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640kN QUAD Multishaker

The QUAD Multishaker is the most powerful electrodynamic shaker of the ESTEC Test Centre. The QUAD multishaker can efficiently and safely test payloads with a mass of up to 10000kg in vertical direction thanks to a thrust of 640kN generated by four single 160kN shakers. A magnesium alloy head expander connected to the four shakers creates a 3.3m x 3.3m interface for payload installation. The QUAD shaker is used for sine, random* or transient testing in the frequency range from 3Hz to 2000Hz with acceleration levels from 0.05 g up to 20 g. A state-of-the-art control system is available with up to 40 available channels for vibration input control and automatic test article response limiting. More acceleration measurement channels can be recorded by a mobile data handling system with up to 512 measurement channels.

shaker
The main parameters of the QUAD Multishaker are listed below:

Maximum thrust:
• Sinusoidal
• Transient
• Random*
 
640kN peak
1280kN peak
     
Maximum displacement in sine
Maximum displacement in transient
Maximum velocity
  20mm p.p.
30mm p.p.
1.6m/s
     
Maximum sine acceleration
Maximum transient acceleration
  20 g
40 g
     
Minimum controllable level < 100Hz
Minimum controllable level > 100Hz
  0.05 g
0.1 g
     
Frequency bandwidth:
• In sine
• In transient
 
3-2000Hz
3-2000Hz
     
Maximum load
Maximum overturning moment
Mass of moving assembly
  10000kg
350kNm
3260 kg
     
Cross-axis response <150Hz   < 5%
     
Empty facility first resonance   180Hz
     
Test article interface:
• Table outer dimensions
• Hole pattern
• Hole dimensions
 
3.3m x 3.3m
80mm x 80mm
M10
     

* Random vibration levels and frequencies on request.

     

Go to detailed facility description

   

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