dambrosi@grouch.HYWLMSD.WA.COM (Nick Dambrosia) (03/11/89)
Hi, I'm looking for an application and/or a description of how to perform a Torsional Mass Elastic System Analysis on a Hydroelectric Pumping Assembly. Here's a description of the problem: If a motor is trying to spin a pump impeller through a long shaft, it will twist the shaft. A pump impeller having two vanes will give a torsional shock twice every revolution. If the elasticity of the shaft is just right, this torsional shock will amplify until it breaks something. I have specifications for the pumping assembly, but no experience solving this type problem. Any information is appreciated. I would prefer an application that runs on a Macintosh but please don't limit your advice to this hardware. Thanks in advance. Nick D'Ambrosia Apollo Systems Administration Honeywell Inc. Marine Systems Division 6500 Harbour Heights Parkway Everett, WA 98204 (206) 356-3000 x3892 Path: ...uunet!nwnexus!grouch.HYWLMSD.WA.COM!dambrosi