Special Coverage

Converting from Hydraulic Cylinders to Electric Actuators
Automating Optimization and Design Tasks Across Disciplines
Vibration Tables Shake Up Aerospace and Car Testing
Supercomputer Cooling System Uses Refrigerant to Replace Water
Computer Chips Calculate and Store in an Integrated Unit
Electron-to-Photon Communication for Quantum Computing
Mechanoresponsive Healing Polymers
Variable Permeability Magnetometer Systems and Methods for Aerospace Applications
Evaluation Standard for Robotic Research

Custom Brakes Meet the Challenges of Gearless Motor Elevators

Standard braking systems could not meet the difficult speed, energy, and dynamic torque constraints.

A manufacturer of low and high-rise elevators faced a challenge when customers began calling for a flexible elevator to meet the needs of the growing mid-rise, mixed-use building market. The global construction boom of mid-rise buildings can be attributed to several factors. Developers are more apt to build “short” because it requires less capital and the time to get permits approved is reduced considerably, especially in developing countries.

Posted in: Application Briefs, Motion Control, Braking systems, Needs assessment, Product development
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Reducing Inaccuracies in Force/Haptic Feedback Systems

This novel algorithm automatically compensates for the errors introduced by physical factors, enabling the control system to Adjust the applied force accurately.

Researchers at NASA's Armstrong Flight Research Center have developed a new technology to reduce inaccuracies in force/haptic feedback devices and systems. Used at NASA in aircraft simulations for force feedback pilot controls, these systems involve a servo motor applying precise force to a specific point based on very accurate measurements. However, because the force instrumentation often cannot be placed directly at the point of interest, a mechanical assembly is used, linking the force transducer to the target point. Unfortunately, this mechanical assembly introduces inaccuracies due to its own forces of gravity, friction, and inertia.

Posted in: Briefs, Automation, Computer simulation, Mathematical models, Human machine interface (HMI), Aircraft operations, Reliability
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New Products: April 2017 Motion Design

Variable Frequency Drives

Through a new partnership, variable frequency drives (VFDs) from American Control Electronics (South Beloit, IL) will now be offered as a product add-on to Brother Gearmotors’ portfolio of sub-fractional AC gearmotors and reducers. OEMs have access to an optimized VFD for the Brother sub-fractional power range instead of purchasing an offthe- shelf VFD that may not be the best fit for the application. For example, a user buying a sub-fractional HP (1/100th to 1/6th HP) gear motor will not have to choose an off-the-shelf VFD rated for 1/4 HP. ACE’s microprocessor-based VFDs control AC motor speed and torque by varying input frequency and voltage.

Posted in: Products, Motion Control
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DO-178C Best Practices For Engineers & Managers

Practice: We’ve all engaged in it: piano, math, golf, flying… Usually practice involves a modicum of coaching, self-help and repetition. In avionics development, however, there is little time for practice; instead, everything counts. And the result has little margin for error: Schedules, budgets and particularly safety are all on the line. How then can “practice” be reconciled with “avionics development”? The best answer is to understand the breadth of worldwide development and glean the best knowledge and solutions from the aviation ecosystem. Welcome to DO-178C Best Practices.

Posted in: White Papers, Aerospace, Aviation, Software
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Magnetic Fields Enable New Soft Robots

Researchers from North Carolina State University have a found a new way to control robots. The team used magnetic fields to remotely manipulate microparticle chains embedded in soft robotic devices.

Posted in: News, Joining & Assembly, Drug Delivery, Automation, Robotics
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Stray Light Analysis and Design of Optical Imaging Systems

Stray light is an age-old problem for optical systems. Fortunately, software tools available today for the optical designer enable quick and accurate characterization of stray light.

Posted in: On-Demand Webinars, Imaging
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Challenges of 3D Printing Large Metal Aerospace Parts

Learn why Addaero has selected Arcam EBM for large, bulky parts for aerospace applications The applications for metal additive manufacturing are many, but the aerospace sector is one area that is leveraging metal AM for actual production parts. While both laser and EBM have advantages and disadvantages for a given application, Arcam EBM excels in printing larger parts for fatigue applications. Addaero works with leading aerospace companies to supply metal AM parts using both laser and EBM and has first-hand experience of how to best produce parts for a given application utilizing the best suitable technology.

Posted in: On-Demand Webinars, Manufacturing & Prototyping
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Origami-Inspired Robot Can Ride with a Rover

The Pop-Up Flat Folding Explorer Robot (PUFFER) that’s in development at NASA’s Jet Propulsion Laboratory in Pasadena, CA, was inspired by origami. It travels with a rover, and its lightweight design can flatten itself, tucking in its wheels and crawling into places rovers can’t fit.

Posted in: News, Motion Control, Robotics
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Maxwell Time Decomposition Method Accelerates Simulation of Transient Electromagnetic Fields with Intel® Xeon® Processor E5-2697 v4

ANSYS teamed with INTEL to benchmark a new ANSYS Maxwell technology that delivers dramatic speed improvement for transient electromagnetic field simulations. Simulations that previously required weeks of computation time are now completed in a matter of hours. The key software technology is a new algorithm within Maxwell that allows engineers to solve time steps simultaneously as opposed to sequentially.

Posted in: White Papers, Software
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Should Pluto be restored as a planet?

This week’s Question: Last week at the Lunar and Planetary Science Conference in Houston, Johns Hopkins University's Kirby Runyon reignited an often fierce debate within the scientific community: Pluto’s planetary status.

Posted in: Question of the Week, Physical Sciences
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