Geometric Decomposition and Structural Shape Modification for Turbomachinery Blades Hines, Brian Oliver, James
dc.contributor.department Mechanical Engineering 2019-07-18T06:28:39.000 2020-06-30T06:01:25Z 2020-06-30T06:01:25Z Sat Jan 01 00:00:00 UTC 1994 2014-11-14 1994-09-01
dc.description.abstract <p>An efficient and precise method is presented for the generation of turbomachinery blade models in nominal configuration, i.e., the "cold-shape" given the blade geometry at operating conditions, i.e., the "hot-shape." The shape correction technique has two main components: a preprocessor that generates a plate finite element model of the hot-shape geometry, and postprocessor decomposes the hot-shape blade surface model into a mean camber surface and an associated set of thickness functions. A plate finite element mesh is generated on the resulting mean camber surface. The finite element model is used as input for specialized analysis software for cold-shape correction which provides displacements due to unloading the blade. The postprocessor constructs the nominal cold-shape blade model in two steps. First, the nodal deflections are applied to the hot-shape finite element model to generate a cold-shape mean camber surface. Then the original hot-shape thickness functions are applied to the cold-shape mean camber surface to generate characteristic blade section curves which are lofted to define the cold-shape blade model. Several examples of turbomachinery blades in their hot-shape and resulting geometry are presented to demonstrate the capabilities of the technique.</p>
dc.description.comments <p>This is a conference proceeding from <em>20th Design Automation Conference</em> 2 (1994): 397. Posted with permission.</p>
dc.identifier archive/
dc.identifier.articleid 1113
dc.identifier.contextkey 6360306
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath me_conf/101
dc.language.iso en
dc.source.bitstream archive/|||Fri Jan 14 18:13:36 UTC 2022
dc.subject.disciplines Computer-Aided Engineering and Design
dc.subject.disciplines Manufacturing
dc.subject.disciplines Structures and Materials
dc.title Geometric Decomposition and Structural Shape Modification for Turbomachinery Blades
dc.type article
dc.type.genre conference
dspace.entity.type Publication
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relation.isOrgUnitOfPublication 6d38ab0f-8cc2-4ad3-90b1-67a60c5a6f59
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