Dry Friction Interblade Damping by 3D FEM Modelling of Bladed Disk: HPC Calculations Compared with Experiment
Interblade contacts and damping evaluation of the turbine bladed wheel with prestressed dry friction contacts are solved by the 3D finite element method with the surface-to-surface dry friction contact model. This makes it possible to model the space relative motions of contact pairs that occur duri...
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2021/5554379 |
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| _version_ | 1832566277255725056 |
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| author | Luděk Pešek Pavel Šnábl Vítězslav Bula |
| author_facet | Luděk Pešek Pavel Šnábl Vítězslav Bula |
| author_sort | Luděk Pešek |
| collection | DOAJ |
| description | Interblade contacts and damping evaluation of the turbine bladed wheel with prestressed dry friction contacts are solved by the 3D finite element method with the surface-to-surface dry friction contact model. This makes it possible to model the space relative motions of contact pairs that occur during blade vibrations. To experimentally validate the model, a physical model of the bladed wheel with tie-boss couplings was built and tested. HPC computation with a proposed strategy was used to lower the computational time of the nonlinear solution of the wheel resonant attenuation used for damping estimation. Comparison of experimental and numerical results of damping estimation yields a very good agreement. |
| format | Article |
| id | doaj-art-5a857f8a53654fbb9db745b18bb774e9 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-5a857f8a53654fbb9db745b18bb774e92025-02-03T01:04:32ZengWileyShock and Vibration1070-96221875-92032021-01-01202110.1155/2021/55543795554379Dry Friction Interblade Damping by 3D FEM Modelling of Bladed Disk: HPC Calculations Compared with ExperimentLuděk Pešek0Pavel Šnábl1Vítězslav Bula2Institute of Thermomechanics of the CAS, v.v.i., Prague 182 00, Czech RepublicInstitute of Thermomechanics of the CAS, v.v.i., Prague 182 00, Czech RepublicInstitute of Thermomechanics of the CAS, v.v.i., Prague 182 00, Czech RepublicInterblade contacts and damping evaluation of the turbine bladed wheel with prestressed dry friction contacts are solved by the 3D finite element method with the surface-to-surface dry friction contact model. This makes it possible to model the space relative motions of contact pairs that occur during blade vibrations. To experimentally validate the model, a physical model of the bladed wheel with tie-boss couplings was built and tested. HPC computation with a proposed strategy was used to lower the computational time of the nonlinear solution of the wheel resonant attenuation used for damping estimation. Comparison of experimental and numerical results of damping estimation yields a very good agreement.http://dx.doi.org/10.1155/2021/5554379 |
| spellingShingle | Luděk Pešek Pavel Šnábl Vítězslav Bula Dry Friction Interblade Damping by 3D FEM Modelling of Bladed Disk: HPC Calculations Compared with Experiment Shock and Vibration |
| title | Dry Friction Interblade Damping by 3D FEM Modelling of Bladed Disk: HPC Calculations Compared with Experiment |
| title_full | Dry Friction Interblade Damping by 3D FEM Modelling of Bladed Disk: HPC Calculations Compared with Experiment |
| title_fullStr | Dry Friction Interblade Damping by 3D FEM Modelling of Bladed Disk: HPC Calculations Compared with Experiment |
| title_full_unstemmed | Dry Friction Interblade Damping by 3D FEM Modelling of Bladed Disk: HPC Calculations Compared with Experiment |
| title_short | Dry Friction Interblade Damping by 3D FEM Modelling of Bladed Disk: HPC Calculations Compared with Experiment |
| title_sort | dry friction interblade damping by 3d fem modelling of bladed disk hpc calculations compared with experiment |
| url | http://dx.doi.org/10.1155/2021/5554379 |
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