Accurate and Efficient Calculation for Full-scale Aircraft Dynamic Characteristics Based on Out-of-plane Stiffness Correction
Some problems such as large number of grids,high calculation cost,large proportion of memory and slow calculation efficiency may be encountered when calculating the dynamic characteristics of full-scale aircraft structures. In order to exclude the redundant local modal from the frequency range of in...
| Main Authors: | , |
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| Format: | Article |
| Language: | zho |
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Editorial Department of Advances in Aeronautical Science and Engineering
2022-04-01
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| Series: | Hangkong gongcheng jinzhan |
| Subjects: | |
| Online Access: | http://hkgcjz.cnjournals.com/hkgcjz/article/abstract/2021153?st=article_issue |
| _version_ | 1828035872543473664 |
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| author | LI Peng WANG Yahui |
| author_facet | LI Peng WANG Yahui |
| author_sort | LI Peng |
| collection | DOAJ |
| description | Some problems such as large number of grids,high calculation cost,large proportion of memory and slow calculation efficiency may be encountered when calculating the dynamic characteristics of full-scale aircraft structures. In order to exclude the redundant local modal from the frequency range of interest,the method of increasing the out-of-plane stiffness of the shell element is proposed,and the local modal is reduced for showing the entire modal. The accuracy and efficiency of the entire modal are verified by using a box model and a full-scale aircraft model. The results show that the out-of-plane stiffness correction method can be applied to the accurate and efficient calculation of the full-scale aircraft structure characteristics,the calculation efficiency of full-scale aircraft model is increased by more than 100 times,the file storage space is reduced by nearly 10 times,and the maximum error of the first 6-order modal frequency of full-scale aircraft is only around 4%. |
| first_indexed | 2024-04-10T15:52:41Z |
| format | Article |
| id | doaj.art-5207a35f004e4e19979c70535ce6dcc8 |
| institution | Directory Open Access Journal |
| issn | 1674-8190 |
| language | zho |
| last_indexed | 2024-04-10T15:52:41Z |
| publishDate | 2022-04-01 |
| publisher | Editorial Department of Advances in Aeronautical Science and Engineering |
| record_format | Article |
| series | Hangkong gongcheng jinzhan |
| spelling | doaj.art-5207a35f004e4e19979c70535ce6dcc82023-02-11T02:26:00ZzhoEditorial Department of Advances in Aeronautical Science and EngineeringHangkong gongcheng jinzhan1674-81902022-04-01132515610.16615/j.cnki.1674-8190.2022.02.0820220208Accurate and Efficient Calculation for Full-scale Aircraft Dynamic Characteristics Based on Out-of-plane Stiffness CorrectionLI Peng0WANG Yahui1Vibration Research Department, Aircraft Strength Research Institute of China, Xi'an 710065, ChinaThe 18th Research Department, AVIC Aeronautics Computing Technology Research Institute, Xi'an 710076, ChinaSome problems such as large number of grids,high calculation cost,large proportion of memory and slow calculation efficiency may be encountered when calculating the dynamic characteristics of full-scale aircraft structures. In order to exclude the redundant local modal from the frequency range of interest,the method of increasing the out-of-plane stiffness of the shell element is proposed,and the local modal is reduced for showing the entire modal. The accuracy and efficiency of the entire modal are verified by using a box model and a full-scale aircraft model. The results show that the out-of-plane stiffness correction method can be applied to the accurate and efficient calculation of the full-scale aircraft structure characteristics,the calculation efficiency of full-scale aircraft model is increased by more than 100 times,the file storage space is reduced by nearly 10 times,and the maximum error of the first 6-order modal frequency of full-scale aircraft is only around 4%.http://hkgcjz.cnjournals.com/hkgcjz/article/abstract/2021153?st=article_issuefull-scale aircraft structuredynamic characteristicsmodal calculationaccurate and efficientout-ofplane stiffness |
| spellingShingle | LI Peng WANG Yahui Accurate and Efficient Calculation for Full-scale Aircraft Dynamic Characteristics Based on Out-of-plane Stiffness Correction Hangkong gongcheng jinzhan full-scale aircraft structure dynamic characteristics modal calculation accurate and efficient out-ofplane stiffness |
| title | Accurate and Efficient Calculation for Full-scale Aircraft Dynamic Characteristics Based on Out-of-plane Stiffness Correction |
| title_full | Accurate and Efficient Calculation for Full-scale Aircraft Dynamic Characteristics Based on Out-of-plane Stiffness Correction |
| title_fullStr | Accurate and Efficient Calculation for Full-scale Aircraft Dynamic Characteristics Based on Out-of-plane Stiffness Correction |
| title_full_unstemmed | Accurate and Efficient Calculation for Full-scale Aircraft Dynamic Characteristics Based on Out-of-plane Stiffness Correction |
| title_short | Accurate and Efficient Calculation for Full-scale Aircraft Dynamic Characteristics Based on Out-of-plane Stiffness Correction |
| title_sort | accurate and efficient calculation for full scale aircraft dynamic characteristics based on out of plane stiffness correction |
| topic | full-scale aircraft structure dynamic characteristics modal calculation accurate and efficient out-ofplane stiffness |
| url | http://hkgcjz.cnjournals.com/hkgcjz/article/abstract/2021153?st=article_issue |
| work_keys_str_mv | AT lipeng accurateandefficientcalculationforfullscaleaircraftdynamiccharacteristicsbasedonoutofplanestiffnesscorrection AT wangyahui accurateandefficientcalculationforfullscaleaircraftdynamiccharacteristicsbasedonoutofplanestiffnesscorrection |