摘要
高速复合材料飞轮是飞轮储能技术的发展趋势,而纤维缠绕型飞轮径向强度低、易脱层。该文将多层层间混杂飞轮发展为多层层内混杂飞轮,在飞轮径向实现压应力,解决了径向脱层问题。基于混合律得到材料的弹性常数,建立单层和多层复合材料飞轮的力学方程,考察横向拉伸模量对应力与变形的影响。设计并制作了6层层间混杂飞轮,并基于频闪光源同步转子的变形光学测量方法完成了旋转变形测试。结果表明:混杂设计方法灵活可行,变形测试方法测量结果与理论值符合程度较高。
The high-speed composite flywheel is the core component of advanced flywheel energy storage systems. However,the traditional filament winding flywheel can experience delamination due to the low radial strength.An intra-ply commingled composite flywheel,which was similar to a multi-layer hybrid flywheel,was designed to produce a radial compressive stress to eliminate the delamination.The mixed law was used to obtain the elastic constants to establish mechanical equations for a single layer and a multi-layer composite flywheel to assess the influence of the transverse tensile modulus on stress and deformantion. A 5-layer commingled composite flywheel was analyzed with elasticity theory with a parametric study conducted to identify the relationship between the hierarchical number,the stress,and the deformation.A 6-layer inter-ply commingled composite flywheel was manufactured and the rotation deformation was measured with the optical deformation measurement method using a synchronous strobe light.The results verify that the commingled flyweel design is feasible and the deformation measured with the optial deformation method conforms well with the theoretical value.
出处
《清华大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2015年第3期361-367,共7页
Journal of Tsinghua University(Science and Technology)
基金
清华大学自主科研项目资助(20111081032)
关键词
混杂飞轮
旋转试验
频闪光源
commingled composite flywheel
spin test
strobe light
