 |
Top Stories
1. Cleaner and Greener Turbines
2. Up and Running: Energy Engineering
3. Taking KERS to Motorsports and Beyond
Featured Content
1. JetBlue Airways Emergency Landing
|
Cleaner and Greener Turbines
The gas turbine engine has been steady as a rock when it comes to
reliability, but sustainability is another story. The urge to “go
green” that is sweeping the nation has prompted the creation of the
wave rotor combustion turbine, part of a new generation of turbines that
could cut the carbon dioxide emissions of aircraft by as much as 20
percent. And of course it doesn’t hurt that the new turbines could be
15 to 20 percent more efficient, as well.
|
Up and Running: Energy Engineering
Innovative ideas look great on paper, but without a good team of
developers behind them, that’s sometimes about as far as they go. The
idea these days is to use less energy than has been used in the past,
and to use it more competently as well. Mechanical engineers hold the
keys to making this idea into a reality today just as much as they did
when the Western world was first being mechanized – and it’s a good
thing, too.
|
Taking KERS to Motorsports and
Beyond
Kinetic Energy Recovery Systems (or KERS) mean that energy that can
be recovered from braking events. This is intended to promote overtaking
and improved lap time in racing motorsports. However, the developments
involved create high speeds and low torque, which necessitates extremely
high quality gearing. The result is a unit that may eventually prove to
serve track racers and highway cruisers alike.
|
JetBlue Airways Emergency Landing
Flight 292 of JetBlue Airways comes in for an emergency landing
after a malfunction of its front landing gear during retraction after
takeoff. The plane circled for three hours to burn fuel and lighten the
aircraft, and none of the passengers or crew on board were injured. The
front tires, on the other hand, weren’t so lucky.
|
Off-the-shelf bearings
The 384-page B620 Bearing catalog/handbook features over 4,978
off-the-shelf bearings. A 111-page technical section covers
rolling-contact bearings, sintered-metal bearings, and plastic and
nonmetallic bearings. Bearing selection factors, load factors,
tolerancing, sizing, and bearing mounting are also included. The catalog
covers nine product tpes: ball bearings, thrust bearings, sleeve
bearings, needle bearings, roller clutches, guide wheels and rail
systems, linear ball bearings, lined aluminum bearings, and inner and
outer-ring spacers.
More Information:
Quality Bearings &
Components
|
|
FREE eBOOK FROM NYE LUBRICANTS
 Reduce
connector problems simply by applying the right lubricant to contacts.
Learn how connector lubricants protect contacts from corrosion, fretting
and wear to ensure long, trouble-free operation by downloading the FREE
eBook from Nye Lubricants. Get important tips on the factors to consider
in selecting and applying connector lubricants in applications ranging
from cars to machine tools to appliances to aerospace equipment.
|
|
Tool swivel heads
The SRH Series of 180° swivel heads are completely modular and
consist of the tried-and-tested SRU rotary modules combined with two
swivel corners, electric feed-throughs, and media feed-throughs.
Six sizes and 12 torques ranging from 0.9 to 67.8 Nm (0.6 to 50 lb-ft)
are available. The SRH’s electric feed-through is designed to use
digital signals for sensors or simple actuators. EDF feed-throughs
provide greater reliability than the breakage-prone method of routing
cables through the center bore of a rotary actuator.
The media feed-through is directly connected to the mounting surfaces of
the swivel head, and both the swivel head itself and the rotating
grippers can be supplied with compressed air directly without hoses.
More Information:
Schunk Inc.
|
Get connected to Machine Design!
 Visit our Linked-In group to
connect directly with Machine Design and our group of Engineering
professionals. Our Linked In group focuses on providing valuable
information to the Engineering community. We seek to strengthen the
quality of information, relationships, and communication amongst our
readers and members. To become a member Join Now!
Our Machine Design Linked-In group is for:
- Editors
- Engineers
- Students
- Enthusiasts
- And more...join now.
See you inside,
MachineDesign.com
Looking for an engineering job? Find it on our online Engineering
Job board
Post a resume, get alerts about interesting positions as they are
posted, and see what kinds of engineering jobs are hot right now!
Visit the Design Engineer Job Zone
Engineering TV is 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!
|
|
Sponsored
by:
 |
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
Understanding electro-hydraulic application development
Sponsored by EATON
DATE: August 20th, 2008
TIME: 2:00pm ET/11am PT
Learn how the IEC 61131-3 international standard for control programming
is critical for effective implementation of electro-hydraulic systems
and very efficient for the end users. The course will explore the
origins of the standard, demonstrate its relevance to electro-hydraulic
control development and more.
Click here to learn more and register!
ARCHIVED WEBCASTS AVAILABLE FOR FREE VIEWING
Click Here for a list of archived Machine Design
webcasts.
|
|
|
Thank you for reading the Mechanical Monthly Newsletter from Machine
Design.
This email was sent to %%$email%%. You've received this e-newsletter for
one of two reasons:
1) You signed up for it on one of our web sites.
2) You are a reader of Machine Design magazine.
Manage Your Subscription
To quickly unsubscribe from this newsletter, click here Unsubscribe
To subscribe or unsubscribe, to this or any of our newsletters, visit our subscription page.
To CHANGE YOUR EMAIL ADDRESS, visit our subscription page, login with your old
email address, then change your address.
Contact Information
Editorial questions: Jessica Shapiro
Advertising/sponsorship opportunities: Virginia Goulding
216-931-9893
Machine Design
1300 E. 9th St.
Cleveland, OH 44114
©2008 Penton Media, Inc. All rights reserved.
|
|
Subscribe to our RSS feeds