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Hydraulic drives bolster solar field's efficiency, reliability.
Twenty-five miles south of Las Vegas, Nevada Solar One, a new 64-MW
solar thermal power plant, recently went online. Spanning more than 300
acres, it's the world's third largest solar-energy field and will
generate approximately 129 million kW-hr of electricity annually,
reportedly enough to power about 14,000 homes. Instead of the familiar
photovoltaic solar panels, the facility uses 760 parabolic troughs —
holding about 182,000 curved mirrors — to concentrate sunlight on
glass and steel receiver tubes.
Full Article
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A linear dc motor, like a rotating dc motor, generates mechanical
force by the interaction of current in conductors and magnetic flux
provided by permanent rare-earth magnets. It is constructed of a stator
assembly and a slider. The stator assembly serves as the body and
contains a laminated steel structure with conductors wound in transverse
slots. The slider contains one or more sets of magnets, commutation
components, a bearing surface, and its body completes the magnetic flux
path between the magnets.
Full Article
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Resolverbased Servo Positioner
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Model 941 PositionServo Drive measures the position of a motor shaft
within a revolution. Use of an integrated resolver with a
scalable-emulated encoder output gives tight position control and also
works in basic torque and velocity applications. The output scales the
resolution back into the controller and provides 15 options of
positioning resolution.
More Information:
Lenze-AC Tech
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Programmable Electronic
Controllers/Drivers
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The EVDR Series programmable electronic controllers/drivers are
plug-in style, general-purpose controllers for use with proportional
valves with single or dual coils with molded-in Deutsch DT04-2P
electrical connectors. Designed for controlling and optimizing
temperature-activated electrohydraulic-fan drives, the ETDR1 regulates
and optimizes clutch engagement in transmission and PTO applications.
EVDR4–10 controllers are housed in IP67-rated box enclosures for
separate mounting. EVDR4 and EVDR5 units control up to four proportional
valves plus one on/off valve. The EVDR4 has RS-232 communication
capability while the EVDR5 uses J1939 CAN communications. EVDR6, EVDR9,
and EVDR10 are multi-I/O units with J1939 CAN network communications.
The EVDR6 controls up to six proportional or on/off valves; the
multi-output EVDR9 is a slave module for up to nine valves, and the
EVDR10 accepts up to 10 analog or digital inputs. Both the EVDR9 and
EVDR10 can connect to a J1939 Bus.
More Information:
HydraForce
Inc.
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Introducing Engineering TV, an innovative online video
program by engineers for engineers. Twice a week, each 5-8 minute
episode shows cutting-edge technology in
action and looks behind the scenes as today's engineers shape tomorrow's
breakthroughs. Brought to you by the Penton Media Design and Electronics
Engineering groups.
View
Videos
Rev up your interdisciplinary design skills
What happens when a microcontroller turns on a power FET, sending a
current pulse to a motor coil that develops a magnetic field which turns
the rotor shaft, advancing a timing belt that drives a pair of nip rolls
suspended on bearings in a web-processing operation on a form, fill, and
seal machine installed on a potato chip line at a Frito Lay plant in
central California? And how can you be sure that the encoders, prox
sensors, and other feedback devices you plan to use will accurately see
and report every relevant motion, machine state, and process condition?
And will the signals get through the networks fast enough, without being
corrupted, giving the controllers time to execute their algorithms as
intended? It's a lot to think about, and it only scratches the surface
of what many engineers grapple with today. If you happen to be one of
them, then the place for you — where you can find answers and meet
others with similar concerns — is www.Mechatronic-Design.com.
Backed by some of engineering's top information sources including
Machine Design, Electronic Design, Motion System Design, and Power
Electronics, Mechatronic-Design.com is the interdisciplinary engineer's
desktop, toolbox, library, and lifeline in one easily accessible
place.
Find. Learn. Apply.
Mechatronic-Design.com.
Experience National Instruments Technologies From
the Comfort of Your Own Computer!
 With more
than 200 on-demand webcasts, videos, interactive
tutorials and demos available for users of any experience level, it is
easier than ever to learn about the newest products and features
available from National Instruments.
Begin your search here with a collection of
webcasts specifically chosen for design and automation engineers.
CAD Library offers advanced CAD Resources
The Machine Design CAD
Library, includes millions of configurable 2D and 3D CAD models
of
components and assemblies downloadable for easy use in new and existing
designs. Our models are in native CAD formats. No translation
required!
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Sponsored
by:
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UPCOMING IN-PERSON EVENTS
Design-2-Part Shows are America's longest running and most trusted
events for sourcing custom parts and services.
Ten shows covering the country offer OEMs, engineers and purchasing
personnel the opportunity to meet job shops and
contract manufacturers face-to-face.
UPCOMING WEBCASTS
Best Practices for Design Reuse in Product Development
Featuring a special customer presentation by Callaway Cars
Sponsored by PTC
DATE: March 26th, 2008
TIME: 2:00pm ET/11am PT
In this sixty-minute presentation, PTC's Director of MCAD Product
Management, John Buchowski, will discuss how Pro/ENGINEER Wildfire 4.0's
integrated solutions and advanced functionality ensures improved design
reuse, resulting in reduced design cycle times and accelerated
time-to-market. In a special PTC customer feature segment, we will hear
from Pat Hodgins, Chief Engineer of Callaway Cars, as he shares how
Pro/ENGINEER's capabilities have enabled him to achieve rapid design and
development cycles, ensuring their competitive advantage in the design,
development, and manufacture of high-performance vehicles, systems, and
components.
Click here to register!
Two-Shot Silicon and Thermoplastic Molding:
The Innovative Cost Saving Solution for Medical OEM's
Sponsored by Saint-Gobain
DATE: April 2nd, 2008
TIME: 2:00pm ET/11am PT
Medical device designers are facing intense pressure to create
innovative designs and maintain the highest quality over a product's
lifecycle while also being forced to design for lower cost
manufacturing. This is a challenge we recognize, but one that can be
overcome by leveraging the cost savings and benefits of two-shot molding
technology. Saint-Gobain's engineering team will present on two-shot
molding, how this process innovation can provide cost savings, increased
design freedom, and provide the quality and performance you demand.
Click here to register!
Gearmotors: Achieving the Perfect Match
Success through optimized motor & gearbox integration
Sponsored by Groschopp
DATE: April 9th, 2008
TIME: 2:00pm ET/11am PT
How do you select a motor and a gearbox (speed reducer) separately, then
perfectly match them for your OEM application? Is it better to specify
a pre-engineered gearmotor? Does it make a difference?
These are the questions that will be answered in Groschopp's upcoming
webcast. Groschopp engineers Matt Decker and Loren Kamstra will share
tips, tricks and techniques for specifying the most efficient and
cost-effective choices given a variety of application considerations.
Review of actual Case Studies will bring their experiences to life and
reinforce your new motor/gearbox/gearmotor knowledge.
Click here to learn more and register!
2008 Online Manufacturing WebExpo & Conference
Presented by New Equipment Digest and Machine Design
DATE: May 21st, 2008
TIME: 9:00 am - 5:00 pm ET
The Online Manufacturing WebExpo and Conference brings you and your
management team the advantages of a traditional trade show without any
of the travel cost! Participate in a webcast, visit a trade show booth
and pick up valuable literature - all from the comfort of your
office.
Webcasts:
This all day online event will feature a series of "LIVE" Webcasts
covering a broad range of manufacturing-related topics. Tune in to any
or all of the Webcasts. Ask questions during the broadcast, hear what
your peers are asking too. Register today for the series featuring
Parker Hannifin - Tube Fittings Division, AutomationDirect and Bimba
Manufacturing.
Trade Show:
Visit company booths at the virtual exhibition hall where you can learn
about new products, subscribe to newsletters, download white papers or
literature from Sealevel Systems, AutomationDirect, Bimba
Manufacturing, EFD, FactoryMation, Parker Hannifin - Tube Fittings
Division and Strong Hold Products.
Stay for an hour or stay all day - you decide. Without burdensome travel
costs, you can invite your whole management team to view a Webcast or
review product features at company booths.
People who should attend:
All types of Engineers, Plant Managers, Facilities Managers,
Maintenance, Plant Operations, Analysts, Research and Design, VP of
Operation, Managers, Directors, CEO, President, and Safety
Directors.
To register for this free event, visit www.newequipment.com/webexpo
ARCHIVED WEBCASTS AVAILABLE FOR FREE VIEWING
Click Here for a list of archived Machine Design
webcasts.
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April 21 - 25, 2008
Every year the world catches up on the latest technology in Hannover, as
some 200,000 industry professionals travel to Hannover Messe. This is an
opportunity to attract worldwide attention for innovative products and
solutions.
Ten flagship international trade shows attract knowledgeable
professionals from all branches of industry.
More
Information
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LEESON’s new SM2 Vector Series inverters deliver up to 200%
starting torque and control an Inverter rated motor down to 1Hz at full
output torque.
www.leeson.com
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Contact Information
Editorial questions: Julie Kalista
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Machine Design
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