Research and Development of the Prediction Software for Turning Chatter Stability

doi:10.12068/j.issn.1005-3026.2016.03.015

Abstract

Abstract: In view of the engineering need for predicting chatter with software in metal processing， the hardware and software system for the chatter stability lobe diagram test in the turning process was designed. Some key problems existing in the algorithm of the software were researched. Firstly， the hardware system was built， which was composed of an acquisition card， an acceleration sensor and a modal force hammer. The software system， which was able to obtain FRF (frequency response function) of the tool and stability lobe diagram of a turning machine， was developed. Secondly， the interactive interfaces of acquisition and analysis were designed. The multi-channel high-speed synchronous trigger-acquisition algorithm in FRF testing based on C# language was studied. The class of C# to analyze the chatter stability lobe diagram was developed using the frequency domain analysis method. Finally，the stability prediction of CJ0625 was conducted. The results showed that the predicted results of the software coincide with the experimental results.

Key words: turning, chatter prediction, stability lobe diagram, frequency response function (FRF), trigger-acquisition

CLC Number:

TP311

LIU Yu， LIU Ya-chao， ZHANG Yi-min. Research and Development of the Prediction Software for Turning Chatter Stability[J]. Journal of Northeastern University Natural Science, 2016, 37(3): 373-377.

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