The Effect of Tensioning and Wheel Tilting on the Torsional and Lateral Fundamental Frequencies of Bandsaw Blades

Authors

  • E Kirbach
  • T Bonac

Keywords:

tension stress, frequency prediction, handsaw blades, tensioning, vibration, machining

Abstract

The effects of wheel tilting and saw tensioning on the natural fundamental frequencies of the lateral and torsional vibration of a stationary sawblade have been studied. Tensioning was found to increase the torsional fundamental frequency, but did not affect the lateral frequency. Wheel tilting, on the other hand, influenced both types of vibration by shifting the lateral fundamental frequency downward and the torsional frequency upward.

In predicting the natural frequencies under operating conditions of a bandmill, only the effect of tensioning on torsional vibration has to be taken into account. The effect of wheel tilting was found to be essentially outside the range of tilting angles normally applied in practice.

References

Alspaugh, D. W. 1967. Torsional vibration of a moving band. J. Frank. Inst. 283(4):328-338.nAnderson, D. L. 1974. Natural frequency of lateral vibrations of a multiple span moving bandsaw. Report to the Western Forest Prod. Lab., Environment Canada. 18 pp.nKanauchi, T. 1966. Lateral and torsional vibrations of band saw blade. Hokkaido Univ., Fac. Eng. Bull. No. 40:35-65.nMote, C. D. 1965a. Some dynamic characteristics of band saws. For. Prod. J. 15(1):37-41.nMote, C. D. 1965b. A study of band saw vibrations. J. Frank. Inst. 279(6):430-444.nMote, C. D. 1968. Dynamic stability of an axially moving band. J. Frank. Inst. 285(5):329-346.nSoler, A. I. 1968. Vibrations and stability of a moving band. J. Frank. Inst. 286(4):295-307.n

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Published

2007-06-19

Issue

Section

Research Contributions