In order to find out the reason for the bogie frame instability alarm in the high-speed railway vehicle. the influence of wheel tread profile of the unstable vehicle was investigated. By means of wheel-rail contact analysis and dynamics simulation. the effect of tread wear on the bogie frame lateral stability was studied. https://www.roneverhart.com/HP-Compatible-Gen8-759548-001-600GB-15K-RPM-SAS-12Gb-s-2-5-HDD/