Calculated-experimental rational for residual resource of the body of the railway car
The technique of diagnosing of a bearing structure of railways cars of models 47К and 47D is developed. Monitoring of technical condition of bodies after long-term service with non destroying control methods is executed. Calculations of the stress-strain condition of a bearing structure taking into account the results of inspection of technical condition with the use of finite element method are carried out. Railways cars actual tests are executed at operation of typical conditions for operation loading modes. Conformity of the object of researches with the requirements of the actual standard documentation on durability is installed. On the basis of the results of calculations and tests of a construction of the railways cars the estimation of a residual resource of the most loaded areas is executed. Values of a residual resource for various control areas the railways cars are received. It is found, that the deadline of maintenance of considered type of the railways car can be 52 years.