Numerical Simulation and Mechanism Study on Rain-Wind Induced Vibration of Stay Cable
Bi Jihong1, 2,Wu Ji1 , Guan Jian1, Wang Jian3,4
1. School of Civil Engineering，Tianjin University，Tianjin 300072，China；
2. Key Laboratory of Coast Civil Structure Safety，Ministry of Education，Tianjin 300072，China
3. School of Civil Engineering，Tianjin Chengjian University，Tianjin 300384，China；
4. Key laboratory of Soft Soil Characteristic and Engineering Environment of Tianjin，Tianjin 300384，China
Abstract：With lubrication theory and computational fluid dynamics(CFD) method combined , calculating wind pressure coefficient and wind friction coefficient changing with position and time, based on the finite element method and Spalart-Allmaras(S-A) turbulence flow model, a finite element model was built to simulate the rain-wind induced vibration (RWIV);To verify the veracity and rationality of this method，the formation and evolutions of rivulets under different wind speeds were studied，and compared with the existing experimental results .Through investigating the mutual influence among water film evolution, lift and vibration of cable, the mechanism of RWIV were analyzed. Similar to experimental results , the computing results showed that , the resonance among upper rivulet, lift and cable caused RWIV.
毕继红1,2，武骥1，关健1，王剑3,4. 斜拉索风雨激振数值模拟及其机理探究[J]. 振动与冲击, 2017, 36(11): 111-117.
Bi Jihong1, 2,Wu Ji1,Guan Jian1, Wang Jian3,4. Numerical Simulation and Mechanism Study on Rain-Wind Induced Vibration of Stay Cable. JOURNAL OF VIBRATION AND SHOCK, 2017, 36(11): 111-117.
［1］ 顾明,李寿英.斜拉桥拉索风雨激振理论模型和机理研究[J]空气动力学学报，2007,25（2）169-174.
Testing study on wind pressure distributions of stayed cables with a fixed artificial rivu-let[J]ActaAerodynamicaSinica ,2007,25（2）169-174.
［2］ 刘庆宽, 张峰, 乔富贵. 轴向流对斜拉索气动稳定性影响的试验研究[J]. 石家庄铁道学院学报(自然科学版), 2008, 21(4): 16―19.
Liu Qingkuan, Zhang Feng, QiaoFugui. Effect of axial flow on rain-wind induced vibration of stay-cables [J].Journal of Shijiazhuang Railway Institute (Natu-ralScience), 2008, 21(4): 16―19. (in Chinses)
［3］ S Cheng, et al. Divergent motion of cables exposed to skewed wind[C] //Proc. of the 5th In.t Symposium on Cable Dynamics. Italy: Santa Margherita Ligure, 2003: 271-278
［4］ Bi J H，Wang J，Shao Q，et al. 2D numerical anal-ysis on evolution of water film and cable vibration re-sponse subject to wind and rain [J]. Journal of Wind Engineering and Industrial Aerodynamics，2013,121：49-59.
［5］ Lemaitre C，Hémon P，de Langre E. Thin water film around a cable subject to wind [J]. Journal of Wind Engineering and Industrial Aerodynamics，2007 ， 95(9/10/11)：1259-1271.
［6］ Lemaitre C，de Langre E，Hémon P. Rainwater ri-vulets running on a stay cable subject to wind [J].European Journal of Mechanics-B/Fluids2010，29(4)：251-258.
［7］ 王剑.斜拉索表面水膜形态及斜拉索气动力变化规律.[J].天津大学学报(自然科学与工程技术版) , 2014,47（4）：1-12.
Wang J, Variation of Water Film Morphology and Aerodynamic Force of Stay Cable[J]. Journal of Tian-jin University(Science and Technology),2014，47（4）：1-12（in Chinese）.
［8］ Li F C，Chen W L，et al. An ultrasonic transmission thickness measurement system for study of water ri-vulets characteristics of stay cables suffering from wind-rain-induced vibration [J]. Sensors and Actuators A：Physical，2010，159(1)：12-23
［9］ 陈文礼. 斜拉索风雨激振的试验研究与数值模拟[D]. 哈尔滨: 哈尔滨工业大学土木工程学院, 2009.Chen W L. Experimental investigation and nu-merical simulation of rain-wind- induced vibration of stay cables [D]. Harbin: School of Civil Engineering, Harbin Institute of Technology, 2009（in Chinese）
［10］ Li H，Chen W L，Xu F. A numerical and experi-mental hybrid approach for the investigation of aero-dynamic forces on stay cables suffering from rain-wind induced vibration [J]. Journal of Fluids and Structures，2010，26(7/8)：1195-1215.
［11］ 中华人民共和国交通部.JTJ 027-96 公路斜拉桥设计规范（试行）[S]北京：人民交通出版社，1996.
［12］ 毕继红.等不同风速下拉索表面水线的形成[J].天津大学学报(自然科学与工程技术版) , 2014 , 47（7）：577-582.
Bi，et al. Formation of rivulets on cable surface under different wind speeds[J].Journal of Tianjin Uni-versity(Science and Technology, 2014 , 47（7）：577-582(in Chinese)..
