Page 5 - Automotive2-Railroad Industry
P. 5

Simulation of Actual Working Load Placed on a Car   Car Strength Testing System (Multi-Jack System)


                    Actual working load simulation testing can be performed on each part of the car
                    using the 12 dynamic jacks (30 to 250 kN).


















                     Endurance Evaluation and Periodic Inspection of Chassis Components


                    The chassis supports the weight of both the car and passengers, and communicates
                                                                                  Secondary spring       Air spring
                    drive force that propels the car forward via the wheels to the rail. In addition, it is   system  Car body
                    required to have a buffering function that absorbs the vibrations created while the
                                                                                                                Axle dumper
                    train is running.
                                                                          Chassis
                    The performance of each part, which has multiple functions, is thoroughly   frame        Primary spring
                                                                                                             system
                    evaluated.                                                                                  Axle spring
                                                                          Axle box
                                                                               Rail
                                                                                        Main route by which vibration is communicated
                    Evaluation Testing of Various Springs
                    Chassis springs and dampers used in trains not only require characteristic evaluation on development, but also
                    need to be removed and inspected depending on the mileage of the train and its period of use for quality
                    control purposes.






                           Axle Springs              Rubber Springs         Air Spring
                                                                                               Compression Plate with Parallelism
                                                                                               Adjustment Mechanism/Tensile Jig
                    Evaluation of Torsion Characteristics
                    The rail components that transmit rotation torque, such as the axles, are exposed to torsion fatigue
                    corresponding to the extent of transmission power and its inversion while the train is running. For this
                    reason, endurance testing is performed in order to check
                    whether they are likely to become damaged while in
                    use. Shimadzu's Servopulser TV series 0.5 to 20 kN/m
                    torsion fatigue testing machine is ideal for this.






                                    Wheels and Axles    TQJ-V Series Mobile Torsion Vibration Exciter  TV Series Torsion Fatigue and Endurance Testing System



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