点阵压气机叶轮轻量化设计及力学性能分析

以压气机叶轮为研究对象,轻量化设计为研究目标,设计了一种适合旋转周期对称结构应用的点阵填充点阵胞元.其目的是在保证满足设计要求的前提下,使叶轮刚度和强度具有可调性的同时降低叶轮质量.对转速为8×104r/min极限工况下的无填充轮、实心轮和不同点阵梁直径点阵填充轮进行了分析对比.结果表明,单个胞元梁直径为0.2mm,0...

Lightweight Design and Static Analysis of Compressor Lattice Impeller

Taking the compressor impeller as the research object and the lightweight design as the research goal, a lattice filled lattice cell suitable for the application of rotating periodic symmetric structure is designed. Its purpose is to make the rigidity and strength of impeller adjustable and reduce the quality of impeller on the premise of meeting the design requirements. The analysis and comparison of hollow impeller hub, solid impeller hub and lattice filled impeller hub with different diameters were carried out under the limit condition of 80000r / min. The results showed that the average circumferential deformation of lattice impeller with beam diameter of 0.2mm, 0.4mm and 1mm was 4.84%, 3.49% and 3.71% lower than that of solid impeller tip. For the impeller with a lattice beam diameter of 0.4mm, its weight can be reduced by 22.68% compared with the solid impeller. The average circumferential deformation of the tip of the lattice impeller lies between the unfilled impeller and the solid impeller. The results show that the impeller with lattice filling hub can not only reduce the weight effectively, but also improve the efficiency of the compressor.