Multiple Input - Multiple Output
JAGUAR recreates multiple degree of freedom environments in the laboratory. Applications as diverse as shaking a portable computer in 3 axes simultaneously,driving a very heavy structure in one axis while sharing the load over many shakers,or even recreating 6 DOF movement at each of the four wheels of an automobile may now be accomplished with JAGUAR MIMO applications.
Many control systems purporting to be multi-shaker controllers simulate Random and Swept Sine excitation from time data replication. This approach is statistically inaccurate.JAGUAR MIMO produces true Random with one control per actuator or averaged control points per actuator.The same quality of control offered by MISO Random is inherent to MIMO Random control. Adaptive control guarantees rapid equalization and accurate control in the face of non-linear response.It also reduces the time required to achieve full level testing,which reduces the exposure to low level energy for the test article. MIMO Random assures accurate tests while uncoupling the shaker responses from each other and the governing phase.
MIMO Sine,like MIMO Random,controls phase between actuators and between axes.
By maintaining a three dimensional impedance matrix, JAGUAR is always capable of determining the contribution from each shaker to the overall response and properly differentiating for each actuator so that proper, accurate,safe control is assured.The complex issue of singularities is addressed with an elegant solution that permits intricate tests to be performed without having to resort to test segmentation in an attempt to avoid the singularity.
JAGUAR ’s MIMO suite of capabilities includes both short duration Transient Waveform Control (TWC)appropriate for replicating many transient and seismic events and indeterminate duration waveforms (Waveform Replication)typically used to replicate automotive style durability tests.Older style solutions do not update the system H(f)during the output phase of the loop. JAGUAR uses a real-time compensation technique that permits automatic adjustments to the system ID as the measured response changes.This feature ensures optimum safety and accuracy for your test. It also reduces equalization time,speeding the actual test process and minimizing low level exposure for the test article.
| MIMO Technical Specifications | (click to expand) |
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