Analysis of classical flutter in steam turbine blades using reduced order aeroelastic model
In the present paper classical flutter phenomena in LP steam turbine rotor is studied . A reduced order aeroelastic model (ROAM) with acceptable accuracy and fast execution is developed for this purpose. The aerodynamics damping (AD) is estimated using Traveling wave mode (TWM) method. Flow field is...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2018-01-01
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| Series: | MATEC Web of Conferences |
| Online Access: | https://doi.org/10.1051/matecconf/201821115001 |
| _version_ | 1818415182544633856 |
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| author | Prasad Chandra Shekhar Pešek Luděk |
| author_facet | Prasad Chandra Shekhar Pešek Luděk |
| author_sort | Prasad Chandra Shekhar |
| collection | DOAJ |
| description | In the present paper classical flutter phenomena in LP steam turbine rotor is studied . A reduced order aeroelastic model (ROAM) with acceptable accuracy and fast execution is developed for this purpose. The aerodynamics damping (AD) is estimated using Traveling wave mode (TWM) method. Flow field is modeled using Panel method. For the structural part ROM non-linear beam element method (BEM) based FEM structural solver is used. Partitioned based ( loose) coupling approach is adopted to perform aeroelastic (flutter) cosimulation. Both 2D cascade flow and 3D cascade are modeled.The estimated stability parameters are compared with experimental data. Moreover, present ROAM shows significant reduction in computational time. |
| first_indexed | 2024-12-14T11:30:56Z |
| format | Article |
| id | doaj.art-73dfdec37cd44f5bb7168b81cbda806d |
| institution | Directory Open Access Journal |
| issn | 2261-236X |
| language | English |
| last_indexed | 2024-12-14T11:30:56Z |
| publishDate | 2018-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | MATEC Web of Conferences |
| spelling | doaj.art-73dfdec37cd44f5bb7168b81cbda806d2022-12-21T23:03:17ZengEDP SciencesMATEC Web of Conferences2261-236X2018-01-012111500110.1051/matecconf/201821115001matecconf_vetomacxiv2018_15001Analysis of classical flutter in steam turbine blades using reduced order aeroelastic modelPrasad Chandra ShekharPešek LuděkIn the present paper classical flutter phenomena in LP steam turbine rotor is studied . A reduced order aeroelastic model (ROAM) with acceptable accuracy and fast execution is developed for this purpose. The aerodynamics damping (AD) is estimated using Traveling wave mode (TWM) method. Flow field is modeled using Panel method. For the structural part ROM non-linear beam element method (BEM) based FEM structural solver is used. Partitioned based ( loose) coupling approach is adopted to perform aeroelastic (flutter) cosimulation. Both 2D cascade flow and 3D cascade are modeled.The estimated stability parameters are compared with experimental data. Moreover, present ROAM shows significant reduction in computational time.https://doi.org/10.1051/matecconf/201821115001 |
| spellingShingle | Prasad Chandra Shekhar Pešek Luděk Analysis of classical flutter in steam turbine blades using reduced order aeroelastic model MATEC Web of Conferences |
| title | Analysis of classical flutter in steam turbine blades using reduced order aeroelastic model |
| title_full | Analysis of classical flutter in steam turbine blades using reduced order aeroelastic model |
| title_fullStr | Analysis of classical flutter in steam turbine blades using reduced order aeroelastic model |
| title_full_unstemmed | Analysis of classical flutter in steam turbine blades using reduced order aeroelastic model |
| title_short | Analysis of classical flutter in steam turbine blades using reduced order aeroelastic model |
| title_sort | analysis of classical flutter in steam turbine blades using reduced order aeroelastic model |
| url | https://doi.org/10.1051/matecconf/201821115001 |
| work_keys_str_mv | AT prasadchandrashekhar analysisofclassicalflutterinsteamturbinebladesusingreducedorderaeroelasticmodel AT pesekludek analysisofclassicalflutterinsteamturbinebladesusingreducedorderaeroelasticmodel |