1. 사양 1) 15kN Hydraulic Actuator System (1) Hydraulic Actuator ① Dynamic Force Rating : ±15kN or more ② Dynamic Displacement : ±75mm or more ③ Hydraulic performance : ±15mm at 10Hz of 14kN dynamic load. (2) Hydraulic Servo Valve ① Rated flow capacity : 56 lpm (3) Force Transducer ① Fatigue rating should be over ±15N Fatigue rated (4) Hydraulic Hoses (5) Swivel Head Assembly① Dynamic force capacity : ±25kN or more ② Static force capacity : ±38kN or more 2) 4.5kN Hydraulic Actuator System (1) Hydraulic Actuator ① Dynamic Force Rating : ±4.5kN or more ② Dynamic Displacement : ±75mm or more ③ Hydraulic performance : ±24mm at 10Hz of 4kN dynamic load. (2) Hydraulic Servo Valve : ① Rated flow capacity : 38 lpm (3) Force Transducer ① Fatigue rating should be over ±5kN Fatigue rated (4) Hydraulic Hoses (5) Swivel Head Assembly ① Dynamic force capacity : ±5kN or more ② Static force capacity : ±10kN or more 3) Hydraulic Power Unit (1) Hydraulic Power Supply ① Nominal total pump flow with should be 110 lpm or more. ② Nominal noise rating should be 68dB(A) at 1 meter distance or lower. ③ Electrical voltage : 380 Volts, 60 Hz, 3 Phase ④ Minimum 950 liter aluminum reservoir . (2) Hydraulic Service Manifold ① 180 lpm (50GPM) maximum total flow capacity. ② HSM should be controlled by On/Off/low/high pressure control. ③ HSM should be controlled by slow turn on /off control. 4) Digital Servo Controller (1) Main controller ① It should be designed with 3 control channels and 2 stations or more. ② Communication method between controller and computer should be ethernet method ③ It should include 8 channels auxiliary data input or more. ④ It should include 8 channels auxiliary data output or more.(2) System Computer and Printer ① CPU : Intel Core2duo E6750 more ② RAM : 2G ram more③ LCD : 22" LCD ④ Printer : Inkjet Color Printer (3) Test Software ① The software should include: Tensile, Compressive, Bend, Multi-rate Ramps, and Profile loading tests. ② Test data could be stored in ASCII, Lotus, or Excel formats for the later user's analysis with his favorite tools. ③ Null pacing adaptive control algorithm should be provided for the use with ramp command signals ④ Included are a two channel or more on line data display (X vs. Y or Time vs. YY), digital displays, and a system exerciser for setting up tuning parameters and warming up the system prior to testing ⑤ included interface for Simulation software package 5) Load Unit (1) Load Unit should include T slot base plate(700 * 2000mm)(width * length) (2) Load Unit fatigue rate should be over 100kN payload (3) Crosshead should be included lock by hydraulic clamp (4) Crosshead should can up and down by Hydraulic Cylinder 6) Simulation Software Package (1) It should include Test System Configuration (2) It should include function of Edit and analyzed about time histories and histogram (3) it should include identify the system model by white noise drive files (4) it should include reproduce transducer responses (5) Powerful graphically display functionality for frequency data. 7) Fixtures (1) Reaction Fixture (250 X 250 X 800mm) (2) Fixture For Component Vibration Test (3) Fixture for Full Bi-cycle Test (4) Fixture for Fork Strength test (5) Fixture for Fork Fatigue test