HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
paddlej
User Rank
Iron
Excellent post and hydraulic pumps
paddlej   1/9/2012 10:53:59 AM
NO RATINGS
Excellent post. I want to further support the importance of properly sizing the hydraulic pump for the machine. An inproperly sized pumped, as most of you know, can cause all sorts of expensive problems.

William K.
User Rank
Platinum
Are hydraulics the way to improve?
William K.   10/14/2011 10:58:12 PM
NO RATINGS
HYdraulics may be more efficient than some gearboxes, but in many cases the better efficiency would come from being 100% electric everything. What hydraulics can do very well is put the most energy in  a small place, and a cylinder will live well even if you stall it So there is a time and place where hydraulic power is the best choice, but it is not everywhere. Most time changing to hydraulics is not done for efficiency.

SparkyWatt
User Rank
Platinum
Re: Excellent write up of Hydraulics
SparkyWatt   10/13/2011 10:34:32 AM
NO RATINGS
Let's be clear here.  This article argues that hydraulics are more efficient than GEARBOXES, not electric motors.  Most hydraulics are powered by electric motors in the first place, and I am quite sure that a high efficiency direct drive brushless motor is more efficient than the induction motors usually used for hydraulics.  However, if you have a gearbox in the drive train, you often lose 40% to the gearbox, and his points about bulk and weight are still well taken in certain applications.  However, it is important that we think clearly about where the inefficiencies are or we will solve the wrong problem.

Jack Rupert, PE
User Rank
Platinum
Re: Excellent write up of Hydraulics
Jack Rupert, PE   10/12/2011 1:37:13 PM
NO RATINGS
Yes, excellent write up.  Sometimes going back to the simpler designs produces a great improvement.  The one issue, though, is that hose breaking is a bit more problematic than a wire.

Ivan Kirkpatrick
User Rank
Platinum
Excellent write up of Hydraulics
Ivan Kirkpatrick   10/12/2011 12:57:14 PM
NO RATINGS
Good posting on this subject.  I appreciate the comparison to electric systems and the benefits to be gained by applying hydraulics.  I have long suspected that the trend to shift as much as possible to electric positioning systems and such might not always be the best approach.



Partner Zone
Latest Analysis
Halloween isn’t just a time for creative costumes. Thanks to the element14 online design community, the holiday this year also brings us a number of creative electronic device design ideas aimed at making your Halloween party a unique experience.
The Arduino is great for connecting with hardware but has a limited user interface. Apple’s iOS devices have a great user interface but are limited when connecting with hardware.
After a year or so of missteps, false starts, retractions, and postponements, inkjet office printer giant Hewlett-Packard has finally revealed just what it plans to do in 3D printing.
On April 15, 2010, President Barack Obama gave a major speech at the Kennedy Space Center in Florida, announcing that the US would send astronauts to Mars by the mid-2030s. But in order to do so, NASA would first need to ramp up its capabilities through missions directed toward "a series of increasingly demanding targets," i.e. asteroids.
Selfies have already ruined your nights out and your social media feeds. Now they're after your breakfast.
More:Blogs|News
Design News Webinar Series
10/7/2014 8:00 a.m. California / 11:00 a.m. New York
9/25/2014 11:00 a.m. California / 2:00 p.m. New York
9/10/2014 11:00 a.m. California / 2:00 p.m. New York
7/23/2014 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.
Nov 3 - 7, Engineering Principles behind Advanced User Interface Technologies
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6


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 Littelfuse
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Copyright © 2014 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service