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Analogue adaptive vibration cancellation system for Stirling cryocoolers.

Author(s) : COLLINS S. A., FLOTOW A. H. von, PADUANO J. D.

Type of article: Article

Summary

The system uses a custom-designed multi-axis counterbalance and an analogue implementation of an adaptive feedforward compensator. A non-linearity associated with the counterbalance is modelled, and its effect on the closed-loop system is assessed. In an initial test, the third harmonic of the expander's axial force was cancelled by 22-38 decibels over a wide range of drive frequencies, with little effect on the other harmonics or the lateral vibrations.

Details

  • Original title: Analogue adaptive vibration cancellation system for Stirling cryocoolers.
  • Record ID : 1995-1349
  • Languages: English
  • Source: Cryogenics - vol. 34 - n. 5
  • Publication date: 1994/05

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