Multi Shaker Vibration Control

Multi-Shaker Vibration Controller

The Data Physics 900 Series is a Feature-Rich MIMO Vibration Controller Developed Around Mil-810 Method 527 that Adapts to Any Multi-Shaker Configuration

The 900 Series shaker controller can reproduce any type of vibration – with 2-24+ shakers configured in any arrangement. It is a true MIMO controller – which means it can control setups with different amplifiers and shakers, off-center masses, and accounts for structural resonances in its control loop – matching amplifiers/shakers or centering the moving mass is not needed.

Shaker Table Controller Features

  • 2-24+ electrodynamic or hydraulic shakers
  • Gap free time History recording available in all MIMO test types
  • 900 Series vibration control hardware supports up to 72 channels in a single chassis, for low latency tests with many control and limit channels
  • 1024+ channel counts are supported with multiple chassis, all time synchronized
  • Enter profiles as Translation/Rotations, or based on sensor locations (Random/sine)
  • Microsoft Word based reporting

Try the SignalCalc 900 Series Software for Free

Explore the power of the SignalCalc 900 Series software – with no hardware required. Run simulated tests, review results, and generate reports exactly as you would in a live environment.

Data Acquisition • Signal Analysis • Vibration Control

Data_Physics_900_Series_DAQ-Analyzer-Controller_splash screen
DOWNLOAD THE FREE DEMO SOFTWARE

Critical Insights for Safe and Accurate Multi Shaker Vibration Testing

In this in-depth video, we reveal the multiple, inherent engineering challenges that are typical with multi shaker single axis testing and offer proven solutions to help you overcome them.

You’ll gain insights into the complexities of multi-shaker vibration testing and how to avoid costly mistakes by employing a properly configured vibration control system.

Vibration Profile Types the 900 Series Vibration Controller Can Reproduce Include:

SignalStar Matrix Multi-Shaker Random
Team Corporation Tensor (4 shakers in each X/Y/Z axis) - Controlled with 4 triaxial accelerometers. Driving Z Axis and controlling the X and Y to null; including modal deformation at higher frequencies.
The Tensor 18kN™ represents cutting edge technology in multi-axis testing. The system is designed to be over-determined – utilizing proprietary oil-cooled ED shakers for excitation out to 2,000 Hz.
The 12 actuator Tensor system being controlled in the plot on the left

MIMO Random

  • 2-24+ electrodynamic or hydraulic shakers
  • PSD (Spectral Density Matrix) reference profiles with or without cross axis profiles
  • SDM Matrix import from Matlab or Data Physics SignalCalc Analyzer
  • Over-constrained or square control – the optimal control strategy is used based on test configuration
  • Predictive Limiting/Notching
  • Ideal for 3- or 6- DoF road or air transportation simulations
  • Enter profiles as Translations/Rotations about a center, as translations at sensor locations, or a combination
  • Control Nulling – Null vibrations in a particular axis or at a specific location
  • Real-time FRF updating, or stored FRF
  • Kinematic Transformation – math channels representing 6DoF Translations/Rotations (can be used as control)
  • Mode shape Nulling – Keep your table (or test structure) rigid to a higher frequency by actively nulling resonant deformation

MIMO Sine

Our MIMO Sine is not just waveform replication with a sine profile. With optimized limiting/notching and customizable tracking filters, Data Physics MIMO Sine Controller is ideal for qualification of satellites and other large test articles.

  • 2-24+ electrodynamic or hydraulic shakers
  • Magnitude and Phase Control for sine sweeps and dwells
  • Over-constrained or square control – the optimal control strategy is used based on test configuration
  • Optimized Real-time Limiting/Notching
  • Enter profiles as Translations/Rotations about a center, as translations at sensor locations, or a combination
  • Configurable control parameters to sweep through resonances
  • Control Nulling – Null vibrations in a particular axis or at a specific location
  • Kinematic Transformation – math channels representing 6DoF Translations/Rotations (can be used as control)
  • Mode shape Nulling – Keep your table (or test structure) rigid to a higher frequency by actively nulling resonant deformation
SignalStar Matrix Multi Shaker Sine with Limiting
Two points on a resonant beam kept in-phase sweeping through resonances (with notching on measurement channels)
SignalStar Matrix Multi Shaker Replicator
Controlling two points along a resonant beam to be in phase to an arbitrary time waveform (controlling resonances)

MIMO Time Waveform Replication

Recorded field vibrations or import them into the Controller and play them back on a multi-axis shaker 
  • 2-24+ electrodynamic or hydraulic shakers
  • Import an acceleration vs time reference for each control channel, including data recorded in the field
  • Includes time waveform editor to splice and filter time references
  • Over-constrained or square control – the optimal control strategy is used based on test configuration
  • Control loop can be adapted to profiles with different spectral patterns
  • Real-time control loop updating as test runs, or stored drive test mode
  • Ideal for 3- or 6- DoF road or air transportation simulations

MIMO Mixed Mode (Sine/Random on Random)

  • 2-24+ electrodynamic or hydraulic shakers
  • Assign a broadband PSD matrix (Spectral Density Matrix) along with narrowband sine or random tones to each control channel
  • Intuitive setup GUI ensures all parameters are properly set up
  • Error tolerances drawn on the screen for live verification of a successful test execution
  • Over-constrained or square control – the optimal control strategy is used based on test configuration
  • Configurable control parameters to tune control loop
  • Ideal for 3- or 6- DoF tracked vehicle or helicopter transportation simulations
SignalStar Matrix Multi Shaker Mixed Mode
Two points on either side of a resonant beam each controlled to a Random-on-Random profile with different component levels for each control accelerometer
SignalStar Matrix Multi Shaker Shock
Two points on a resonant beam being controlled to the identical shock pulse

MIMO Classical Shock and Transient Control

  • 2-24+ electrodynamic or hydraulic shakers
  • A classical shock profile (half sine, sine beats, trapezoid, etc) or an imported transient is assigned to each control channel
  • Up to 65536 Block Size
  • Over-constrained or square control – the optimal control strategy is used based on test configuration
  • Ideal for 3- or 6- DoF transient simulation, such as those experienced by portable electronics (shock) or automobiles (potholes)
  • Ideal for long duration, low frequency earthquake or ship simulation
  • Real-time drive updating, or stored drive

MIMO SRS Shock Control

  • 2-24+ electrodynamic or hydraulic shakers
  • An SRS reference profile is assigned to each control channel
  • A time waveform conforming to each SRS is generated from wavelet components; and assigned to its corresponding control channel
  • Over-constrained or square control – the optimal control strategy is used based on test configuration
  • Ideal for long duration, low frequency earthquake or ship simulation
  • Real-time drive updating, or stored drive
Matrix Multi Shaker SRS
Two sides of a resonant beam, each being controlled to a different SRS shock pulse