[1] Liu Yun, Qian Zhendong, Xia Kaiquan, et al. Mechanical analysis of transmission linesbased on linear sliding cable element [J]. Journal of Southeast University (English Edition), 2013, 29 (4): 436-440. [doi:10.3969/j.issn.1003-7985.2013.04.015]
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Mechanical analysis of transmission linesbased on linear sliding cable element(
)
基于直线型滑移索单元的输电线路结构张力分析
)Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]
- Volumn:
- 29
- Issue:
- 2013 4
- Page:
- 436-440
- Research Field:
- Electrical Engineering
- Publishing date:
- 2013-12-20
Info
- Title:
- Mechanical analysis of transmission linesbased on linear sliding cable element
- 基于直线型滑移索单元的输电线路结构张力分析
- Author(s):
- Liu Yun1; 2; Qian Zhendong2; Xia Kaiquan3
-
1College of Civil and Transportation Engineering, Hohai University, Nanjing 210098, China
2Intelligent Transportation System Institute, Southeast University, Nanjing 210096, China
3China Electric Power Research Institute, Beijing 100192, China
- Keywords:
- transmission line; sliding cable element; updated Lagrangian formulation; geometric nonlinear
- PACS:
- TM753
- DOI:
- 10.3969/j.issn.1003-7985.2013.04.015
- Abstract:
- In order to study the sliding characteristics when the cable structures are connected with other rods, a string of sliding cable elements(SCE)consisting of one active three-node SCE passing through the sliding point and multiple inactive two-node SCEs is put forward. Based on the updated Lagrangian formulation, the geometric nonlinear stiffness matrix of the three-node straight sliding cable element is deduced. The examples about two-span and three-span continuous cable structures are studied to verify the effectiveness of the derived SCE. Comparing the cable tension of SCE with the existing research results, the calculating results show that the error is less than 1%. The sliding characteristics should be considered in practical engineering because of the obvious difference between the cable tension of the SCE and that of the cable element without considering sliding characteristics.
- 为了研究高压架空输电线索结构与塔架等其他杆件连接处的滑移特性, 定义了一组滑移索单元, 由一个通过滑动节点连接的三节点活动滑移索单元和多个两节点非活动滑移索单元组成.基于更新拉格朗日格式推导了三节点直线型滑索单元几何非线性刚度矩阵, 并通过两跨和三跨等高连续索结构的有限元数值算例验证了空间直线型滑移索单元的有效性.研究结果表明, 推导的直线型滑移索单元张力与已有计算结果相比, 误差在1%以内.考虑滑移的索结构初始平衡状态内力与不考虑滑移的情况比较相差较大, 因而在实际工程中应该考虑索的滑移.
References:
[1] Roshan F M, McClure G. Numerical modeling of the dynamic response of ice-shedding on electrical transmission lines [J]. Atmospheric Research, 1998, 46(1/2): 1-11.
[2] McClure G, Lapointe M. Modeling the structural dynamic response of overhead transmission lines [J]. Computers and Structures, 2003, 81(8/9/10/11): 825-834.
[3] Shehata A Y, El Damatty A A, Savory E. Finite element modeling of transmission line under downburst wind loading [J]. Finite Elements in Analysis and Design, 2005, 42(1): 71-89.
[4] Hamada A, EI Damatty A A. Behaviour of guyed transmission line structures under tornado wind loading [J]. Computers and Structures, 2011, 89(11/12): 986-1003.
[5] Fei Q G, Zhou H G, Han X L, et al. Structural health monitoring oriented stability and dynamic analysis of a long-span transmission tower-line system [J]. Engineering Failure Analysis, 2012, 20: 80-87.
[6] Qin L, Yuan J J, Li W. Random wind-induced response analysis of transmission tower-line system [J]. Energy Procedia, 2012, 16: 1813-1821.
[7] Tang Jianmin, Shen Zuyan. A nonlinear analysis method with sliding cable elements for the cable structures [J]. Chinese Journal of Computational Mechanics, 1999, 16(2): 143-149.(in Chinese)
[8] Guo Yanlin, Cui Xiaoqiang. A unified analytical method for gliding cable structures: frozen-heated method [J]. Engineering Mechanics, 2003, 20(4): 156-159.(in Chinese)
[9] Zhang Zhihong, Dong Shilin. Slipping analysis of continuous cable in tension structures [J]. Spatial Structures, 2001, 7(3): 26-32.(in Chinese)
[10] Wei Jiandong, Liu Zhongyu. One method dealing with cable sliding [J]. Chinese Journal of Computational Mechanics, 2003, 20(4): 495-499.(in Chinese)
[11] Aufaure M. A finite element of cable passing through a pulley [J]. Computers and Structures, 1993, 46(5): 807-812.
[12] Aufaure M. A three-node cable element ensuring the continuity of the horizontal tension: a clamp-cable element [J]. Computers and Structures, 2000, 74(2): 243-251.
[13] Nie Jianguo, Chen Bilei, Xiao Jianchun. Nonlinear static analysis of continuous cables with sliding at the middle supportings [J]. Chinese Journal of Computational Mechanics, 2003, 20(3): 320-324.(in Chinese)
[14] Wei J D. Cable sliding at supports in cable structures [J]. Journal of Southwest Jiaotong University, 12(1): 56-60.
[15] McDonald B M, Peyrot A H. Analysis of cables suspended in sheaves [J]. Journal of Structural Engineering, 1988, 114(3): 693-706.
[16] Zhou B, Accorsi M L, Leonard J W. Finite element formulation for modeling sliding cable elements [J]. Computers and Structures, 2004, 82(2/3): 271-280.
[17] Chen Z H, Wu Y J, Yin Y, et al. Formulation and application of multi-node sliding cable element for the analysis of Suspen-Dome structures [J]. Finite Element in Analysis and Design, 2010, 46(9): 743-750.
[18] Thai H T, Kim S E. Nonlinear static and dynamic analysis of cable structures [J]. Finite Elements in Analysis and Design, 2011, 47(3): 237-246.
[19] Green A E, Zerna W. Theoretical elasticity [M]. 2nd ed. New York: Dover Publication Inc, 1992:18-22.
Memo
- Memo:
-
Biography: Liu Yun(1981—), male, doctor, lecturer, hhu-liuyun@126.com.
Foundation items: The National Natural Science Foundation of China(No.51308193), China Postdoctoral Science Foundation(No.20110491342), Jiangsu Planned Projects for Postdoctoral Research Funds(No.1101018C), the Science and Technology Project of State Grid Corporation of China(No.SGKJ [2007] 116).
Citation: Liu Yun, Qian Zhendong, Xia Kaiquan.Mechanical analysis of transmission lines based on linear sliding cable element[J].Journal of Southeast University(English Edition), 2013, 29(4):436-440.[doi:10.3969/j.issn.1003-7985.2013.04.015]