|The latest information on CAD/CAM software and
|| December 8, 2010
This recent CAD news came as a shock to many: Daimler AG
announced it is switching CAD providers and moving to NX CAD, which comes from Siemens PLM. So much
for the automotive industry's famed complacency. Starting in the summer
of 2012, Daimler will integrate work from over 20 development centers as
well as major suppliers on a single product-development platform.
Daimler has already been using an in-house program based on Teamcenter
PLM, so the NX move is intended to let the automobile manufacturer
better-facilitate interoperability and digital collaboration, thereby
streamlining new vehicle development and making design and manufacturing
more efficient. Also, see PTC's take on the switch
On a different note, mobile apps were one of the hot topics at
Autodesk University (AU), recently held in Las Vegas. In addition
to keynotes, technology previews, and software classes, AU included an
art gallery which showcased creations done by ten different artists
using SketchBook Pro for the iPad. Users get pretty
creative, as evidenced by the composite sample shown to the right. Also
nifty: an electric bike equipped with Wi-Fi which was designed
in Autodesk Inventor. The bike has a structurally sound, yet
lightweight, unusual arched tubular construction. For more information on goings-on at AU
—Leslie Gordon, Senior Editor, email@example.com
Many of the newer cruising sailboats in the 40-ft-and-up sizes are
built with double headstays in the bow with one roller furling located
behind another. The forward roller-furling stay carries a big Genoa jib.
The next stay aft carries a working jib. Some boats also carry a third
stay aft of the first two as a small blade staysail for storm
conditions. Roller furling makes it easy to change these sails for a
wide range of wind speeds.
During a recent squall, a new 40 footer had her rolled-up double
headstays oscillating violently back and forth perpendicular to the wind
direction, and the stays were shaking hard. This action was
disconcerting to the boat’s owners, to say the least, so we decided to
try to pinpoint the cause. Read the rest of the story
A recent graduate of Cracow University of Technology in Poland has
developed a functional prototype of a vessel that uses a propulsion
device inspired by cephalopod swimming techniques. Developer Michal
Latacz says his “Kalmar” prototype imitates live organism tissue in
moving via a propeller that has undulating “fins” connected by an
The fins have specially designed surfaces (hydrofoils), which are forced
to create an oscillating movement along the ship’s longest symmetry
axis and, therefore, generate a forced fluid flow along the ship’s
hull. The hydrofoils contain beam stiffeners that deliver the energy
from the engine to the membrane and shape the required wave
characteristics. Kalmar uses ”conventional” mechanics to synchronize
the hydrofoil geometry. Read the rest of the story
NEW - Free CD features multiphysics simulations projects
by 950 of your peers|
|At the recent COMSOL
Conferences held in Boston, Paris and Bangalore, over 950 users of
COMSOL Multiphysics presented state-of-the-art
achievements in multiphysics simulation. Included are hundreds of
papers, presentations and animations highlighting applications in
areas such as acoustics, bioengineering, heat transfer, fluid flow,
structural mechanics and more.|
Large OEMs typically use complex supply chains that are five or six
tiers deep and the data file that defines the part to be supplied is the
main communication tool between these tiers. Ideally, all suppliers
would have every CAD package so they could seamlessly accept and work
with native data, obviously an impractical scenario. In practice, many
supplier components are sent to suppliers via files translated into
neutral formats such as IGES or STEP. Translation is rarely perfect,
resulting in the need for substantial remodeling after the fact.
A key need is therefore not simply data transfer, but full
interoperability, such that data from one system can be immediately
reused in another.
Software such as PowerShape 2010 helps support interoperability, in
part, because it uses Parasolid, an industry-standard geometric modeling
kernel. Parasolid is used by more CAD packages than any other kernel.
Also, many other CAD systems can import and export Parasolid’s native
XT format. As such, these packages can exchange XT files without
translation and the associated rework it usually entails. In addition,
PowerShape lets users accept data via translations by manually or
automatically fixing translation errors.
rest of the story
HP has announced the launch of DesignByMany, an
online community which invites designers to overcome challenges
supporting the theme, “Building for the Greater Good.” One
challenge: Create a parametric version of Buckminster Fuller’s
Dymaxion House for the chance to win an HP Designjet 111 Printer. HP has other interesting
new offerings too: Consider the HP ePrint
& Share plug-in for the Designjet, which lets users create
print-ready files with just one click while using AutoCAD. Read the rest of the story
Excel-Lent gear and gearbox design and analysis software was written
in Visual Basic.Net by engineers who also design and manufacture gears
for their own use. According to the company, until now, gear-design
software has been too expensive or complicated for engineers without
specialized knowledge. In contrast, Excel-Lent has a user-friendly
interface that provides defaults and options in accordance with the AGMA
2001 standard (American Gear Manufacturers Association). Read the rest of the story
Pointwise Version 16.04 CFD meshing software comes with a range of
For example, a proprietary surface-meshing algorithm first developed
for Pointwise’s Gridgen software is now available in Pointwise.
Additionally, a new tool lets uses move individual grid points.
The new release also includes annotation entities, printing to PNG,
TIFF, and BMP files, and 11 new or updated CAE software interfaces.
The company’s Gridgen and Pointwise software generates structured,
unstructured, and hybrid meshes and interfaces with CFD solvers such as
Ansys Fluent, Star-CD, Ansys CFX and OpenFoam, as well as many neutral
formats such as CGNS. Read the rest of the story
ENGINEERINGTV.COM IS ALL NEW!
The video site for engineers, EngineeringTV.com has been completely
redesigned and relaunched with an entirely new look and enhanced
functionality. Browse video libraries on specific technology topics or
browse by company brands, by tradeshow, or even by publication-specific
video “playlists.” It is all the same quality editorial content and
cutting-edge technology videos, but with better usability. Check it out
Machine Design's WORLD'S
SMARTEST DESIGN ENGINEER
Players from across the globe are
competing for fun, education, prizes and the ultimate bragging rights.
Thanks to our sponsors for their support of the exciting online
opportunity for engineers! Play
Forest City Gear Inc.
Ringfeder Power Transmission
W. L. Gore & Associates
Precision Plastic Parts:
Developing Components to Meet Project Requirements
Sponsored by: Accumold
Date: December 14th, 2010
Time: 2:00pm ET
OEMs are pushing for the greatest amount of functionality and quality in
the smallest product space possible. These requirements force
engineering teams to work through difficult challenges, many of which
will require precision or micro molded plastic parts. The right
solution doesn’t appear magically. Designers test concepts,
investigate materials, prototype component options and validate
To help designers move through this process, Accumold’s engineers are
presenting a technical webcast on the key issues and caveats OEMs should
understand in working either internally or with outside vendors on a
precision molded solution.
ARCHIVED WEBCASTS AVAILABLE FOR FREE VIEWING
Here for a list of archived Machine Design webcasts.
PROTO LABS CALENDAR
With our First Cut and Protomold services, you get real materials, real
functionality, and real value – Really Fast. And now we are offering
our new 2011 Cool Parts Calendar, specifically designed for
engineers. And it's packed full of tips, industry tradeshow dates and
more! Request a Free Calendar
Creo, a PTC product
For years traditional CAD has been holding you back. Learn how you can
unlock potential like never before with PTC’s new family of design
software – Creo.
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