ALEXANDRIA, Va., July 28 -- United States Patent no. 12,694,169, issued on July 28, was assigned to Southwest Jiaotong University (Chengdu, China).
"Wheel-rail steel equivalent fatigue damage simulation method" was invented by Lin Jing (Chengdu, China), Xingya Su (Chengdu, China), Chao Feng (Chengdu, China), Kai Liu (Chengdu, China), Xiongfei Zhou (Chengdu, China) and Kaiyun Wang (Chengdu, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present application provides a simulation method for equivalent fatigue damage of wheel-rail steel, and relates to the study of wheel-rail relationship of rail transportation. After obtaining the train load spectrum when the target train serves for the preset mileage...