复合材料飞轮转子设计

Design of composite flywheel rotor

考虑到转子与驱动机构的连接,给出了一种金属轮毂加复合材料轮缘结构飞轮转子的设计方法。分析了转子材料、结构、连接及制作工艺等因素对储能密度的影响,分析结果表明:复合材料轮缘内外径比值α是影响其储能密度的关键,根据轮缘材料选取合理值,对轮毂进行优化可以进一步提高转子的储能密度。分析中所用复合材料及胶粘剂力学常数的准确性是影响仿真结果的主要因素,通过实验对其理论值进行修正可以进一步提高仿真结果的准确性。对实际应用中一个具体飞轮转子进行了设计并制作出了转子,在20 000 r/min转速范围内进行了旋转应力实验,仿真分析与实验结果取得了较好的一致性,证明了本文设计方法的正确性。

A design method of flywheel rotor consisting of composite rim and metal hub is given con sidering connection between rotor and driving machine. The influence of the factors such as the material, configuration, connection and facture technics of rotor on the energy density is analyzed. In the result, the ratio of inner radius to outer radius of rim is a key factor for energy density, which is de termined by rim material. Optimizing hub can also further improve the energy density. Due to the the ory value of composite and the mechanic constant of glue is not exact, it has been revised via the ex periment for improving the veracity of emulational results. A composite flywheel rotor is produced, moreover, the rotate stress testing is carried on the speed of 20 000 r/min. The results of emulation are consistent with test, it