RESEARCH ON SIZE EFFECT OF COMBINED ROTOR CONSIDERING MICROCRACK
During the process of combined rotor modularization amplification or reduction,due to the size effect,the law of the influence of microcrack expansion on the dynamic performance of the combined rotor with different sizes is not clear.Dimensional analysis method of similarity theory was used to intro...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Journal of Mechanical Strength
2019-01-01
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| Series: | Jixie qiangdu |
| Subjects: | |
| Online Access: | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2019.06.028 |
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| author | ZHU ZhuoPing WANG AiLun SHAO ShiCong LIU XiangJun |
| author_facet | ZHU ZhuoPing WANG AiLun SHAO ShiCong LIU XiangJun |
| author_sort | ZHU ZhuoPing |
| collection | DOAJ |
| description | During the process of combined rotor modularization amplification or reduction,due to the size effect,the law of the influence of microcrack expansion on the dynamic performance of the combined rotor with different sizes is not clear.Dimensional analysis method of similarity theory was used to introduce the "size effect"existing in the process of microcrack expansion. And taking the prototype,2. 3-fold scale model and 1. 3-fold scale-up model of a heavy duty gas turbine combined rotor as the research objects,the combined rotor natural frequency drift were analyzed in the case of initial microcracks varying with combined rotor size. The results show that there is comparatively large deviation when using the ordinary Paris formula to analyze the natural frequency drift of the different size combined rotors caused by microcrack expansion. There is a certain correlation between the change of dynamic performance and the size of combined rotor considering microcracks. |
| format | Article |
| id | doaj-art-8ad295c6fc2e4b98b992b8b7af3ccd5e |
| institution | Kabale University |
| issn | 1001-9669 |
| language | zho |
| publishDate | 2019-01-01 |
| publisher | Editorial Office of Journal of Mechanical Strength |
| record_format | Article |
| series | Jixie qiangdu |
| spelling | doaj-art-8ad295c6fc2e4b98b992b8b7af3ccd5e2025-01-15T02:28:59ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692019-01-01411454145930606555RESEARCH ON SIZE EFFECT OF COMBINED ROTOR CONSIDERING MICROCRACKZHU ZhuoPingWANG AiLunSHAO ShiCongLIU XiangJunDuring the process of combined rotor modularization amplification or reduction,due to the size effect,the law of the influence of microcrack expansion on the dynamic performance of the combined rotor with different sizes is not clear.Dimensional analysis method of similarity theory was used to introduce the "size effect"existing in the process of microcrack expansion. And taking the prototype,2. 3-fold scale model and 1. 3-fold scale-up model of a heavy duty gas turbine combined rotor as the research objects,the combined rotor natural frequency drift were analyzed in the case of initial microcracks varying with combined rotor size. The results show that there is comparatively large deviation when using the ordinary Paris formula to analyze the natural frequency drift of the different size combined rotors caused by microcrack expansion. There is a certain correlation between the change of dynamic performance and the size of combined rotor considering microcracks.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2019.06.028Combined rotorSimilarity theoryMicrocrackDynamic performanceSerial designSize effect |
| spellingShingle | ZHU ZhuoPing WANG AiLun SHAO ShiCong LIU XiangJun RESEARCH ON SIZE EFFECT OF COMBINED ROTOR CONSIDERING MICROCRACK Jixie qiangdu Combined rotor Similarity theory Microcrack Dynamic performance Serial design Size effect |
| title | RESEARCH ON SIZE EFFECT OF COMBINED ROTOR CONSIDERING MICROCRACK |
| title_full | RESEARCH ON SIZE EFFECT OF COMBINED ROTOR CONSIDERING MICROCRACK |
| title_fullStr | RESEARCH ON SIZE EFFECT OF COMBINED ROTOR CONSIDERING MICROCRACK |
| title_full_unstemmed | RESEARCH ON SIZE EFFECT OF COMBINED ROTOR CONSIDERING MICROCRACK |
| title_short | RESEARCH ON SIZE EFFECT OF COMBINED ROTOR CONSIDERING MICROCRACK |
| title_sort | research on size effect of combined rotor considering microcrack |
| topic | Combined rotor Similarity theory Microcrack Dynamic performance Serial design Size effect |
| url | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2019.06.028 |
| work_keys_str_mv | AT zhuzhuoping researchonsizeeffectofcombinedrotorconsideringmicrocrack AT wangailun researchonsizeeffectofcombinedrotorconsideringmicrocrack AT shaoshicong researchonsizeeffectofcombinedrotorconsideringmicrocrack AT liuxiangjun researchonsizeeffectofcombinedrotorconsideringmicrocrack |