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Control Actuation Systems

Control Actuation Systems

High Performance Electromechanical Actuation

Our advanced, high power density Control Actuation Systems are designed to meet the challenging performance requirements for today’s advanced aerospace and weapons platforms.

Our on-site capability to design, test and qualify all unique components, assemblies and software/firmware enables our experienced engineering team to develop customized, high-efficiency electromechanical actuation solutions.

All mechanical, electronic and software elements are fully integrated and suitable for fin or canard control applications and are designed to achieve high slew rates under high loads in extreme environments.

EMA System & Design Advantages
  • High power density, minimal envelope
  • Fin/canard stow, deploy and locking capabilities
  • High G
  • High temperature thermal management
  • High power density: 32 kVA total system output
  • Up to 60 Hz Response
  • Microprocessor, DSP and FPGA electronics
  • Low voltage power supplies
  • EMI/EMC circuitry and enclosures
  • Rapid, accurate response at hypersonic speeds
  • Electromechanical actuation design
    • Rotary (up to 5,000 in-lbf/566 Nm)
      • All geared
      • Linkage systems
    • Linear (up to 10,000 lbf/2,250 N) 
      • Ballscrew
      • Jackscrew 
Missile & Torpedo Fin Actuation Systems
Mechanical Features
  • Mixed gearing transmission
  • Torque/Speed Ratio: 230:1
  • Fin Lock Capability
  • 1″ Diameter Motor
Electronic Features
  • Up to 20 amps per channel
  • DSP Processor
  • Control Type: 4 Quadrant
  • Servo Type: 3 Loop
  • Ruggedized COTS
  • Auxiliary port for downloads and test capability
System Performance
  • No Load Slew Rate: > 800 deg/sec
  • Loaded Slew Output Power: > 0.84 HP
  • Stall Torque: >800 In-Lbs
  • Frequency Response: 50 Hz +/- 1° @ -3 dB
  • Typical Angular Travel +/- 30°
Hypervelocity Control Actuation Systems
Electronic Features
  • 30 amps per channel 
  • 4 axis 240V min
  • Control Type: 4 Quadrant
  • Servo Type: Voltage Control
  • Relative position loop
  • Aux port for downloads and test capability
Mechanical Features
  • Mechanical efficiency: 85%
  • < 2.5" motor diameter
  • Concentric EMA design
    • No gearing
System Performance
  • No Load slew rate >200 deg/sec
  • Loaded slew output power >2.1 HP
  • Stall Torque: 6,720 in-lbs
  • Frequency response: >23 Hz 
  • Angular travel: +30°, -10°
Miniaturized High G Projectile Control Actuation Systems
Electronic Features
  • 4-Axis 13 to 18V, 1 Amp per channel 
  • Servo Type:
    • Position Loop
    • Voltage Control
    • Bus Compensation
  • Relative position loop
Mechanical Features
  • Slider/Crank transmission
  • Fin stow, deploy and lock capability
  • Integrated design solution
  • 1.3″ D x 2.0″ L
System Performance
  • High G: > 25,000 G
  • No load slew rate: >1800 deg/sec 
  • Loaded slew output power: >0.5 mHP
  • Stall Torque: >0.5 in-lbf
  • Frequency response: 60 Hz,     +/- 1º, -3dB 
  • Angular travel: +/- 20º
Shape Memory Alloy Fin Lock

The SMA pin puller has the ability to be unlocked using a non destructive low current pulse which allows a system to be tested in the all up configuration. Once final testing is complete the SMA pin puller can be manually reset to the locked position.

  • Non-pyrotechnic
  • Manually resettable
  • Test mode capabilities
On-Site Analysis & Testing Capabilities
  • System simulation capability
  • Kinematics analysis
  • Gear train analysis
  • Motor performance analysis
  • Circuit analysis
    • Simulation, tolerance, derating
  • Mechanical analysis
    • Stress, thermal, modal/vibration/shock
  • Risk reduction testing
  • Component integration & test
  • System integration & test
  • ATP & ESS testing
  • Software qualification
  • Hardware qualification
    • Inert, fit check, FAI, SIL, HIL, ground test, bench test, flight test
  • Hardware qualification
  • Development testing
  • Automated test console
  • Acceptance testing equipment
    • ESS, HASS, ATP
    • Motors, actuators, circuit cards, ECU & system
  • Qualification testing equipment
    • Aero load test rig, stiffness test rig, endurance rigs
    • Shock, vibration, etc. fixtures
Related Technologies:

NOTE: The listed performance data may represent specific program requirements and not the design limitations of the device.

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