| Buckling analysis of a cable-stayed circular frame | |
|---|---|
| 學年 | 98 |
| 學期 | 2 |
| 出版（發表）日期 | 2010-03-01 |
| 作品名稱 | Buckling analysis of a cable-stayed circular frame |
| 作品名稱（其他語言） | |
| 著者 | Tuan; Alexander Y.; Tuan, Christopher Y.; Li, Q.S. |
| 單位 | 淡江大學土木工程學系 |
| 出版者 | London: Elsevier Ltd |
| 著錄名稱、卷期、頁數 | Journal of Constructional Steel Research 66(3), pp.420–427 |
| 摘要 | Large parabolic dish concentrators have been widely employed in solar thermal applications. The supporting structure of a solar dish concentrator consists of a circular frame, a central post, and front and rear cables connecting the frame to the post. The tensions in the cables cause compressive stresses in the circular frame and the central post, and this support structure must be designed for stability. In this paper, the nonlinear buckling behavior of the supporting structure of a cable-stayed circular frame is studied in detail. A three-dimensional finite element model of the supporting structure is developed to predict the critical cable tensions that would cause buckling of the circular frame and to determine the associated buckling mode shapes of the supporting structural system. The results show that the buckling load of a cable-stayed circular frame depends not only upon the cross-section of the frame, but also upon the number of cables and the inclinations of the cables. In all cases, in-plane buckling modes are predominant. The concentrated torques resulting from unbalanced cable tensions tend to induce the out-of-plane buckling modes. |
| 關鍵字 | Dish concentrators; Cables; Circular frame; Buckling; Buckling load; Buckling mode shapes; Finite element models |
| 語言 | en |
| ISSN | 0143-974X |
| 期刊性質 | |
| 收錄於 | EI SCI |
| 產學合作 | |
| 通訊作者 | Li, Q.S. |
| 審稿制度 | |
| 國別 | GBR |
| 公開徵稿 | |
| 出版型式 | 紙本 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/69774 ) |
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