摘要
叶轮是离心压缩机的核心部件之一,对于悬臂结构的转子系统,叶轮的质量和应力大小直接影响着转子的安全稳定性,因此对叶轮进行结构优化设计,降低质量和应力尤为关键。本文综合有限元分析方法和数学优化算法,对某型号蒸汽压缩机半开式叶轮进行优化设计,优化后叶轮质量降低27.1kg,降低约16.1%,叶轮最大等效应力降低196.4MPa,降低约18.5%,优化设计效果明显,对降低成本和提高机组转子稳定性有着重要意义,具有良好的工程实用价值。
Impeller is one of the core components of a centrifugal compressor. For a cantilever rotor system, the mass and stress of the impeller directly affect the safety and stability of the rotor. Therefore, it is important to optimize the structure of the impeller to reduce the quality and stress. In this paper, the finite element analysis method and mathematical optimization algorithm are used to optimize the semi-open impeller of a certain type of MVR compressor. The quality of the impeller is reduced by 27.1 kg, about 16.1%, the maximum equivalent stress of the impeller is reduced by 196.4 MPa, about 18.5 % after optimization.The effect of optimization design is obvious, which is of great significance to reduce costs and improve rotor stability of the compressor unit.
作者
袁建宝
霍文浩
蒋立君
王磊
孙皓
Jian-bao Yuan;Wen-hao Huo;Li-jun Jiang;Lei Wang;Hao Sun(ChongQing General Industry(Group)Co.,Ltd)
出处
《风机技术》
2020年第1期52-57,共6页
Chinese Journal of Turbomachinery
关键词
离心叶轮
结构优化
有限元
减重设计
Centrifugal Impeller
Structure Optimization
Finite Element
Lightweight Design
