Invention Grant
US09382803B2 Laminated abutment, a rotor provided with such an abutment, and an aircraft 有权
层压基台,设有这种基台的转子和飞机

Laminated abutment, a rotor provided with such an abutment, and an aircraft
Abstract:
A laminated abutment (10) comprising an inner strength member (11), an outer strength member (12), and an elastomeric member (15) comprising a stack of main layers (20, 30) that are flexible and of secondary layers (40) that are rigid. The stack comprises at least one first main layer (20) and at least one second main layer (30), each first main layer (20) presenting, in a lead-lag plane (PTRA), a first thickness (e1) that varies between a minimum first thickness (e1min) on the pitch-variation axis (AXPAS) and a maximum first thickness (e1max) on the flapping axis (AXBAT), and each second main layer (30) presenting, in a lead-lag plane (PTRA), a second thickness (e2) that varies between a minimum second thickness (e2min) on the flapping axis (AXBAT) and a maximum second thickness (e2max) on the pitch-variation axis (AXPAS).
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