Iterated Dynamic Condensation Technique and Its Applications in Modal Testing
This article addresses an application of the dynamic condensation in modal testing, which requires measurements of natural frequencies and a limited number of components of modal shapes only. The measured frequencies can be employed as the initial estimates in the iterated dynamic condensation to ef...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
1997-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.3233/SAV-1997-4301 |
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| _version_ | 1832562031922774016 |
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| author | Zhikun Hou Shiyu Chen |
| author_facet | Zhikun Hou Shiyu Chen |
| author_sort | Zhikun Hou |
| collection | DOAJ |
| description | This article addresses an application of the dynamic condensation in modal testing, which requires measurements of natural frequencies and a limited number of components of modal shapes only. The measured frequencies can be employed as the initial estimates in the iterated dynamic condensation to effectively find an exact solution for the original eigenvalue problem and determine the transformation matrix between the testing and nontesting coordinates. Complete modal shapes including the nontesting coordinates can then be estimated based on the limited measurements. Numerical results are presented to illustrate the feasibility and efficiency of the iterated dynamic condensation. A comparison with the experimental results of a multiple disk system is also provided. |
| format | Article |
| id | doaj-art-1488037328c64062a156ca7c40129643 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 1997-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-1488037328c64062a156ca7c401296432025-02-03T01:23:32ZengWileyShock and Vibration1070-96221875-92031997-01-014314315110.3233/SAV-1997-4301Iterated Dynamic Condensation Technique and Its Applications in Modal TestingZhikun Hou0Shiyu Chen1Department of Mechanical Engineering, Worcester Polytechnic Institute, Worcester, MA 01609, USADepartment of Mechanical Engineering, Worcester Polytechnic Institute, Worcester, MA 01609, USAThis article addresses an application of the dynamic condensation in modal testing, which requires measurements of natural frequencies and a limited number of components of modal shapes only. The measured frequencies can be employed as the initial estimates in the iterated dynamic condensation to effectively find an exact solution for the original eigenvalue problem and determine the transformation matrix between the testing and nontesting coordinates. Complete modal shapes including the nontesting coordinates can then be estimated based on the limited measurements. Numerical results are presented to illustrate the feasibility and efficiency of the iterated dynamic condensation. A comparison with the experimental results of a multiple disk system is also provided.http://dx.doi.org/10.3233/SAV-1997-4301 |
| spellingShingle | Zhikun Hou Shiyu Chen Iterated Dynamic Condensation Technique and Its Applications in Modal Testing Shock and Vibration |
| title | Iterated Dynamic Condensation Technique and Its Applications in Modal Testing |
| title_full | Iterated Dynamic Condensation Technique and Its Applications in Modal Testing |
| title_fullStr | Iterated Dynamic Condensation Technique and Its Applications in Modal Testing |
| title_full_unstemmed | Iterated Dynamic Condensation Technique and Its Applications in Modal Testing |
| title_short | Iterated Dynamic Condensation Technique and Its Applications in Modal Testing |
| title_sort | iterated dynamic condensation technique and its applications in modal testing |
| url | http://dx.doi.org/10.3233/SAV-1997-4301 |
| work_keys_str_mv | AT zhikunhou iterateddynamiccondensationtechniqueanditsapplicationsinmodaltesting AT shiyuchen iterateddynamiccondensationtechniqueanditsapplicationsinmodaltesting |