To improve the stability , one common method is to install dampers at the roots of blades . however , commonly used dampers can hardly meet different demands when helicopter working in different conditions 為提高旋翼/機體耦合動穩(wěn)定性,一般采用在槳葉根部安裝減擺器的方法,但目前常用的減擺器很難滿足直升機不同工作狀態(tài)下對擺振器阻尼的不同需求。