LOCOMOTIVE DEFLECTION TESTING METHOD AND LOCOMOTIVE DEFLECTION TESTING APPARATUS

Provided is a locomotive deflection testing method, belonging to the technical field of the safe running of locomotives. The method comprises: linking an auxiliary testing locomotive to at least one side, in a running direction, of a locomotive to be tested (S310); determining a reference point on a first locomotive body surface from two opposite locomotive body surfaces of the locomotive to be tested and the auxiliary testing locomotive, and determining a projection point of the reference point on a second locomotive body surface from the two locomotive body surfaces to be a first projection point (S320); performing test running on the locomotive to be tested and the auxiliary testing locomotive together, and determining a projection point of the reference point on the second locomotive body surface to be a second projection point (S330); and determining the anti-deflection performance of the locomotive to be tested on the basis of the degree of deflection between the first projection point and the second pr