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| 大口径射电望远镜轮轨滚动接触有限元分析 | |
| Alternative Title | Finite Element Analysis of Wheel-on-track Ｒolling Contact for Large Aperture Ｒadio Telescope |
师洪强1,2; 许谦2,3,4 ; 王娜2,3,4; 王兆军1
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| 2022-03-01 | |
| Source Publication | 天文研究与技术
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| ISSN | 1672-7673 |
| Volume | 19Issue:2Pages:95-102 |
| Contribution Rank | 2 |
| Abstract | 通过显式有限元法建立轮轨滚动接触模型，用于分析110米口径射电望远镜滚轮经过焊缝时的应力变化。建模时不仅考虑了焊缝处材料差异，同时还考虑轨道焊缝处表面不平度和摩擦系数的影响，分析了滚轮经过轨道焊缝时轮轨间作用力的瞬态响应。采用层级细分技术对轮轨模型进行前处理，经过静力学分析结果表明，模型求解精度较高。将该前处理模型用于瞬态分析发现，焊缝处表面不平度对轮轨间作用力影响较大，使轮轨间Mises应力增加了约20%，可能会对轨道长期可靠服役带来一定的隐患，因此需要定期对轨道的状态进行检测与维护，保障轨道的长期可靠服役特性。 |
| Other Abstract | Based on wheel-on-track rolling contact model which is established by explicit finite element method,the stress variation about the wheel of 110-meter aperture radio telescope passing through the welding joint is analyzed.When modeling,not only the material difference at the welding joint,but also the influence of the flatness and friction coefficient at the track welding joint are considered.According to the model,when the wheel passing through the welding joint,the transient response of the force between wheel and track is analyzed.The hierarchical subdivision technology is used to preprocess the wheel-on-track model,and the results of static analysis show that the model has high precision.The transient analysis results show that,the Mises stress is increased by about 20% due to the track flatness,which may bring some hidden danger to the track's long-term reliable service.Therefore,it is necessary to inspection and maintenance the status of the track regularly to ensure the long-term reliable service characteristics of the track. |
| Keyword | 射电望远镜 方位轨道 滚动接触 瞬态响应 有限元法 |
| Indexed By | CSCD |
| Language | 中文 |
| CSCD ID | CSCD:7167084 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/5101 |
| Collection | 射电天文研究室_天线技术实验室 110米口径全可动射电望远镜（QTT）_技术成果 射电天文研究室_脉冲星研究团组 |
| Corresponding Author | 许谦; 王兆军 |
| Affiliation | 1.新疆大学物理科学与技术学院,新疆乌鲁木齐830046; 2.中国科学院新疆天文台,新疆乌鲁木齐830011; 3.中国科学院射电天文重点实验室,江苏南京210033; 4.新疆射电天体物理重点实验室,新疆乌鲁木齐830011 |
| First Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Corresponding Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | 师洪强,许谦,王娜,等. 大口径射电望远镜轮轨滚动接触有限元分析[J]. 天文研究与技术,2022,19(2):95-102. |
| APA | 师洪强,许谦,王娜,&王兆军.(2022).大口径射电望远镜轮轨滚动接触有限元分析.天文研究与技术,19(2),95-102. |
| MLA | 师洪强,et al."大口径射电望远镜轮轨滚动接触有限元分析".天文研究与技术 19.2(2022):95-102. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 师洪强-2022-大口径射电望远镜轮轨滚（1217KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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