Abstract
Dealing with lightening is required to enable further speed-up in Shinkansen Rolling Stock and the unsprung mas needs to be decreased. The increase of brake energy by the speed-up gives damage to the brake disk and brake lining.Therefore, these need a drastic change. So, brake disks made of aluminum composite material was developed. Full-scale aluminum composite disks were made and then tested in full-scale dynamometer to adopt the disks in Shinkansen. As the result, the friction characteristics were approximately same compared with those of forged steel disks which have been used in Shinkansen Rolling Stock.
