Working Platform Design of Welding System based on Flexible Modal Analysis
According to the requirements of tank bottom longitudinal seam welding system of the new generation launch vehicle,its working platform feeding system are designed. Considering the flexible influence between screw nut and at both ends of its bearing contact surface and pre- tightening force,its flex...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Journal of Mechanical Transmission
2016-01-01
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| Series: | Jixie chuandong |
| Subjects: | |
| Online Access: | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2016.12.032 |
| _version_ | 1797819350345842688 |
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| author | Zhao Ting 2Liu Geng Zhang Zhanzhi Ni Jiangtao Tong Kewei |
| author_facet | Zhao Ting 2Liu Geng Zhang Zhanzhi Ni Jiangtao Tong Kewei |
| author_sort | Zhao Ting |
| collection | DOAJ |
| description | According to the requirements of tank bottom longitudinal seam welding system of the new generation launch vehicle,its working platform feeding system are designed. Considering the flexible influence between screw nut and at both ends of its bearing contact surface and pre- tightening force,its flexible modal finite element is established. By 10 orders modal analysis,its vibration mode and natural frequency are obtained,and the maximum error between considering contact surface flexibility and pre- stress influence and without considering these factors is 24. 6%. The corresponding critical rotate speed of the first order natural frequency is obviously larger than the maximum rotate speed required by the screw. Therefore,the resonance will not occur in the system. Moreover,through the experimental test,its double nut positioning pre- tightening scheme and the computing method are verified. The methods and basis for the design of large- scale feed platform are provided. |
| first_indexed | 2024-03-13T09:21:39Z |
| format | Article |
| id | doaj.art-d8a4b87d0a2043d2a69e4441b86ede61 |
| institution | Directory Open Access Journal |
| issn | 1004-2539 |
| language | zho |
| last_indexed | 2024-03-13T09:21:39Z |
| publishDate | 2016-01-01 |
| publisher | Editorial Office of Journal of Mechanical Transmission |
| record_format | Article |
| series | Jixie chuandong |
| spelling | doaj.art-d8a4b87d0a2043d2a69e4441b86ede612023-05-26T09:43:07ZzhoEditorial Office of Journal of Mechanical TransmissionJixie chuandong1004-25392016-01-014014414729927584Working Platform Design of Welding System based on Flexible Modal AnalysisZhao Ting2Liu GengZhang ZhanzhiNi JiangtaoTong KeweiAccording to the requirements of tank bottom longitudinal seam welding system of the new generation launch vehicle,its working platform feeding system are designed. Considering the flexible influence between screw nut and at both ends of its bearing contact surface and pre- tightening force,its flexible modal finite element is established. By 10 orders modal analysis,its vibration mode and natural frequency are obtained,and the maximum error between considering contact surface flexibility and pre- stress influence and without considering these factors is 24. 6%. The corresponding critical rotate speed of the first order natural frequency is obviously larger than the maximum rotate speed required by the screw. Therefore,the resonance will not occur in the system. Moreover,through the experimental test,its double nut positioning pre- tightening scheme and the computing method are verified. The methods and basis for the design of large- scale feed platform are provided.http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2016.12.032Launch vehicle;Pre-tightening;Working platform;Flexible modal;Finite element |
| spellingShingle | Zhao Ting 2Liu Geng Zhang Zhanzhi Ni Jiangtao Tong Kewei Working Platform Design of Welding System based on Flexible Modal Analysis Jixie chuandong Launch vehicle;Pre-tightening;Working platform;Flexible modal;Finite element |
| title | Working Platform Design of Welding System based on Flexible Modal Analysis |
| title_full | Working Platform Design of Welding System based on Flexible Modal Analysis |
| title_fullStr | Working Platform Design of Welding System based on Flexible Modal Analysis |
| title_full_unstemmed | Working Platform Design of Welding System based on Flexible Modal Analysis |
| title_short | Working Platform Design of Welding System based on Flexible Modal Analysis |
| title_sort | working platform design of welding system based on flexible modal analysis |
| topic | Launch vehicle;Pre-tightening;Working platform;Flexible modal;Finite element |
| url | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2016.12.032 |
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