DescriptionThe STD-DN 44 Dry & Lubricated Reciprocating Sliding & Fretting Machine incorporates a s
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The STD-DN 44 Dry & Lubricated Reciprocating Sliding & Fretting Machine incorporates a servo hydraulic actuator driven by a high frequency analogue controller, which derives its set points via a 16 bit control and data acquisition card from a standard PC, running COMPEND 2020 software. Real time adaptive control features provided within the software allows high precision control of the actuator when working against highly non-linear loads. Sine, square, triangular and random waveforms may be programmed and, depending on the physical capabilities of the hydraulic system, oscillating frequencies up to 200 Hz may be controlled.
| Type of contact: | Ball/Flat | ||
| Flat/Flat | |||
| Line/Flat | |||
| Type of Movement: | Sine, Square, Triangular and Random | ||
| Load: | 5 to 1.000 N | ||
| Friction Force: | +/-500 N Maximum | ||
| Stroke – continuously variable: | 10 microns to 20 mm | ||
| Frequency: | 0.1 Hz to 200 Hz | ||
| Environment: | Dry or Lubricated | ||
| Temperature: | Ambient to 600°C | ||
| Super High Response Servo Valve: | 12 l/min | ||
| Actuator Bearings: | Hydrostatic | ||
| Dynamic Load: | 5.7 kN | ||
| Static Load: | 8.6 kN | ||
| Hydraulic Power Pack: | 12 l/min at 250 bar | ||
| High Speed Interface: | USB ADC | ||
| Resolution: | 16 bit | ||
| Number of Input Channels: | 1 to 6 | ||
| Maximum Data Rate: | All channels at 50 kHz | ||
| Interface: | Serial Link Interface Module | ||
| Software: | COMPEND 2000 | ||
| STD-DN 44/1 Small Perturbation Signal Generator | |||
| Type of Movement: | Sinusoidal sliding stroke with co-linear superimposed sinusoidal perturbation | ||
| Sliding Motion: | |||
| Maximum Stroke: | 20 mm (Amplitude: 10 mm) | ||
| Type of Movement: | Sinusoidal | ||
| Frequency (FS): | 0 to 5 Hz | ||
| Vibration Motion: | |||
| Stroke/Frequency: | 200 microns (Amplitude 100 microns) @ 0 to 200 Hz | ||
| 100 microns (Amplitude 50 microns) @ 0 to 300 Hz | |||
| Frequency (FP): | 0 – 300 Hz | ||
| Control Requirements: | FP must be greater than FS x 20 | ||
| Controlled Parameters | Frequency | ||
| Stroke | |||
| Carico | |||
| Temperatura | |||
| Durata della prova | |||
| Measured Parameters | Frequency | ||
| Stroke | |||
| Carico | |||
| Friction | |||
| Temperatura | |||
| Electrical Contact Resistance | |||
| Services | |||
| Electricity: | 380/415V, three phase + neutral, 50 Hz, 7.5 kW | ||
| 380/415V, three phase + neutral, 60 Hz, 7.5 kW | |||
| Mains water and drain: | 10 l/min (typical) |
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