The Difficulties in Axial Hinge Rotation Problem Analysis and Solution of Helicopter Tail Rotor Hub
During ground debugging in an extremely low temperature environment(-44.5 ℃),the tail rotor hub of helicopter experienced axial hinge rotation difficulties.In this paper,the design and manufacturing part analyzed and conducted sufficient experiments on fault phenomena,structural dimension design,and the impact of temperature on part dimensions,and took corresponding measures.These measures had been validated through ground tests and in-stallation flight tests and had achieved good implementation results.
helicoptertail rotor hubaxial hingedifficult to rotate