Characterisation and Compensation of Machine Vibrations with Non-Linear Methods

In the field of precision turning, vibration problems may occur which cannot be evaluated using compensation methods based on standard algorithms. This paper gives an overview of the requirements of non-linear algorithms for a use in the field of precision engineering. Examples are given for the analysis of machine vibrations and an active compensation of the dynamic displacement between workpiece and tool in turning process will be demonstrated. The realisation of non-linear algorithms in real-time applications using a standard PC or DSP is discussed.