HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
Greg Stirling
User Rank
Platinum
Optimizing Brushless DC Motors for High-Speed Applications
Greg Stirling   8/30/2011 2:45:30 PM
NO RATINGS
I agree Dr. Norbert, this is some excellent motor design thoery.  Lighter, high speed, more efficient and cooler running motors will be in demand for years to come...

Perhaps electric airplanes or sailplanes are in our future, we could put solar panels on the wings...

SoCalPE
User Rank
Gold
Bearings
SoCalPE   8/30/2011 4:44:16 PM
NO RATINGS
It's interesting to learn how magnetic efficiencies can lead to optimized motor performance.  What about the frame/bearings?  It'd be interesting to read more about the materials used to handle the small, high-speed bearing surfaces, and how heat is dissipated from these support structures.

Ivan Kirkpatrick
User Rank
Platinum
Air Lubricated Bearings
Ivan Kirkpatrick   9/19/2011 4:08:42 PM
NO RATINGS
I understand that a combination of solid film lubricants like MoS2 that sustain the bearing at low speeds and then transition to an air lubrication mode are quite effective at high speeds in reducing bearing losses.  Bearing systems like these can give very long life as long as the air supply is clean and abundant.

Are any of the motors making use of air lubrication? 



Partner Zone
Latest Analysis
On Memorial Day, Americans remember the sacrifices the US armed forces have made, and continue to make, in service to the country. All of us should also consider the developments in technological capabilities and equipment over the years that contribute to the success of our military operations.
Imagine if you could train it from San Francisco to New York faster than flying?
In order to keep in line with safety protocols, industrial networks need to be filtered in a semantic way so that only information related to diagnostics is flowing back to the vendor and that any communications that could be used for remote machine operations are suppressed.
Siemens PLM has launched an online store to help customers search for, compare, and purchase partner-developed apps for its Solid Edge software.
Advanced visualization can depict an entire plant in motion, while also detailing an individual workstation. Individual products can be rendered different for each discipline involved — marketing, engineering, or suppliers.
More:Blogs|News
Design News Webinar Series
5/21/2015 11:00 a.m. California / 2:00 p.m. New York
5/7/2015 11:00 a.m. California / 2:00 p.m. New York
3/31/2015 11:00 a.m. California / 2:00 p.m. New York
6/11/2015 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 18 - 22, Embedded System Design Techniques™ - Mastering the ARM Cortex-M Processor
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.
Next Course June 2nd-4th:
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