POL-X West, Inc.

Engineering Services for the Transportation & Amusement Ride Industries

 

Yan Bullwheel Finite element Analysis

In response to several cases of cracking found at the connection of “donut” plates to the hubs of Yan fixed grip chairlift bullwheels, POL-X West performed detailed 3-D and 2-D Finite Element Analyses of various bullwheel types to determine which were at risk and which were safe to remain in service.  The models were created in CADKEY and translated into ALGOR for processing.

 

 

 

The 3-D model was used to establish the local forces in the welds of the “donut” plates to the hubs.  These forces were then used in the 2-D analysis to analyze the stresses in greater detail.  The resulting stresses were then compared to ASTM weld fatigue limits and the recommendations for future use of the bullwheel established based on whether or not the stresses were within allowable limits.  In each case, the worst theoretical case of weld configuration was used to insure conservative results.

 

POL-X West, Inc.

Telephone:

001 (775) 882-7797

Fax:

001 (775) 882-8366

Postal Address:

P. O. Box 3612 Carson City, NV 89702 USA

Shipping Address:

4580 Wagon Wheel Rd. Carson City, NV 89703 USA

E-mail:

General Information: info@polxwest.com
Webmaster: info@polxwest.com

Send e-mail to info@polxwest.com with questions or comments about this website.
last modified: 12 January 2007