| 摘要 |
The rig comprises a vertical electric motor in a shell-type framework carrying a force balance itself supporting either a main rotor in dynamic tests or a complete propulsion assembly with main rotor in endurance tests, or a height extender supporting, on the one hand, an upper shaft line being coupled to a lower shaft line supported in the framework and driven by the motor and, on the other hand, an inverse-thrust rotor mast, driving a hub jig linked to blades mounted inverted so as to exercise a thrust downwards. The mast is linked to the shaft line by a torque meter and is mounted rotating in a bearing supported by a second balance fixed to the height extender. The mast and the upper shaft line are removable with the height extender in order to make the rig multi-purpose and useable for performance, endurance and dynamic tests of helicopter rotors.
|
