tirante torsion and tension

摘要

A laminated tie bar or coupling particularly adapted to interconnect a helicopter rotor arm and rotor blade is provided with a pair of spaced apart end bushings interconnected by an endless belt. A pliable material interposed between the belt and each end bushing provides a bearing surface therebetween which deforms under unequal pressure or load distribution as a result of angular movement of an end bushing causing a bending moment on the belt which deformation redistributes and equalizes the pressure or load imposed on the belt.