The Microphone Feedback Analogy for Chatter in Machining

Figure 5

(a) Stability prediction as a function of distance between the speaker and microphone, , and the audio system gain, (arbitrary units, a.u.). The solid lines indicate the stability boundaries (unstable above). (b) Squeal frequency, , prediction as a function of (solid line). Experimental results are shown as open circles.

(a)

(b)