Page 12 - Shimadzu Dynamic and Fatigue Testing Systems
P. 12

Electric-Hydraulic Dynamic and Fatigue Testing System



                                                                                                                                      Servopulser series electric-hydraulic dynamic and fatigue testing systems feature servo-hydraulic actuators, which are able to accurately
                                                                                                                                      reproduce input waveforms. Therefore, they are highly accurate in applying loads ranging from low to high. From high-performance standard
                                                                                                                                      models to products customized to satisfy various unique testing requirements, these systems support a wide range of dynamic testing   EHF Series  Electric Hydraulic Dynamic and Fatigue Testing System
                                                                                                                                      applications.





                                                                                                                                                      High Capacity and Compact


                                                                                                                                      By controlling the flow rate of oil, compact hydraulic actuators can apply large
                                                                                                                                      forces at a wide range of testing speeds, from extremely slow to very fast. This
                                                                                                                                      means they can be used for a wide variety of testing applications.


                                                                                                                                              High-Rigidity Frame


                                                                                                                                      A very rigid loading frame is used to prevent buckling samples.                                         EMT/NJ-SERVO/MMT Series  Electric Hydraulic Dynamic and Fatigue Testing System
                                                                                                                                      This ensures high reliability for a variety of testing applications.


                                                                                                                                                      From Low to High Speeds
             Electric Hydraulic Dynamic and Fatigue Testing System                                                                                    From Low to High Loads

            EHF Series                                                                                                                High-performance servo valves allow seamless and immediate change of the test
                                                                                                                                      force or speed.

                                                                                                                                              An Energy-Saving Operating
                                                                                                                                              Mode Is Also Available

                                                                                                                                      By using the optional energy-conservation unit (ECU) (page 36), an
                                                                                                                                      energy-saving  mode can be used to optimize the hydraulic power supply unit's
                                                                                                                                      power level based on the testing parameters and testing status. It reduces the                            Controller for Dynamic and Fatigue Testing Systems
                                                                                                                                      hydraulic power supply unit's power level when tests are in standby mode.                               Servo Controller 4830







                                                                                                                                          Basic Configuration of Servopulser Series                                              F
                                                                                                                                          Electric-Hydraulic Systems                                                    Electrical
                                                                                                                                                                                                                        communication   Piston
                                                                                                                                                                                                                        (control signal)
                                                                                                                                          By selecting (1) a loading frame, (2) a hydraulic actuator,
                                                                                                                                          (3) a controller and software, and (4) a hydraulic power     Load cell
                                                                                                                                          supply unit, Servopulser series electric-hydraulic systems                    Oil flow
                                                                                                                                          are able to accommodate a wide variety of test force and
                                                                                                                                          testing speed requirements. The hydraulic drive actuator,   (2) Hydraulic actuator
                                                                                                                                          which is electrically controlled via a servo valve, provides
                                                                                                                                          reciprocating motion capable of high test forces and a        Servo valve*   Servo valve  Spool      Various Dynamic Testing Systems
                                                                                                                                          wide response range, from low to high frequency.
                                                                                                                                                                                                         Stroke detector
                                                                                                                                                                                                         (built in the actuator)

                                                                                                                                          * Items marked with an asterisk are included based on the   (4) Hydraulic power   Accumulator*  (1) Loading frame  (3) Controller / Software
                                                                                                                                              actuator and hydraulic power supply unit combination.        supply unit




      12                                                                                                                                                                                                                                      13
   7   8   9   10   11   12   13   14   15   16   17