飞轮电池是一种利用机械能进行能量储存的新型储能方式,相比抽水储能方法,飞轮电池在电力调峰中拥有很好的发展潜力。通过分析得出圆环状飞轮转子的应力分布,设计了飞轮转子的内外半径比,计算得出了有效储能为90 MJ的超强度钢飞轮转子参数;通过对比指出,同性材料飞轮相比纤维材料飞轮在电力调峰中有较好的综合优势。

Flywheel battery,which uses mechanical energy to store energy,is a new type of the energy storage,compared to pumping energy storage methods,flywheel battery enjoys a good potential in power peaking. Through an analysis,this paper obtains the stress distribution of the flywheel rotor,designs the inner and outer radii ratio, and calculates the mechanical structure of the ultra-high strength steel flywheel rotor which can store 90 MJ of energy. It is concluded that the metallic material has superior advantages to the fiber material for the flywheel in the power peaking.

本文对比了复合材料飞轮转子与金属材料飞轮转子的性能,指出复合材料比强度高、密度小等特点使其可以使飞轮具有更高的极限转速和储能能力。同时指出了复合材料各向异性的特点使得其垂直纤维方向强度低,限制了飞轮的最高转速。介绍了目前复合材料飞轮主要采用单层圆环飞轮和多层圆环飞轮2种结构形式。同时指出采用柔性树脂基体,改善树脂和纤维的界面粘结状态和增强树脂本身的强度也是提高复合材料径向强度的有效途径。

This paper compares the performance of the composite flywheel rotor and the metal flywheel rotor ,The fly-wheel can have higher limit speed and more energy storage capacity for the high strength and low density of composite mate -rials.The anisotropy of the composite material limits the maximum speed of the flywheel .Two kinds of structure of composite flywheel are introduced .The single-ring flywheel and the multi-ring flywheel .Using the flexible resin matrix ,enhancing the interface performance of resin and fiber ,reinforcing the strength of resin concrete can improve the strength of composite ma-terials.

介绍了复合材料用于飞轮制造的优势,以及飞轮贮能技术具有比能量、比功率大,寿命长等优点;对国内外先进复合材料飞轮的主要研究成果和发展现状进行了论述;概括了飞轮贮能在不间断电源、电力调峰和电动车辆领域的应用。

Composite materials made for flywheel have many advantage and composite flywheel for energy storage has virtues of large specific energy ,large specific power ,long life and so on .The development status ,main application fields and development trend at home and abroad were discussed in detail ,such as uninterruptible power system ,electric power load and electric vehicle .

反应堆冷却剂主泵飞轮周围的间隙空间充满流体。飞轮按额定工况速度旋转时,间隙内流体作周向剪切流动的同时产生强烈的湍流泰勒涡二次流动,改变了飞轮间隙流的传热特性。本文采用不同的湍流模型对湍流泰勒涡进行了模拟,雷诺应力模型的模拟结果与现存实验结果最为接近。数值模拟显示,主泵飞轮圆柱面间隙中充满排列规则的周期泰勒涡对,飞轮端面间隙中出现覆盖全端面的扁环形涡胞。飞轮圆柱表面的当地热流密度和努塞尔数与泰勒涡一样呈明显的周期性变化规律。圆柱面泰勒涡对和端面涡胞增强了飞轮区域的传热能力,对飞轮和周围承力部件的温度分布产生重要影响。

Coolant is filled in gap between upper flywheel and components around . When the upper flywheel rotates at rated speed , turbulent Taylor vortices can be observed in the gap fluid .In order to predict and estimate the influence of turbulent Taylor vortices on heat transfer effect of the coolant ,different turbulent models were chosen to simulate this phenomenon .The result of Reynolds stress model is proved to be the best one after comparing with an existing experiment .It is shown that several pairs of Taylor vortice distribute periodically along the side of flywheel and only one vortex is found near the top and bottom of flywheel .Heat flux and Nusselt number on the side of flyw heel show a periodical variation characteristic w hich is determined by the distribution of turbulent Taylor vortices near the wall .Therefore heat transfer effect is greatly enhanced by turbulent Taylor vortices ,which will exert great effect on thetemperature distribution of flyw heel and components around

以变速器飞轮作为研究对象，提出和分析了三种不同的飞轮成型方案，并对最佳方案利用 Deform 软件对飞轮的成型过程的金属流动和应力应变进行了分析，以获得相关参考数据。

This paper mainly analyzes and compares the three different ways of flywheel molding. With the Deform software, the metal flow and the stress and strain about the optimized scheme of molding process of flywheel are analyzed to obtain the relevant data for reference.