What it is
- Sine force: 23,605 lbf (105 kN) peak
- Random force: 23,605 lbf (105 kN) rms
- Half-sine shock force: 43,419 lbf (193.1 kN)
- Acceleration: 150 g sine peak; 70 g random rms
- Useable shock: > 300 g with a 44 lb (20 kg) payload; > 200 g with a 66 lb (30 kg) payload
- Velocity: 118 in/s (3.0 m/s) sine peak, full field
- Displacement: 3.0 in (76 mm) peak-to-peak, continuous
- Usable frequency range: DC to 2.7 kHz
- Internal load support: 3,970 lb (1,800 kg)
- Amplifier: LDS SPA176K with integral FPS
Swept and dwell sine testing to 23,605 lbf (105 kN) at up to 150 g, with 118 in/s (3.0 m/s) velocity at full field.
Long-duration PSD work to 23,605 lbf (105 kN) rms and 70 g rms, sustained by the water-cooled design.
Two-millisecond half-sine pulses to 43,419 lbf (193.1 kN), with useable shock above 300 g on a 44 lb (20 kg) payload.
What it is used for
- Aerospace testing of large payloads: multi-shaker V9 systems are used extensively in the aerospace industry for large payloads.
- High-velocity, long-displacement testing: profiles that need 118 in/s (3.0 m/s) and 3.0 in (76 mm) of continuous stroke at the same time.
- High-g shock testing: useable shock above 300 g with a 44 lb (20 kg) payload.
- Low-frequency testing at full displacement: Lin-E-Air suspension with a body resonance below 5 Hz.
- Heavy payloads: test articles up to 3,970 lb (1,800 kg) on the internal load support, the highest in the LDS range.
- Horizontal testing: trunnion rotation or a shaker/slip table combo.
Key features
- Force, velocity, and displacement together: 23,605 lbf (105 kN), 118 in/s (3.0 m/s), and 3.0 in (76 mm) continuous displacement at the same time.
- Water-cooled: a raw-water cooling unit rejects up to 153 kW (522,050 BTU/h) and runs below 80 dBA.
- Lin-E-Air trunnion suspension: body resonance below 5 Hz, with a body rotation gearbox for vertical or horizontal operation.
- Stiff armature guidance: suspension rotational stiffness of 416,000 lbf·ft/rad (564 kN·m/rad).
- Internal load support: carries 3,970 lb (1,800 kg).
- Low stray field: under 10.3 gauss (1.03 mT) at 6 in (150 mm) above the table, full field.
- Backward compatible: all accessories and spare parts are interchangeable with older V9 models.
- Options: airglide mobility, thermal barrier, and a standard range of head expanders.
Why engineers pick it
The V9x system
- LDS SPA-K amplifier with integral FPS: 152 to 176 kVA in 8 kVA increments; 100 V rms rated output, 80 A rms per 8 kVA increment.
- Cooling unit: raw-water cooling unit rejecting up to 153 kW (522,050 BTU/h).
Site requirements
- Power: maximum required input is 170 kVA for the amplifier, 105 kVA for the FPS, and 8.3 kVA for the cooling unit.
- Compressed air: 100 psi (6.9 bar).
- Raw water: 52.8 gal/min (200 L/min) to the cooling unit, with a maximum supply pressure of 70 psi (500 kPa) and a maximum inlet temperature of 90 °F (32 °C).
- Ambient: shaker and cooling unit 45 to 86 °F (7 to 30 °C); amplifier and FPS 41 to 86 °F (5 to 30 °C).
- Acoustics: 112 dBA shaker, 85 dBA amplifier, 70 dBA FPS, and below 80 dBA cooling unit at 3.3 ft (1 m).