能動形動吸振器を備えた質量測定装置の試作

概要

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A mass measurement system with an active dynamic vibration absorber is developed. The purpose of the development is to lighten the mechanical setup, and to lower its resonant frequency for performing measurement at lower rotational speeds. In the developed system, a mass to be measured is fixed on a rotating table for introducing some unbalance to the table; it causes the structure to vibrate during rotation. This vibration is eliminated by the absorber, which also works as a measuring device because the mass is estimated from the vibration amplitude of the absorber mass when the structure does not vibrate. For eliminating vibration, a disturbance cancellation control using signals synchronized with the disturbance is applied; it succeeds in eliminating the vibration at any rotational frequencty. The measurement results demonstrate that linearity between the actual and estimated masses is good in the developed measurement system.
一般社団法人日本機械学会の論文
1999-10-25