer side was designed and its topology was optimized. Combined with spider web structure, it was bionic designed and its structure size was optimized. CFRP materials were laid inside bionic columns to form metal/CFRP hybrid columns. Seven CFRP laying angle schemes were designed, and the influence of laying angle and thickness on the performance of hybrid columns was studied. The static and dynamic performance analysis of the prototype column and the metal/CFRP hybrid column shows that the weight of the metal/CFRP hybrid column is reduced by 38.7% compared with the prototype column when the CFRP ply angle is 45° and the ply thickness is 32 mm, and the static and dynamic performance is improved.

       

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