EFFECT AND CONTROL OF CHATTER VIBRATIONS IN MACHINE TOOL PROCESSES.
Scientific rept. no. 5, 1 Sep-30 Nov 67,
TECHNISCHE HOCHSCHULE AACHEN (WEST GERMANY) LABORATORIUM FUER WERKZEUGMASCHINEN UND BETRIEBSLEHRE
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After examining the systematic errors of frequency response measurements caused by the peaks in the power- and cross power spectra, now in this report the statistical errors due to external noise signals will be analysed. The influence of these external noise signals, which may be fed into the measurement set-up at different input positions, is stated. With help of graphical illustrations the scatter range of the results can be obtained easily. Furthermore a general mathematical procedure is derived by means of this it is possible, to compute the subfrequency responses of a multiple input linear system. Cutting force measurements in wave on wave cutting operations with the further improved test set up show a strong dependency of the frequency response magnitude on the phase angle between the two contours of the chip. Author
- Machinery and Tools