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Bu çalışmada savaş uçağı koltuklarının yarı aktif titreşim azaltma problemi için Doğrusal Matris Eşitsizlikleri (DME) tabanlı durum geri beslemeli H∞ kontrolcü tasarlanması gerçekleştirilmiştir. Uçağın pistteki taksi hareketi esnasında yoldan gelen uyarıların sebep olduğu, on serbestlik dereceli yarı aktif koltuklara sahip tam uçağın matematiksel modelinin koltuk titreşimlerinin kontrolü ve analizi yapılmıştır. Bu amaçla, yarı aktif koltuklar olarak pasif sönümleyici yerine Manyeto-Reolojik (MR) sönümleyici kullanılmıştır. MR sönümleyici doğrusal olmayan karaktere sahiptir ve sönümleme kuvveti elektromanyetik sargılara uygulanan gerilim ile değişir. MR sönümleyicili koltukların performansı DME tabanlı durum geri beslemeli H∞ kontrolcü ile sağlanmıştır. Kontrol yöntemi sistemin pasif hali (MR 0 V) ile karşılaştırılmıştır.
In this study, the H∞ controller is designed based on the DME for the problem of the semi-active vibration reduction of combat aircraft seats. The check and analysis of the seat vibrations of the full mathematical model of the aircraft with semi-active seats of ten freedom degrees, caused by alarms from the road during the taxi movement on the trail, was carried out. For this purpose, the MRI (Manyeto-Reological) is used as a passive dissolver instead of semi-active seats. The MR decomposer has an non-linear character and the decomposer force varies by the voltage applied to the electromagnetic shells. The performance of the MR dissolving seats is secured by the DME-based condition-backed H∞ controller. The control method is compared to the system’s passive state (MR 0 V).
This paper deals with the design of a Linear Matrix Inequalities (LMI) based state feedback H∞ controller for a semi active vibration mitigation problem of fighter jet seats. Ten degrees of freedom detailed full aircraft mathematical model having semi active seats are controlled and analyzed seat vibrations caused by runway excitations during taxiing. For this purpose a Magneto-Rheological (MR) damper is used instead of a passive damper as semi active seats. The MR damper has non-linear characteristics and its damping force varies by voltage which is applied to electromagnetic coil. The performance of seats with the MR damper is controled via LMI based state feedback H∞ controller. The control method is compared with the passive case (MR 0 V).
Field : Mühendislik
Journal Type : Ulusal
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