Dear Mr. Chung,

Conveyor Dynamics, Inc. has conducted a number of such studies and have a 100% track record at finding the source of failures in pulley construction which is not capable of carrying the applied loads.

See our website for FEA analysis plus internal codes on triaxial fatigue of pulleys and locking devices.

We are specialist in static and dynamic analysis.

See contact details below. Please send to the attention of:

Mr. Lawrence Nordell ■

Mr. Chung.

Advanced Conveyor Technologies (AC-Tek) would be happy to assist you in your needs.

We have extensive experience in data acquisition and field measurements and have published several papers on the subject. We are also experts in conveyor systems, specializing in mechanical design and dynamic analysis using our “Sidewinder” conveyor design software.

My colleague, Mr. Ryan Lemmon, has extensive experience designing pulleys using both 2-D axis-symmetric finite element modeling, as well as advanced 3D FEA methods. This includes non-linear load distributions, details of the hub and locking device, filets and weld areas, and full 3D fatigue analysis.

We have developed a fully parametric pulley input/output program using the latest ANSYS FEA software that is both easy to use and accurate. Between the 2D and 3D models we personally prefer the 2D axis-symmetric model as it runs faster, give the same accuracy as the 3D model, and is easier to visualize the fatigue stresses. Getting the stresses on a 360 degree basis is also easier. However, both methods give almost identical results for the same mesh size.

Please visit our web site at www.actek.com for more information and feel free to drop me an E-mail if you are interested in having us help you out!

David Kruse

Advanced Conveyor Technologies Inc (AC-Tek)

19415 594th Ave

Mankato, MN 56001

507-345-5748

kruse@actek.com ■