Motion Control

Robots and Vision Combine for Accurate Sheet Metal Cutting

In the general construction industry, many different parts are cut from sheet metal and then welded together on a large machine or vehicle. The trouble arises when the sheets are placed on the cutting table; the larger and heavier they are, the more difficult they are to position on the table. Without proper alignment, the sheet is likely to be cut outside acceptable tolerances, which results in waste and has a negative impact on the welding process. When sheets vary along the X, Y, and Z axes, the issue of exact positioning becomes even more problematic.

Posted in: Application Briefs, Motion Control, Calibration, Imaging, Imaging and visualization, Imaging, Imaging and visualization, Cutting, Robotics, Metals, Construction vehicles and equipment

Crew Test Module Provides Launch Escape System

New Shepard rocket-propelled vehicle

Blue Origin
Kent, WA

Blue Origin has received funding from NASA’s Commercial Crew Development (CCDev) initiative to develop a composite crew test module and a launch escape system for its commercial spaceflight vehicle. The New Shepard system is a rocket-propelled, vertical-takeoff, vertical-landing vehicle designed to routinely fly multiple astronauts into suborbital space. In addition to providing the public with opportunities to experience spaceflight, the New Shepard system will also provide frequent opportunities for researchers to fly experiments into space and a microgravity environment.

Posted in: Application Briefs, Motion Control, Test & Measurement, Rocket engines, Evacuation and escape, Spacecraft

Removing Digestive Tumors With a Therapeutic Endoscopy Teleoperation Robot

Endo Tools Therapeutics (ETT) is a medical device company based in Brussels, Belgium that was established in 2008. The company was formed after an innovative research project started in 2004 at Erasme Hospital (Université Libre de Bruxelles) and the faculty of engineering (Beams department, Université Libre de Bruxelles), based on the need for gastroenterologists to have more degrees of freedom when maneuvering an endoscope.

Posted in: Application Briefs, Motion Control, Diseases, Medical equipment and supplies, Surgical procedures, Robotics

Motion Components Optimize Performance of Liquid Chromatography System

Pricing pressures, intense competition, and strict regulatory demands are challenging scientists and researchers in the fast-growing, highly-regulated pharmaceutical, life science, biochemical, industrial, and environmental industries to make important breakthroughs faster and more efficiently.

Heightened productivity in scientific labs has become paramount for companies to succeed. Waters Corporation, a manufacturer of high-performance liquid chromatography instruments, mass spectrometers, and thermal analyzers and rheology instruments, understands this pressure first-hand. As a major supplier to analytical laboratories around the world, Waters is known for its constant commitment to providing innovative solutions that help customers better understand the secrets of chemistry and of life itself.

Posted in: Application Briefs, Motion Control, Test equipment and instrumentation

Vibration Isolators Supplied for James Webb Telescope Testing

Vibration isolators
Minus K® Technology
Inglewood, CA

Minus K Technology was chosen by ITT Space Systems, LLC, a subcontractor to Northrop Grumman Corp., to provide vibration isolators for the ground testing of the James Webb Space Telescope (JWST) at NASA s Johnson Space Center (Houston, TX). The JWST will be placed in a vacuum chamber at Johnson Space Center, and supported by a set of custom vibration isolators.

Posted in: Application Briefs, Motion Control, Vibration, Vibration, Test equipment and instrumentation

Electro-Hydraulic Motion Controller for Earthquake Simulation

How do you test the behavior of different soil structures in an earthquake? Obviously, large earthquakes don’t happen often, and they certainly don’t happen on cue. The solution, of course, is to model earthquakes in a laboratory environment. And that’s exactly what is being done by the Center for Geotechnical Modeling at the University of California, Davis. Since it’s not economical to simulate the forces of an earthquake on fullsize soil structures such as one would find beneath a real bridge or large building, physical models of much smaller size are used. In Figure 1, for example, is a model of the San Francisco Bay Area Rapid Transit transbay tube that was recently tested in Davis1.

Posted in: Application Briefs, Motion Control, Computer simulation, Weather and climate, Electrohydraulics

Connector Improves Reliability, Cuts Cost on Engine Production Line

HARTING North America was recently asked to solve some of the problems associated with power distribution and motion control on a vehicle manufacturer’s long conveyor and engine block production line. The line’s system integrator needed to reduce installation costs to be competitive with other potential suppliers, and the end customer was looking for higher reliability and ease of maintenance.

Posted in: Application Briefs, Motion Control, Connectors and terminals, Connectors and terminals, Production, Engines, Reliability, Reliability

Rotary Motors Customized for Telescope Spectrometer

SQUIGGLE® custom rotary piezoelectric motors
New Scale Technologies
Victor, NY

The Wide-Field Multi Object Spectrometer (WFMOS) is a ground-based astronomical instrument that is scheduled to be commissioned on the Subaru Telescope on Mauna Kea, Hawaii in 2013. The WFMOS, along with corrective optics, will be mounted in place of the secondary mirror of the telescope. An array of NASA Jet Propulsion Laboratory’s Cobra fiber positioners will feed light from a 1.5-degree field of the sky to a visible spectrometer, for red shift observations of 2,400 cosmological targets simultaneously. The light will be transferred to the spectrograph using 2,400 f/2.4 fibers with 107 μm cores.

Posted in: Application Briefs, Motors & Drives, Spectroscopy, Spectroscopy, Customization, Electric motors, Rotary engines

Delta Motion Controller Helps ADI Improve Automotive Chassis Testing

There’s a science to testing metal structures for rigidity and performance under stress. The development of new testing methodologies is continuing at a fast pace, aided by innovations in supporting technologies. For example, motion controllers have evolved to support special capabilities for exerting real-world forces on structures that can deliver, in a matter of hours or days, the loads and movement that assemblies would otherwise encounter in a whole lifetime of use. And motion control electronics connected to hydraulic or electromechanical actuators can submit assemblies to stresses and measure responses in a “clean” environment that would be difficult or expensive to accomplish in the field.

Posted in: Application Briefs, Motion Control, Electronic control systems, Electronic control systems, Kinematics, Test equipment and instrumentation, Test procedures

Computational Fluid Dynamics Aids Aerospace Apps

Just a few years ago, the use of computational fluid dynamics (CFD) in most aerospace companies was restricted to pure research or troubleshooting problems with existing designs. But in the past few years, newly available CFD tools are fully embedded in the mainstream mechanical design environment and hence much easier, faster and less expensive to use. The trend toward using CFD early stages in the design process has resulted in a large number of new users of this powerful analysis technique. Bell Helicopter technical specialists have developed a set of CFD best practices with the goal of guiding users in following company design guidelines and optimizing the analytical processes. The tools are based on guidelines developed for use by engineers working on propulsion systems. The guidelines are based on the application of Mentor Graphics Mechanical Analysis Division’s FloEFD suite of CFD software used by Bell Helicopter for internal flow simulations.

Posted in: Application Briefs, Motion Control, Computational fluid dynamics, Design processes, Standardization, Rotary-wing aircraft

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