High Speed Balancing Applied to the T700 Engine PDF Download

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Languages : en
Pages : 114

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Book Description
This report presents results of T700 power turbine high-speed flexible rotor balancing evaluations and engine test cell diagnostic guidelines for the T53, T55, and T700 engines. The high-speed balancing evaluation was accomplished in two phases. The first phase used assembled T700 power turbine modules, while the final phase used a power turbine rotor assembly that permitted access to all four available balancing planes yet still incorporated the feasibility of high-speed flexible rotor balancing, while second phase of testing evaluated the approach most likely to be used in an overhaul environment. To make the second phase as meaningful as possible, mounting hardware that simulated engine support structures and that would fit in an existing high-speed balancing facility at Corpus Christi Army Depot (CCAD) was designed and fabricated for the balancing study. In both test series, it was shown that high-speed, multiplane flexible rotor balancing of T700 power turbine rotors is feasible.