槳葉減擺器 的英文怎麼說
中文拼音 [jiǎngyèjiǎnbǎiqì]
槳葉減擺器
英文
blade damper-
Among others, one method to solve this problem is to install lead - lag dampers. the conventional configuration for installing dampers is to put them between blades and hub. in 1990s, eurocopter began to use the inter - blade dampers in ec155 which means to put every damper between two adjacent blades
傳統的減擺器布置是槳葉-槳轂式;上個世紀90年代，歐直公司開始在ec155上使用葉間減擺器，減擺器不是布置在槳葉和槳轂之間，而是布置在相鄰兩片槳葉之間。The flight test of ec155 tells us that inter - blade dampers can work very well in stabilizing the system ; another advantage of this configuration is it can make the hub system simpler and reduce the drag of air to the hub which is very important for helicopters with 4 or more than 4 blades
Ec155的飛行試驗證明，這種減擺器布置方式對提高穩定性效果明顯;這種布置方式的另外一個優點是可以簡化槳轂，降低其氣動阻力，對多槳葉（四片和四片以上）直升機有重要意義。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/機體耦合動穩定性，一般採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下對擺振器阻尼的不同需求。Damping was then determined via exciting the equation at the critical frequency to get the transit decay which was then analyzed with the moving - block method. in chapter 4, the nonlinear dynamic equation of rotor - body system with inter - blade dampers ( taking all possible attachment offsets into consideration, spanwise offset, vertical offset and in - plane offset ) was modeled
本文重點推導了帶葉間減擺器（減擺器帶三個外伸量:展向，垂向和旋轉方向）的旋翼/機體耦合系統的非線性動力學方程，針對該方程提出了一種改進的多槳葉坐標變換方法。分享友人