从高速转向架的设计原则出发，论述了轻型构架的设计思想，分析了在这种思想指导下结构设计的特点及其应注意的一些问题。采用有限元法对构架强度进行了计算分析，在对轻型构架的强度和力学特性有一定认识的同时，验证了结构设计的合理性。最后，分析了构架静强度试验和疲劳强度试验结果，证明构架达到了工程设计要求。 Based on the design principle of high-speed bogie, the design thought of light-weight frame is expounded, and the characteristics of structural design and some problems that should be noticed under the guidance of this kind of thought are analyzed. The finite element method was used to calculate and analyze the strength of the frame, and the strength and the mechanical properties of the light frame were recognized. At the same time, the rationality of the structure design was verified. Finally, the results of static strength test and fatigue strength test of the frame are analyzed to prove that the structure meets the engineering design requirements.