A study of band saw vibrations

✍ Scribed by C.D. Mote Jr.

• Publisher: Elsevier Science
• Year: 1965
• Tongue: English
• Weight: 618 KB
• Volume: 279
• Category: Article
• ISSN: 0016-0032
• DOI: 10.1016/0016-0032(65)90273-5

✦ Synopsis

Band saw flexural natural frequencies decrease continuously with increasing band velocity at a rate dependent upon the pulley mounting system--minimum if the band is allowed to extend under the dynamic loading with the initial static load held constant, and maximum if the band length is fixed. The Galerkin and the flexible band solutions provide bounding fundamental frequency approximations that are simple and accurate.

Small periodic band tension variations may induce a large amplitude equilibrium as in the case of the classical string. However, the most probable occurrence of instability is not the classical string subharmonic (fundamental frequency equals 1/2 tension excitation frequency), but occurs at two other excitation frequencies that depend upon the band velocity and pulley mounting system. A Study of Band Saw Vibratio'~s Po ~3 o~l t~l pl /~ c ~1 pl fl~ = pAp1 Band tension variation Constant (0 ~ v ~ 1) a=l-y Natural frequency ~ 1/2 Band tension variation frequency p Mass density