Aerospace & Defense

For Aerospace and Defense companies Allied Motion provides standard mil-aero designed products as well as special-design motors, electronic drives and encoding devices that can stand up to the rigorous demands of military and aerospace applications.

  • Aircraft Emergency Fuel Boost Pump

    Many small propeller-driven aircraft benefit from a two-speed pump that maintains fuel pressure while cruising, but boosts fuel delivery for takeoff and landing.

    One aircraft pump manufacturer consulted Allied Motion seeking such a two-speed fuel pump motor solution. Allied’s design team engineered a unique solution in which a standard Endurance brush DC motor was modified to accept two different voltages, enabling our customer to supply a reliable two-speed pump that doesn’t stall, as was the case with some other motors they tried previously.

  • All Terrain Tracked Wheelchair

    The Trackchair™ is a unique zero-turn-radius, all-terrain wheelchair developed to enable wheelchair-bound people, including veterans, to enjoy the freedom of getting off-road. The Trackchair can go places not previously possible for wheelchair users like woods and beaches, in poor conditions like mud, sand and snow.

    Allied Motion’s RAD36 series right-angle DC gearmotors power the Trackchair, enabling it to safely carry up to a 350 lb (159 kg) person at up to 5 mph (8 km/h) while negotiating inclines, depressions, debris and other off-road obstacles and conditions.

  • Autonomous Vehicle Laser Sensor

    DARPA’s annual “Urban Challenge" vehicle race spurs autonomous vehicle technology development. The implications for auto-drive cars and unmanned military operational vehicles are clear. Five of the top six finishers, including the winner, in the 2007 Challenge used the 64-element LIDAR sensor shown here that generates more than 1.3 million distance points per second.

    Allied Motion engineers worked closely with the LIDAR maker to provide the custom torque motors needed for this sensor system.

  • Auxiliary Unit Fuel Pump

    In the control of gas turbine engines used in aircraft auxiliary power units (APU) that must operate at tens-of-thousands of rpm, fuel pump frequency response and reliability are two key design parameters.

    Allied Motion engineers, working closely with the turbine manufacturer of this gerotor-type fuel pump, optimized the parameters of the pump motor, an Allied Motion Megaflux brushless torque motor, resulting in an economical solution that exceeded performance and reliability goals.

  • Bionic Prosthetic Arm

    As part of a DARPA program, an Allied Motion customer developed a new anthropomorphic prosthetic limb that gives patients improved, dexterous control of a prosthetic arm and hand, including a sense of touch.

    Allied Motion worked with our customer to incorporate 17 different Allied motors (PerformeX and Megaflux) in the joints and fingers of the arm, giving this marvel the size, weight, and strength of a human arm.

  • Bionic Prosthetic Knee

    Allied Motion’s work with bionic limb manufacturers – contributing our expertise in small, efficient motors – helps them develop advanced powered prosthetics.

    One example is the Power Knee, the only active prosthesis for above-knee amputees. It employs sophisticated sensor and computation technology plus Allied’s brushless torque motors to give knee amputees, whether the result of combat or other reason, the ability to move more naturally and engage more normally in their daily activities.

  • Dual-Arm Military Robot

    Shown here mounted on the Talon mobile base is a dual-arm robotic manipulator system that is capable of lifting 110 lb (50 kg) and handling a myriad of field missions with humanlike handling abilities.

    Each arm assembly utilizes Allied Motion brushless torque motors to achieve 20 degrees of freedom, giving the arm unmatched dexterity. The arm has a load capacity of 50+ lb (22.7 kg) but a total mass of only 16 lb (7.3kg).

  • IED Disposal Military Robot

    Improvised Explosive Device (IED) disposal robots perform a critical role on today's battlefield. These robots need to be extremely rugged and reliable yet lightweight and easy to maintain in the field.

    Allied Motion’s engineers developed versions of our Quantum and frameless HT servo motors for the propulsion and arm axes of an IED search and disposal robot. Allied's design team optimized the motors in order to maximize torque production at lower speed and give the robots reserve power for climbing uneven terrains and rock strewn slopes.

  • JSOW Missile Seeker Head

    Allied Motion engineers designed a high resolution motor-encoder, limited-angle actuator to meet the extremely demanding requirements of modern smart standoff weapons such as the JSOW missile shown here.

    The Allied Motion custom actuator positions an infrared imaging seeker, a critical part of the weapon’s precision autonomous guidance system. The actuator includes an 18-bit absolute encoder and limited-angle brushless torque motor. The encoder has a high bandwidth 2000 Hz (word rate) serial interface for high resolution and high speed positioning.

  • Mid-Range Munition Guidance System

    The Mid-Range Munition (MRM) is a precision guided munition fired from a tank. The MRM will autonomously attack battlefield targets with pinpoint accuracy at beyond line-of-sight ranges of 8+ km (5+ miles).

    Allied Motion engineers developed special motor-encoder units for the MRM capable of withstanding very high g-forces. The motors control the motions of an “eyeball” seeker head platform nestled in the nose of the MRM projectile.

  • Mobile Remotely Operated Weapons System

    The CROWS (Common Remote Operated Weapons Station) weapons turret allows a gunner to remain protected inside his vehicle while accurately operating a computer-stabilized, laser-aimed weapon.

    Allied Motion's Megaflux torque motors power three sets of azimuth and elevation axes in the system, while a housed Quantum servo motor powers the weapon's cocking actuator.

  • Mobile SATCOM Motion System

    Broadband communications with on-the-move vehicles on land, at sea, or in the air, are now a reality thanks in part to advanced motion systems that enable very accurate satellite tracking, even as vehicles experience high dynamic levels of motion and vibration.

    Allied Motion’s frameless Megaflux torque motors enable tightly integrated yaw, pitch and roll axes in SATCOM antenna systems. Mated servo drives are also integrated with the motors in some cases making for extremely compact designs.

  • Multi-Mission Military Robot

    Accommodating multiple heavy payload types, and able to perform multiple mission types (explosive ordnance disposal, route clearing, reconnaissance, and more), the Warrior robot rapidly negotiates rough terrain and even climbs stairs while handling payloads up to 68 kg.

    Allied Motion supplies rugged frameless brushless torque motors for this unique robot. They have reliably powered the Warrior through its many missions.

  • Pilot Cooling System Pump

    Military helicopter pilots can be equipped with special flight suits that incorporate microclimate cooling. Cooling fluid is pumped through the suits by a special pump system driven by a brushless DC motor, keeping the pilot's body temperature at near normal in harsh environmental conditions.

    Allied Motion helped the pump and cooling unit manufacturer achieve required system reliability with a compact, custom KinetiMax brushless DC motor solution. Integrated drive electronics in the motor keep connections to a minimum, and the specially designed housing has an IP54 protection level.

  • Space Station Experiment Module

    Allied Motion engineered a large custom 560 mm (22 in.) diameter torque motor with encoder for the International Space Station. The motor was designed to power a 2.5 m (8.2 ft) diameter centrifuge rotor capable of providing artificial gravity levels ranging from 0.001 to 2 g. The intended application of the 1875 kg (2 ton) centrifuge was experimentation in microgravity using such diverse objects as small animals and semiconductor crystals.

  • UAV Gimbal Motion Control

    Advanced micro-gimbals with high performance inertial stabilization technology are found on both land-based and aerial platforms such as military UAVs like the Predator. The full motion EO imager system employed in many of these unmanned platforms attains continuous pan, + 40°/-220° tilt and 200°/sec slew rates by utilizing custom-designed Allied Motion Megaflux brushless torque motors.

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