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Test Rig for Evaluating Active Turbine Blade Tip Clearance Control ConceptsThe objectives of the research presented in this viewgraph presentation are to 1) Design a mechanical ACC system for HPT tip seal clearance management; 2) Design a test rig to evaluate ACC system concepts. We have focused our efforts on designing mechanical ACC systems that articulate the seal shroud via mechanical linkages connected to actuators that reside outside the extreme environment of the HPT. We opted for this style of design due to a lack of high temperature/low profile actuators that are presently available. We have also selected multiple hydraulic actuators for this first generation ACC system. Fuel-draulic actuators are already a well established technology.
Document ID
Document Type
Conference Paper
Lattime, Scott B.
(Ohio Aerospace Inst. Brook Park, OH, United States)
Steinetz, Bruce M.
(NASA Glenn Research Center Cleveland, OH, United States)
Robbie, Malcolm G.
(Analex Corp. Brook Park, OH, United States)
Erker, Arthur H.
(Analex Corp. Brook Park, OH, United States)
Date Acquired
September 7, 2013
Publication Date
September 1, 2004
Publication Information
Publication: 2003 NASA Seal/Secondary Air System Workshop, Volume 1
Subject Category
Instrumentation And Photography
Distribution Limits
Work of the US Gov. Public Use Permitted.

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IDRelationTitle20040182396Analytic Primary2003 NASA Seal/Secondary Air System Workshop
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