Constrained Modal Analysis and Structure Improvement of Drive Gearbox of High-speed EMU
Taking the drive gearbox of a high-speed EMU as the research object，uses APDL language to establish the constrained modal analysis parametric model of the gearbox，uses the spring element to simulate the joint surface between the shaft and the box，and the first four mode shape and the natural frequen...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Journal of Mechanical Transmission
2021-06-01
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| Series: | Jixie chuandong |
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| Online Access: | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2021.06.023 |
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| _version_ | 1841547286995271680 |
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| author | Wei Hao Honghai Xu |
| author_facet | Wei Hao Honghai Xu |
| author_sort | Wei Hao |
| collection | DOAJ |
| description | Taking the drive gearbox of a high-speed EMU as the research object，uses APDL language to establish the constrained modal analysis parametric model of the gearbox，uses the spring element to simulate the joint surface between the shaft and the box，and the first four mode shape and the natural frequency of gearboxes are obtained through finite element analysis. By using the Sobol local sensitivity analysis method，the key structural parameters that affect the natural frequency of the gearbox is determined，the influence of key structural parameters on the natural frequency is analyzed. On this basis，the size parameters of the key structure improvements are carried out to increase the first and second order natural frequencies of the gearbox by more than 5%，the anti-vibration capability of the gearbox is improved. A theoretical basis for the improved design of the drive gearbox for high-speed EMU is provided. |
| format | Article |
| id | doaj-art-7a2e70d2e2dd4797bea8d9045c93de32 |
| institution | Kabale University |
| issn | 1004-2539 |
| language | zho |
| publishDate | 2021-06-01 |
| publisher | Editorial Office of Journal of Mechanical Transmission |
| record_format | Article |
| series | Jixie chuandong |
| spelling | doaj-art-7a2e70d2e2dd4797bea8d9045c93de322025-01-10T14:48:45ZzhoEditorial Office of Journal of Mechanical TransmissionJixie chuandong1004-25392021-06-014515315811255325Constrained Modal Analysis and Structure Improvement of Drive Gearbox of High-speed EMUWei HaoHonghai XuTaking the drive gearbox of a high-speed EMU as the research object，uses APDL language to establish the constrained modal analysis parametric model of the gearbox，uses the spring element to simulate the joint surface between the shaft and the box，and the first four mode shape and the natural frequency of gearboxes are obtained through finite element analysis. By using the Sobol local sensitivity analysis method，the key structural parameters that affect the natural frequency of the gearbox is determined，the influence of key structural parameters on the natural frequency is analyzed. On this basis，the size parameters of the key structure improvements are carried out to increase the first and second order natural frequencies of the gearbox by more than 5%，the anti-vibration capability of the gearbox is improved. A theoretical basis for the improved design of the drive gearbox for high-speed EMU is provided.http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2021.06.023GearboxConstrained modalNatural frequencySensitivity analysisStructural improvement |
| spellingShingle | Wei Hao Honghai Xu Constrained Modal Analysis and Structure Improvement of Drive Gearbox of High-speed EMU Jixie chuandong Gearbox Constrained modal Natural frequency Sensitivity analysis Structural improvement |
| title | Constrained Modal Analysis and Structure Improvement of Drive Gearbox of High-speed EMU |
| title_full | Constrained Modal Analysis and Structure Improvement of Drive Gearbox of High-speed EMU |
| title_fullStr | Constrained Modal Analysis and Structure Improvement of Drive Gearbox of High-speed EMU |
| title_full_unstemmed | Constrained Modal Analysis and Structure Improvement of Drive Gearbox of High-speed EMU |
| title_short | Constrained Modal Analysis and Structure Improvement of Drive Gearbox of High-speed EMU |
| title_sort | constrained modal analysis and structure improvement of drive gearbox of high speed emu |
| topic | Gearbox Constrained modal Natural frequency Sensitivity analysis Structural improvement |
| url | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2021.06.023 |
| work_keys_str_mv | AT weihao constrainedmodalanalysisandstructureimprovementofdrivegearboxofhighspeedemu AT honghaixu constrainedmodalanalysisandstructureimprovementofdrivegearboxofhighspeedemu |