MR Sönümleyicili Yarı Aktif Ayarlı Kütle Sönümleyicisinin Uyarlamalı Kontrolü

Öz

Bu çalışmada çok serbestlik dereceli bir bina modelinin bozucu girişler etkisindeki cevaplarını iyileştirmek için yarı-aktif ayarlı kütle sönümleyicisi (YAKS) kullanılmıştır. Tasarlanan YAKS’de yarı-aktifliği sağlayan kontrol elemanı olarak Magnetorheological (MR) sönümleyici kullanılmıştır. MR sönümleyiciler uygulanan gerilimle sönüm oranı ayarlanabilen kontrol elemanlarıdır. Uygun bir kontrol algoritmasıyla bu gerilim değerlerini belirlemek mümkündür. MR sönümleyici oldukça nonlineer bir karaktere sahiptir ve çalışması esnasında ısınır. Bu ısınmadan dolayı sahip olduğu parametre değerleri çalışma sırasında değişebilir. Bu yüzden hem nonlineerliklerin hem de parametrik belirsizliklerin üstesinden gelebilecek bir kontrolör kullanılması performansı arttıracaktır. Bu amaçla, bu çalışmada nonlineer uyarlamalı kontrol algoritması tasarlanmıştır. Kontrolcü performansı, pasif kontrol uygulaması olan ayarlı kütle sönümleyicisi (AKS) ile YAKS karşılaştırılarak incelenmiştir. Sonuçlar, uyarlamalı kontrol uygulamasıyla YAKS’nin AKS’den daha iyi performans gösterdiğini kanıtlamıştır.

Anahtar Kelimeler

• Uyarlamalı kontrol
• Yapısal titreşim kontrolü
• MR sönümleyici
• Yarı aktif kütle sönümleyicisi (YAKS)

Adaptive Control of Semi Active Tuned Mass Damper with MR Damper

Öz

In this study, a semi active tuned mass damper (STMD) is used to improve the responses of a multi-degree-of-freedom building model under disturbance input. In the designed STMD, MR damper is employed in the system as a semi active control element. MR damper is a control element whose damping force can be adjusted to applied voltage. It is possible to determine the required voltage with a convenient control algorithm. Required voltage can be determined with a convenient control algorithm. The MR damper has a nonlinear hysteresis character, and its temperature increases during operation. Due to this temperature variance, its parameters may change during operation. Therefore, in order to obtain better performance, the designed controller must be able to overcome both nonlinearity and parametric uncertainties. That's why a nonlinear adaptive control algorithm is designed in this study. For analysis of controller performance, TMD and STMD results are compared. The results showed that the performance of STMD, which is the application of adaptive control better than the TMD situation.

Anahtar Kelimeler

• Adaptive control
• Structural vibration control
• MR damper
• Semi active tuned mass damper (STMD)

Kaynakça

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