THE DYNAMIC MODELLING OF A SPUR GEAR IN MESH INCLUDING FRICTION AND A CRACK

✍ Scribed by IAN HOWARD; SHENGXIANG JIA; JIANDE WANG

• Publisher: Elsevier Science
• Year: 2001
• Tongue: English
• Weight: 610 KB
• Volume: 15
• Category: Article
• ISSN: 0888-3270
• DOI: 10.1006/mssp.2001.1414

✦ Synopsis

To improve the current generation of diagnostic techniques, many researchers are actively developing advanced dynamic models of gear case vibration to ascertain the e!ect of di!erent types of gear train damage. This paper details a simpli"ed gear dynamic model aimed at exploring the e!ect of friction on the resultant gear case vibration. The model incorporates the e!ect of variations in gear tooth torsional mesh sti!ness, developed using "nite element analysis, as the gears mesh together. The method of introducing the frictional force between teeth into the dynamic equations is given. The comparison between the results with friction and without friction was investigated using Matlab and Simulink models developed from the di!erential equations. The e!ects the single tooth crack has on the frequency spectrum and on the common diagnostic functions of the resulting gearbox component vibrations are also shown.