Motion Control

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

QuickSilver Servo Motors Drive Autonomous Vehicles

The design of remotely operated, autonomous battery-powered vehicles places special requirements on motion control systems. High torque at low speeds is needed to climb over obstacles, while higher speed operation is needed for cruise speed. Efficient operation from lower voltages (12V to 48V) reduces battery size and weight requirements, while regenerative drives maximize the operating time and distance by recharging the batteries while braking.

Posted in: Application Briefs, Motors & Drives, Regenerative braking, Batteries, Batteries, Electric motors, Autonomous vehicles, Electric vehicles

Electronic Motion Controller Simplifies Hydraulic Press Controls

What do you do if you’re in the business of producing a wide variety of metal presses to meet special customer requirements? You choose your system components wisely, and flexibility of function plays a large part.

Posted in: Application Briefs, Motion Control, Manufacturing equipment and machinery, Stamping, Metals, Hydraulic control

Maxon Drive Prevents Bottlenecks for Bottle Cap Maker

Maxon’s MCD EPOS integrated power drive was used by a wine and liquor bottling operation to control the cutting of shrink-wrapped film over the bottleneck and cork or cap.

Posted in: Application Briefs, Motion Control, Motors & Drives, Cutting, Manufacturing equipment and machinery, Polymers, Drive-by-wire

Simulated Models Test Design of Space Shuttles and Rocket Engines

Finite element modeling and analysis
Dynamic Concepts
Huntsville, AL

NASA tasked Dynamic Concepts (DCI) with assessing the structural dynamics of the rollout process, whereby the space shuttle orbiter, external tank, and solid rocket booster assembly is moved via a crawler transporter from the Vertical Assembly Building to the launch pad. DCI used Femap finiteelement modeling software from Siemens PLM Software (Plano, TX) to create an integrated model of all the shuttle components, and used Siemens’ NX Nastran to analyze the simulated vibration environment. The analysis helped NASA resolve issues with support structures and determine target rollout speeds that minimized potentially damaging vibration.

Posted in: Application Briefs, Motion Control, Propulsion, Simulation and modeling, Rocket engines, Reusable launch vehicles and shuttles

Universal Joint Carries Power in Surgical Device

Belden Inc., a manufacturer of universal joints, has developed a miniaturized universal joint for a surgical tool developed by Tuebingen Scientific Medical GmbH for minimally invasive surgical applications. The surgical manual manipulator system required a joint to transmit the power from the handle to the connecting shaft.

Posted in: Application Briefs, Motion Control

Linear Rails Bear Weight of New X-Ray Table Apps

Arcoma, one of the world’s leading providers of automatic x-ray equipment, faced the challenge of redesigning one its flagship products, the Arcoma mobile imaging table, because new applications had been developed for the top-selling mobile imaging table.

Posted in: Application Briefs, Motion Control, Ergonomics, Medical equipment and supplies, Performance upgrades, Bearings

Encoder Helps Track Molecular Level Movement

What good is a $100,000 ultra-precision inverted microscope if it can’t hold focus? That’s the problem facing researchers involved in an increasing number of genetic experiments.

Posted in: Application Briefs, Motion Control, Calibration, Microscopy, Microscopy, Product development

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