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LOW-FREQUENCY CHATTER SUPPRESSION USING TUNED MASS DAMPER IN ROBOTIC MILLING
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Low-frequency chatter severely limits robotic milling efficiency. In this paper, tuned mass dampers (TMDs) are introduced to suppress low-frequency chatter based on robotic modal directionality. A TMD model with mounting angle is established, and the suppression effect of TMD on the robotic low-frequency dynamic compliance with different mounting directions is analyzed together with experiments. Then, low-frequency chatter is further suppressed by suppressing side-frequency dynamic compliance. The milling experiments show that the TMD can significantly suppress low-frequency chatter and improve cutting amount, and a better effect can be achieved when TMDs act at both the low-frequency mode and side frequencies.
MM Publishing, s.r.o.
Title: LOW-FREQUENCY CHATTER SUPPRESSION USING TUNED MASS DAMPER IN ROBOTIC MILLING
Description:
Low-frequency chatter severely limits robotic milling efficiency.
In this paper, tuned mass dampers (TMDs) are introduced to suppress low-frequency chatter based on robotic modal directionality.
A TMD model with mounting angle is established, and the suppression effect of TMD on the robotic low-frequency dynamic compliance with different mounting directions is analyzed together with experiments.
Then, low-frequency chatter is further suppressed by suppressing side-frequency dynamic compliance.
The milling experiments show that the TMD can significantly suppress low-frequency chatter and improve cutting amount, and a better effect can be achieved when TMDs act at both the low-frequency mode and side frequencies.
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