首页|Analysis of the axial load of bolts of wheel-mounted brake discs of high-speed trains
Analysis of the axial load of bolts of wheel-mounted brake discs of high-speed trains
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
NSTL
Elsevier
? 2022 Elsevier LtdIn this paper, the axial load of bolts connected to the brake disc under emergency braking conditions with different initial speeds was tested by a 1:1 bench test. A finite element model was established to analyze the evolution law of the bolts’ axial load in the braking process in detail. The results show that the axial load variation range of bolts of the bench test first increased and then decreased with the increase of emergency braking initial speed. The maximum load value (59.4 kN) appeared under emergency braking conditions with an initial speed of 280 km/h. The variation range of the bolts’ axial load of the simulation was 55.5 kN, and the error was 7% compared with the test. The influence of material changes of disc and bolt on bolts’ axial load in the braking process was summarized, thus providing a reference for the material selection of bolt and disc.
NSTL
Elsevier
