October 09, 2018 Volume 14 Issue 38

Motion Control News & Products

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New Sinamics G120X drive series specializes in infrastructure pump, fan, and compressor applications

Siemens has introduced the new Sinamics G120X drive, a simple, seamless, and easy-to-use drive designed for use in pump, fan, and compressor applications in industries such as water/wastewater, HVAC/R, irrigation/agriculture, and in industrial environments. Sinamics G120X has a power range of 1 to 700 hp (0.75 to 630 kW) and can operate in temps from -4 to 140 F (-20 to 60 C) with any standard motor, including synchronous reluctance motors (SRM). It has an integral DC choke that improves harmonics and EMC performance. Sinamics G120X meets all the latest and upcoming UL, NEMA, and EN/IEC standards for 2019 and beyond and offers up to 100-kA short-circuit current rating (SCCR), ensuring enhanced product safety and energy efficiency.
Learn more.


High-speed, high-precision mechanical gantry system

PI has added to its family of precision automation sub-systems with the A-351 MGS, a compact mechanical gantry system engineered to deliver maximum throughput for applications that require controlled precise overhead motion. The gantry is driven by linear motors, and each axis is equipped with preloaded linear bearings. Applications include high-precision 3D printers, assembly, pick-and-place, alignment, inspection, and other industrial automation applications. The A-351 MGS gantry system is designed for high load capacity of 20 kg, twice the amount of its A-341 air-bearing-based sibling. Absolute-measuring linear encoders with nanometer resolution are optional.
Learn more.
See PI automation platforms in action.


New inductive-technology position sensors

Novotechnik's TF1 Series touchless linear position sensors overcome issues with legacy magnetostrictive technology. They are unaffected by strong magnetic fields and metal flakes or filings present in a user's environment. The TF1 Series consists of an inductively coupled position marker attached to a moving rod/piece of the user's application that requires a position measurement and the sensor with operational and programming status LEDs. While operating, LEDs indicate whether the sensor is operating and the marker within measuring range or out of range, as well as indicating results of internal diagnostics for valid output from the sensor. Can also measure speed and temperature.
Learn more.


High-traction robot goes underground

Recent developments in motion control and engineering make it possible to inspect and perform maintenance in compact sewers from the inside. The underground sewer robot is equipped with a swiveling camera and an air-powered milling machine driven by FAULHABER miniature DC motors from MICROMO.
Read the full article.


How to convert from hydraulic to electric high-force linear actuators

Machine designers are converting existing linear motion systems from hydraulic to electric due to the technology's many benefits, but the process involves considering the actual force output of the cylinder, the duty cycle, and the motion profile. Specialists at Tolomatic tackle these points. Includes a very informative video.
Read the Tolomatic blog.


Gain more torque with a cooler-running motor

The slim-design G3718V whisper torque motor from Lin Engineering incorporates a heat-sink design within the stator laminations to allow for passive cooling. When your motor operates cooler, you can increase power to gain more torque without overheating, or you can save energy and still perform at optimal performance. At only 22.8 mm long, this motor produces 25 oz-in. of torque.
Click here to learn more.


Quiet 3-to-1 speed reducers use traction drive technology for 98% efficiency

Rolling Motion Industries (RMI) has released two new traction drive speed reducers. With only six moving parts, they typically outlast conventional gearboxes and speed reducers by a factor of three. The MAR17-1-3.1 Speed Reducer is designed for input speeds up to 3,600 rpm with 10 to 20 in.-lb of torque, and the MAR-23-1-3.1 Speed Reducer is rated for the same speeds but with an input of 20 to 30 in.-lb of torque. As the output speed is reduced by a factor of three, the output torque increases by a factor of three. These high-efficiency speed reducers generate up to 72 percent less heat because they use a special engineered fluid that cools and lubricates the traction drive.
Learn more.


Smart Sensor checks condition of bearings

ABB has launched the ABB Ability Smart Sensor for Dodge mounted bearings, part of the ABB Ability Digital Powertrain, that enables "health checks" for bearings. The smart sensor technology provides an early indicator of any potential problems by assessing the condition of bearings from vibration and temperature information. Eighty percent of bearing failures are lubrication related, and a bearing "running hot" can indicate that proper lubrication procedures are not in place. Monitoring a bearing's vibration can also indicate potential system problems. Prevent downtime on applications such as bulk material-handling conveyors as well as applications in the food-and-beverage and air-handling sectors.
Learn more.


New industrial-grade optical encoder from Quantum Devices

The Model QDH20 encoder provides an improved feedback solution in applications typically using a standard size 20 package. It features superb mechanical and environmental protection. Outputs consist of a quadrature A & B with reference pulse Z as a standard feature. The output can be configured with either the industrial standard 5- to 26-V OL7272 line driver or open collector outputs. Two heavy-duty bearing sets hold the output shaft, and two more bearings (along with an integral flexible spring mount) isolate the working pieces of the encoder from mechanical stresses. Features include 500-kHz fundamental frequency response, high operating temp option (100 C), and resolutions up to 5,000 lines per revolution direct read. Available through Servo2Go.
Learn more.


Single-cylinder engines for combustion research

Southwest Research Institute (SwRI) has designed and manufactured two advanced single-cylinder engines for combustion research and friction analysis, as well as alternative fuel, wear, optical, crank offset, and bore-to-stroke relationship studies. The engines, one for light- and medium-duty applications and one for heavy-duty applications, can accommodate either multi-cylinder or single-cylinder heads through a custom cylinder barrel and head support shelf. They include several unique patent-pending innovations, including mechanisms that adjust compression ratios and crankshaft offsets without the need for disassembling the engine. Optical access, dynamic cam phasing, secondary balancers, and floating liner devices can be added to the standard configurations. Specs available in online "Single-Cylinder Research Engine" flyer.
Click here to learn more.


Hybrid gantry stage provides precision XY/XYZ motion with linear motors, air bearings, and ball bearings

PI's new A-341 hybrid gantry XY/XYZ positioning stage provides the framework for controlled precise overhead motion that is often sought after for 3D printing, assembly, pick-and-place, alignment, inspection, and industrial automation applications. The A-341 HGS hybrid gantry is designed to combine maximum throughput with smooth and highly accurate motion in a compact envelope. It features a unique hybrid bearing design. The cross axis utilizes a frictionless air bearing guiding system, which allows for excellent velocity control, repeatability, straightness, and cleanliness. The lower dual-motor axis uses precision mechanical linear bearings for rigidity and reduced size. This combo offers an overhead gantry motion platform optimized for step and scan applications in the smallest possible form factor.
Learn more.


Micro-brakes for precise motion control applications

The ultra-compact 112 Model Electromag-netic Micro-Brakes from Miki Pulley ensure fast response in high-torque, demanding applications. The simple design features a stator with integrated mounting flange, proprietary composite friction liner, and armature complete with ring plate spring and hub. These brakes halt rotation mechanically by utilizing an electromagnetic field to create mechanical friction. With fast response, the brake's armature engages the stator when the coil is energized. A constant-force plate spring transfers torque to the rotating brake body, halting all motion.
Learn more.


Electric high-force linear actuator choices: Ball vs. roller screw

Many applications require high-force linear actuators -- from moving equipment in a foundry to powering a press in metal forming to guiding heavy logs in a sawmill. Whatever the application, a machine designer is faced with a choice: whether to specify a ball or roller screw in the electric high-force linear actuator. Learn how to make the best decision for your application.
Read the Tolomatic blog.


Using SmartMotor data to diagnose linear actuator performance problems

Effective troubleshooting of a motion control system problem can be a daunting and time-consuming process, even for seasoned automation professionals. However, the Moog Animatics SmartMotor fully integrated servo, with built-in controller and firmware, is constantly monitoring a variety of operating parameters. This case study investigates how that data can be used to quickly and effectively troubleshoot and resolve a motion control system problem.
Read the Moog Animatics article.


Advantages of electroformed metal bellows

Servometer metal bellows manufactured using our patented electro-deposition process create flexibility, protection, motion, and balance for systems requiring precise, repeatable results. This exclusive manufacturing technology produces electroformed bellows that offer unique characteristics such as high-strength but lightweight construction and custom engineered geometries. Learn more by viewing our "Electroforming Basics of Miniature and Specialized Components" white paper.
Read the white paper (no registration required).


Preparing for future battlefields: Army lays out must-have capabilities for its Next Generation Combat Vehicle

An M2A3 Bradley Fighting Vehicle crew changes position on the range during gunnery training at the Doña Ana Range Complex, N.M., Aug. 3, 2018. The Army is developing a new Next Generation Combat Vehicle as part of a concerted modernization strategy. [Photo Credit: U.S. Army photo by Winifred Brown]

 

 

 

 

By Bob Purtiman, U.S. Army NGCV Cross-Functional Team

While our current combat fleet is composed of very capable vehicles, these vehicles have been in the inventory for decades and their ability to overmatch peer capabilities in close combat is starting to wane. As the Army prepares for future combat operations, it needs new platforms, with future growth margins, to maintain our ability to dominate the battlefield.

This is a challenge for the Next Generation Combat Vehicle Cross-Functional Team, or NGCV CFT, to solve. The NGCV CFT was established as part of the Army's modernization strategy and is currently led by Brig. Gen. Ross Coffman. The team consists of hand-selected military and civilian personnel, who are charged with narrowing or closing Cross Domain Maneuver capability gaps.

The team is well supported by Program Executive Office-Ground Combat Systems and Research, Development and Engineering Command leaders, and representatives. The CFT serves as the primary Army integrator for Under Secretary of the Army/Vice Chief of Staff of the Army and Army Requirements Oversight Council decision for all supporting analysis, modeling, simulation, and technical demonstrations. The NGCV CFT director, on behalf of the USA/VCSA, synchronizes the capability development process, and then rapidly transitions the requirement to a leader-approved capability into the Army Acquisition System.

"The Army must maintain combat vehicle overmatch in close combat against current threats while taking actions necessary to ensure overmatch through 2050 and beyond," said Coffman. "The changing character of warfare and the acceleration of technology development drives changes in how the Army develops, delivers, employs, and sustains mounted close combat capabilities."

The ongoing efforts of the Next Generation Combat Vehicle Cross-Functional Team will be the focus of a Warrior's Corner presentation on Tuesday, Oct. 9 from 9:30-10:10 a.m. Eastern time as part of the Association of the United States Army annual meeting in Washington, D.C.

The current NGCV CFT portfolio encompasses the Armored Multi-Purpose Vehicle, or AMPV; Mobile Protected Firepower, or MPF; Optionally Manned Fighting Vehicle, or OMFV; future robotic combat vehicles, or RCV; and the next generation main battle tank.

The AMPV and MPF are well on their way through the acquisitions process -- the AMPV is in Limited User Tests, and the Joint Requirements Oversight Council has recently approved the MPF's Capabilities Development Document. The team's current focus in on the OMFV, which will replace the Bradley Fighting Vehicle, while also overseeing the maturation of robotic combat vehicle and main battle tank technologies.

In future close combat formations, units equipped with NGCV must maneuver effectively in unrestricted, restricted, and dense urban terrain. The NGCV-OMFV will be designed to maneuver Soldiers in the future operating environment to a position of advantage to engage in close combat and deliver decisive lethality during the execution of combined arms maneuver. NGCV must exceed current capabilities while overmatching similar threat class systems. It must have the following capabilities:

  • Optionally manned. It must have the ability to conduct remotely controlled operations while the crew is off platform.
  • Capacity. It should eventually operate with no more than two crewmen and possess sufficient volume under armor to carry at least six Soldiers.
  • Transportability. Two OMFVs should be transportable by one C-17 and be ready for combat within 15 minutes.
  • Dense urban terrain operations and mobility. Platforms should include the ability to super elevate weapons and simultaneously engage threats using main gun and an independent weapons system.
  • Protection. It must possess requisite protection to survive on the contemporary and future battlefield.
  • Growth. It will possess sufficient size, weight, architecture, power, and cooling for automotive and electrical purposes to meet all platform needs and allow for pre-planned product improvements.
  • Lethality. It should apply immediate, precise, and decisively lethal extended-range medium-caliber, directed-energy, and missile fires in day/night all-weather conditions, while moving and/or stationary against moving and/or stationary targets. The platform should allow for mounted, dismount, and unmanned system target handover.
  • Embedded Platform Training. It should have embedded training systems that have interoperability with the Synthetic Training Environment.
  • Sustainability. Industry should demonstrate innovations that achieve breakthroughs in power generation and management to achieve increased operational range and fuel efficiency; increased silent watch; part and component reliability; and significantly reduced sustainment burden.

The CFT will ensure the Army operating force is equipped with Next Generation Combat Vehicles that overmatch pacing threats with decisive lethality, survivability, tactical mobility, and reduced logistical burdens. These vehicles, when combined with trained and technology-enabled crews, are essential to the Army's future battlefield success.

"The NGCV effort ties in with the efforts of other CFTs: Soldier Lethality, Network, Assured Positioning, Navigation, and Timing, Future Vertical Lift, and Long-Range Precision Fires," said Col. Warren Sponsler, NGCV CFT deputy director. "The future platform has capabilities which are enabled by assured position, navigation and timing, and resilient networks that will enable future maneuver formations to execute semi-independent operations while conducting cross-domain maneuver against a peer adversary.

"The future operational environment will be increasingly lethal, competitive, complex, and dynamic -- characterized by a high potential for instability and the increased likelihood of close combat in dense urban and congested terrain," Sponsler added. "Our potential adversaries have studied the American way of war and our preference for engaging at extended ranges with greater accuracy. Accordingly, they are developing, and will employ, close combat platforms and weapon systems capable of engaging U.S. formations at equal or greater ranges and with direct fire accuracy equal to our own, coupled with accurate and massive artillery and rocket firepower."

The challenge for the NGCV CFT is to create the requirement that will keep with the junction of instability and disruptive technology that will erode the Army's post-Cold War comparative advantage.

"The end state for the Army is a generation of vehicles that are not only more lethal and survivable than current combat platforms but much smaller, lighter, and more fuel efficient," said Coffman. "The use of critical enabling and potentially disruptive technologies that are identified, developed, and integrated into operationally viable platform subsystems will enable the Army to provide Soldiers the best possible capability for the future."

Published October 2018

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