Optimization of the Ultra-high Strength Steel Rotor of Flywheel Battery for HEV
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摘要: 分析了目前混合动力汽车常用的储能方式的特点及其存在的问题,指出飞轮电池在混合动力汽车中具有良好的前景。通过对比分析认为在20 000 r/min转速下,超高强度钢飞轮转子相比复合材料飞轮转子有较好的综合性优势。建立了超高强度钢飞轮优化设计的数学模型,利用该模型并借助Matlab计算了飞轮基本参数,进一步基于Abaqus有限元分析软件,优化出储能1 kW.h的飞轮转子的机械结构;优化后的结果满足混合动力汽车应用的要求。Abstract: This paper analyzed the characteristics and disadvantages of the common energy storage ways in HEV(hybrid electrical vehicle) and pointed out that the flywheel battery will have good prospects in HEV. Then thispaper introduced the basic principles of the flywheel battery. Through the comparative analysis, the paper arguedthat the ultra-high strength steel flywheel rotor have comprehensive advantages comparing with the composite materials one at a speed of 20 000 r/min. The paper established the mathematical model to optimize the structure of theflywheel. Using this model and with the help of Matlab, this paper calculated the basic parameters of the flywheel.Furthermore, based on the finite element analysis software Abaqus, the paper optimized the mechanical structure ofthe flywheel rotor storing energy of 1 kW穐.
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Key words:
- hybrid electrical vehicle /
- flywheel battery /
- flywheel rotor /
- optimization
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