HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
Greg Herman
User Rank
Blogger
Re: Cost comparisons
Greg Herman   5/3/2013 11:21:52 AM
NO RATINGS
Hi Rob,

In most cases the savings is realized from the longevity of the wire rope isolator. Elastomeric mounts are replaced by wire rope isolators when they fail in order to prevent future downtime and replacement costs.  The wire rope isolators are sized to operate below the fatigue limit of the stainless steel cable, providing theoretically infinite fatigue life.  This, along with the corrosion resistance of the unit provides superior endurance in many applications.

notarboca
User Rank
Gold
Re: Looks SUPER robust - Never seen one before
notarboca   4/30/2013 4:20:10 PM
NO RATINGS
Thanks for the article, Greg.  I had always thought of dampening with elastomer, or hydraulic/pneumatic absorbers.  Learning some thought provoking ideas today.  I can think of a number of application where these could be useful.

William K.
User Rank
Platinum
Re: Cost comparisons
William K.   4/29/2013 2:37:11 PM
NO RATINGS
Rob, I am sure that elasomer isolators arena lot cheaper than the wire rope versions, but that is if only the purchase price is considered. But where the cost of failure is high the wire rope devices suddenly seem to be a far better choice. In addition, they can survive under a leaky hydraulic power unit, while an elastomeric isolator has the elastomer become a very sticky and messy mush, which does not isolate vibration or even hold the power unit in the correct position. At that point the cable isolator became a much less expensive choice.

Pubudu
User Rank
Platinum
Re: Wire rope isolators.
Pubudu   4/29/2013 1:14:29 AM
NO RATINGS
Greg thanks for the article, Actually this is new to me thou you mention it was there for last 30 years in the market.

Kindly let me know (at least some links) the practical application of that wire rope isolator,

William K.
User Rank
Platinum
Wire rope isolators.
William K.   4/26/2013 6:35:19 PM
NO RATINGS
Another benefit not mentioned is that the wire rope isolators are quite resistant to most petroleum products, although I suspect that oil immersion would reduce the damping a bit. But after seeing some rubber shock mounts just sort of melt away, the wire ones look good.

Shelly
User Rank
Iron
Size matters
Shelly   4/26/2013 9:24:21 AM
NO RATINGS
These wire rope isolators are an excellent idea when you have the space to use them, although they do make them small enough to hold on your finger-tip.  If you are working on relatively small products, and size (and weight) matters, elastomers are always considered first, to isolate a small PCB, for instance.  Another option is Lodengraf damping, to absorb higher frequency vibrations.  Vibration isolation is a big business, and there are many options.  It will depend on the application.  Thank you for bringing this option to the forefront.

BobDJr
User Rank
Gold
Re: Looks SUPER robust - Never seen one before
BobDJr   4/26/2013 9:16:55 AM
NO RATINGS
@JimT: Fortunately, before beginning my 30 years as a design engineer in earnest, I served on a Navy command & control ship full of receivers and transmitters.  We had a pair of 5kW AM transmitters that were mounted on these, and those cabinets (IIRC) were really big: about 4 feet by 4 feet at the base and probably 6-7 feet tall.

(Check out the link to ITT Enidine at the end of the article - they make these things.)

Cheers,

Bob

JimT@Future-Product-Innovations
User Rank
Blogger
Looks SUPER robust - Never seen one before
JimT@Future-Product-Innovations   4/25/2013 5:22:26 PM
NO RATINGS
I'm kind of embarrassed to say, after 30 years as a design engineer, I've never seen one of these.  Great idea, for all the points listed by Greg.  Yes, I have had elastomers fail for various reasons (primarily vibration cycling, and extreme low temperatures – even exposure to UV), but these rope isolators really look like a clever way to create a strong, flexible, long-lasting solutions.  Been around for 30 years-?  I didn't notice a fabricator's name mentioned ,,,,,

Rob Spiegel
User Rank
Blogger
Cost comparisons
Rob Spiegel   4/25/2013 11:39:05 AM
NO RATINGS
Hey Greg, if elastomers are gaining on wire rope isolators, what is the savings? Is it considerable? Do the wire rope isolators come with superior endurance?



Partner Zone
Latest Analysis
No, we're not having delusions of grandeur -- this is the weapon of a Jedi Knight. And we're dying to see how it works. Today, we tear down a lightsaber.
There is currently much discussion around the term "platform," which may be preceded by the adjectives "mobile," "wearable," "medical," "healthcare," etc. However, regardless of the platform being discussed, they usually have one key aspect in common: They tend to be wireless. So, why is this one aspect so fairly universal? The answer is convenience.
Everyone has a MEMS story. For most of us it’s probably the airbag that saved our lives or the life of a loved one. Perhaps it’s the tire pressure sensor that alerted us about deflation before we were stranded alone on a dark muddy road.
Bioimimicry is not merely a helpful design tool -- it also encourages designers to think not only about how to solve design problems by imitating nature, but how to make the products, materials, and systems they design more ecologically sound and nature-friendly.
Fully adopting multiphysics simulation software enables companies to optimize cable and systems designs for a wide range of harsh environments.
More:Blogs|News
Design News Webinar Series
3/31/2015 11:00 a.m. California / 2:00 p.m. New York
2/25/2015 11:00 a.m. California / 2:00 p.m. New York
12/11/2014 8:00 a.m. California / 11:00 a.m. New York
5/7/2015 11:00 a.m. California / 2:00 p.m. New York
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
May 4 - 8, Designing Low Power Systems using Battery and Energy Harvesting Energy Sources
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6 |  7


Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.
Last Archived Class
Sponsored by Proto Labs
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Copyright © 2015 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service