프리마운팅 탄성구조를 적용한 고속철도 제동디스크의 열구조 해석

초록

In general, brake disks cause fatigue damage due to heat by repeating heating and cooling during the braking process. During the braking process, hot spots and high thermal stress occur around the friction surface and the fastening part. And the contact force of the braking pads acting on the upper and lower surfaces of the disk is different, resulting in a difference in the amount of wear. In this paper, a structure for improving the above problems is proposed by applying a pre-mounting elastic structure of a braking disk of a commercial vehicle to a brake disk of a high-speed railway vehicle to improve these problems. A finite element model is configured for a solid brake disk and a pre-mounting elastic brake disk of an existing railway vehicle, and an analysis model is developed in which a dynamo test method is applied as an analysis condition. Finally, the analysis results are compared and analyzed to verify the proposed structure analytically.

키워드