134 伝達関数特性を考慮した適応制御収束特性の検討(低周波音の解析・改善,騒音・振動評価・改善技術)

抄録

Various structural measures against vibration and noise were taken in a training ship, Oshima Maru. However, an unpleasant sound persisted in the mess hall, where crews take their breaks. In order to reduce the noise, active controllers were investigated. The algorithms were compared under the same conditions to investigate differences in their properties. Simulations for a control system were introduced using plant responses measured from a loudspeaker to a microphone in the mess hall inside Oshima Maru. After investigating the convergence speed in various gradient descent adaptation algorithms, the results were integrated with the actual plant response.