Optimization and engineering verification of excitation scheme for aircraft ground vibration test
Ground vibration test is an important part of aircraft model development and strength verification. In aircraft ground vibration test，an appropriate excitation scheme can significantly shorten the test's period and improve the accuracy of mode identification. In this paper，QR decomposition base...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Advances in Aeronautical Science and Engineering
2024-10-01
|
| Series: | Hangkong gongcheng jinzhan |
| Subjects: | |
| Online Access: | http://hkgcjz.cnjournals.com/hkgcjz/article/abstract/2023250 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850199330473902080 |
|---|---|
| author | CHEN Haoyu WANG Binwen SONG Qiaozhi LI Xiaodong |
| author_facet | CHEN Haoyu WANG Binwen SONG Qiaozhi LI Xiaodong |
| author_sort | CHEN Haoyu |
| collection | DOAJ |
| description | Ground vibration test is an important part of aircraft model development and strength verification. In aircraft ground vibration test，an appropriate excitation scheme can significantly shorten the test's period and improve the accuracy of mode identification. In this paper，QR decomposition based on the finite element model is used for global planning of exciter placement，and mode participation is introduced to evaluate the plan's exciting efficiency. The multivariate mode indicator function is used to optimize the exciting force vector for closely spaced modes. Finally，these methods are verified in a small general aircraft's ground vibration test，which significantly improves the test's efficiency and reduces the difficulty of closely spaced modes identification. The excitation scheme optimization method adopted in this article has high engineering application value. |
| format | Article |
| id | doaj-art-8916c489c4cd4829ad5e5b5368fdfd6d |
| institution | OA Journals |
| issn | 1674-8190 |
| language | zho |
| publishDate | 2024-10-01 |
| publisher | Editorial Department of Advances in Aeronautical Science and Engineering |
| record_format | Article |
| series | Hangkong gongcheng jinzhan |
| spelling | doaj-art-8916c489c4cd4829ad5e5b5368fdfd6d2025-08-20T02:12:38ZzhoEditorial Department of Advances in Aeronautical Science and EngineeringHangkong gongcheng jinzhan1674-81902024-10-0115511411910.16615/j.cnki.1674-8190.2024.05.1110.16615/j.cnki.1674-8190.2024.05.11Optimization and engineering verification of excitation scheme for aircraft ground vibration testCHEN Haoyu0WANG Binwen1SONG Qiaozhi2LI Xiaodong3Key Laboratory of Aeronautical Science and Technology for Aeroacoustics and Vibration, Aircraft Strength Research Institute of China, Xi'an 710065, ChinaKey Laboratory of Aeronautical Science and Technology for Aeroacoustics and Vibration, Aircraft Strength Research Institute of China, Xi'an 710065, ChinaKey Laboratory of Aeronautical Science and Technology for Aeroacoustics and Vibration, Aircraft Strength Research Institute of China, Xi'an 710065, ChinaKey Laboratory of Aeronautical Science and Technology for Aeroacoustics and Vibration, Aircraft Strength Research Institute of China, Xi'an 710065, ChinaGround vibration test is an important part of aircraft model development and strength verification. In aircraft ground vibration test，an appropriate excitation scheme can significantly shorten the test's period and improve the accuracy of mode identification. In this paper，QR decomposition based on the finite element model is used for global planning of exciter placement，and mode participation is introduced to evaluate the plan's exciting efficiency. The multivariate mode indicator function is used to optimize the exciting force vector for closely spaced modes. Finally，these methods are verified in a small general aircraft's ground vibration test，which significantly improves the test's efficiency and reduces the difficulty of closely spaced modes identification. The excitation scheme optimization method adopted in this article has high engineering application value.http://hkgcjz.cnjournals.com/hkgcjz/article/abstract/2023250ground vibration testexciting force vectorqr decompositionmode participationmodal identification |
| spellingShingle | CHEN Haoyu WANG Binwen SONG Qiaozhi LI Xiaodong Optimization and engineering verification of excitation scheme for aircraft ground vibration test Hangkong gongcheng jinzhan ground vibration test exciting force vector qr decomposition mode participation modal identification |
| title | Optimization and engineering verification of excitation scheme for aircraft ground vibration test |
| title_full | Optimization and engineering verification of excitation scheme for aircraft ground vibration test |
| title_fullStr | Optimization and engineering verification of excitation scheme for aircraft ground vibration test |
| title_full_unstemmed | Optimization and engineering verification of excitation scheme for aircraft ground vibration test |
| title_short | Optimization and engineering verification of excitation scheme for aircraft ground vibration test |
| title_sort | optimization and engineering verification of excitation scheme for aircraft ground vibration test |
| topic | ground vibration test exciting force vector qr decomposition mode participation modal identification |
| url | http://hkgcjz.cnjournals.com/hkgcjz/article/abstract/2023250 |
| work_keys_str_mv | AT chenhaoyu optimizationandengineeringverificationofexcitationschemeforaircraftgroundvibrationtest AT wangbinwen optimizationandengineeringverificationofexcitationschemeforaircraftgroundvibrationtest AT songqiaozhi optimizationandengineeringverificationofexcitationschemeforaircraftgroundvibrationtest AT lixiaodong optimizationandengineeringverificationofexcitationschemeforaircraftgroundvibrationtest |