SEV 360 Series
Products
- Air Cooled Series
- Water Cooled Series
The SEV 360 Series of Shakers are matched with the DSA 40K and DSA 45K Series of Power Amplifiers. This series of shaker is designed to operate with three type of armature diameters. Standard armature diameter is 360mm, but 440mm and 640mm armature diameter are also compatible with changes of the shaker body. The 440mm and 640mm armature are designed specifically for the aerospace sector as they offer very cross-high axial stiffness. The Power Amplifier is assembled in a single 19-inch industrial rack of 36-unit height which houses the power transformer, high voltage rectification, power modules for the armature, field power supply, starters for cooling systems and oil pumps, along with all its control and protection assemblies.
Standard Features
- Magnesium Alloy Casting based Armature Structure
- Swivel mechanism in Bottom Cover
- Rocker based Suspension
- Trunnion mounted Shaker Body
- IP-67 Non-Contact Inductive Sensors for:
- Armature Position
- Armature Under / Over Travel
- Shaker Orientation
- MEMS Sensor based Air Flow Detection
- DC + Pneumatic based Auto-Centring of Armature
- Shaker Body Isolation using Air Bellows
- System Base Isolation using Rubber Pads
- 7” Coloured TFT Touch Screen based Interface
- 32-bit Microcontroller based Control Unit
- Digital Gain Control of 0.1% Resolution
- Digital Sine Generation of 0.1Hz Resolution
- Display of Armature Voltage & Current in True RMS
- Isolated Armature Voltage & Current BNC Output
- Display of Field Voltage & Current
- Galvanic Isolation of Analog Input & Output
- Sensing and Display of Shaker Orientation
- Auto Start, Stop, & Interlocking of Horizontal Slip Table
- Multiple User Configurable Interlocks
- Built-in Diagnostic Tool
Optional Features
- Thermal Barrier for High / Low Temperature Operation
- PC based Power Amplifier Remote
- Automatic Trunnion for Shaker Body Rotation
- Explosion Proof for Lithium-Ion Battery Testing
- Field Power Regulation for higher Velocity
- Long Stroke for higher Displacement
- Pneumatic based Auto-Centring of Shaker Body
- Low Frequency Operation with Displacement Sensor
System Specifications
| Series | SEV 360 – DSA 40K | SEV 360 – DSA 45K | SEV 440A – DSA45K | SEV640A – DSA45K |
|---|---|---|---|---|
|
System Performance |
||||
|
Armature Diameter |
360 mm |
360 mm |
440 mm |
640 mm |
|
Sine Force (peak) |
3000 kgf (29.4 kN) |
3500 kgf (34.3 kN) |
3500 kgf (34.3 kN) |
3500 kgf (34.3 kN) |
|
Random Force (rms) |
3000 kgf (29.4 kN) |
3500 kgf (34.3 kN) |
3500 kgf (34.3 kN) |
3500 kgf (34.3 kN) |
|
Shock Force (peak) |
6000 kgf (58.8 kN) |
7000 kgf (68.6 kN) |
7000 kgf (68.6 kN) |
7000 kgf (68.6 kN) |
|
Acceleration (Sine) |
90 g |
100 g |
100 g |
80 g |
|
Acceleration (Random) |
70 grms |
70 grms |
70 grms |
60 grms |
|
Acceleration (Shock) |
180 g |
200 g |
200 g |
160 g |
|
Velocity (peak) |
1.8 m/s | 2.7 m/s* |
1.8 m/s | 2.7 m/s* |
1.8 m/s | 2.7 m/s* |
1.8 m/s | 2.7 m/s* |
|
Displacement (pk-pk) |
51 mm | 76 mm** |
51 mm | 76 mm** |
51 mm | 76 mm** |
51 mm | 76 mm** |
|
Axial Resonance (±5%) |
2600 Hz ±5% |
2600 Hz ±5% |
2400 Hz ±5% |
2200 Hz ±5% |
|
Useful Frequency Range*** |
DC to 2800 Hz |
DC to 2800 Hz |
DC to 2500 Hz |
DC to 2300 Hz |
|
Shaker Characteristics |
||||
|
Moving Element Mass |
33 kg |
35 kg |
35 kg |
42 kg |
|
Internal Load Capability |
350 kg |
350 kg |
350 kg |
350 kg |
|
Suspension Axial Stiffness |
< 1 kg/mm |
< 1 kg/mm |
< 1 kg/mm |
< 1 kg/mm |
|
Suspension Cross-Axial Stiffness |
400 kg/mm |
400 kg/mm |
800 kg/mm |
800 kg/mm |
|
Stray Magnetic Field**** |
< 1 mT (10 gauss) |
< 1 mT (10 gauss) |
< 1 mT (10 gauss) |
< 1 mT (10 gauss) |
|
Cooling Air Flow |
1800 cfm |
1800 cfm |
2000 cfm |
2000 cfm |
|
Compressed Air***** |
6 bar (87 psi) |
6 bar (87 psi) |
6 bar (87 psi) |
6 bar (87 psi) |
|
Shaker Body Mass |
3500 kg |
3500 kg |
4000 kg |
4000 kg |
|
Amplifier Characteristics |
|
|
|
|
|
Power Output |
40 kVA |
45 kVA |
45 kVA |
45 kVA |
|
Total Harmonic Distortion****** |
Typically, 0.5% |
Typically, 0.5% |
Typically, 0.5% |
Typically, 0.5% |
|
Input Impedance |
> 10 kΩ |
> 10 kΩ |
> 10 kΩ |
> 10 kΩ |
|
Input Sensitivity |
1 VRMS to 80 VRMS |
1 VRMS to 80 VRMS |
1 VRMS to 80 VRMS |
1 VRMS to 80 VRMS |
|
Signal-to-Noise Ratio |
> 80 dB |
> 80 dB |
> 80 dB |
> 80 dB |
|
Power Efficiency****** |
> 92% |
> 92% |
> 92% |
> 92% |
|
Armature Insert Pattern……………………………. |
Metric: 1 at Centre, 4 at 141.4 mm PCD, |
Metric: 1 at Centre, 8 at 200 mm PCD, 8 at 300 mm PCD, 8 at 400 mm PCD Inch: 1 at Centre, 8 at 8” PCD, 8 at 12” PCD, 8 at 16” PCD |
Metric: 1 at Centre, 4 at 100 mm PCD, 8 at 200 mm PCD, 8 at 300 mm PCD, 8 at 400 mm PCD, 16 at 600 mm PCD Inch: 1 at Centre, 4 at 4” PCD, 8 at 8” PCD, 8 at 12” PCD, 8 at 16” PCD, 16 at 24” PCD |
Notes:
- *Peak velocity with reduced field power for Shock.
- **Long stroke option.
- ***Low frequency operation below 5Hz may require body locking or seismic foundation.
- ****150 mm above armature head.
- *****Dry compressed air to be provided by customer at installation site.
- ******Measured on pure resistive load.