Cable Vibration

Inclined cables in various engineering applications (stay-cable bridges, power conductors, etc.) are prone to damage due to different kinds of wind-induced loads - e.g., vortex-induced vibration (VIV), rain wind-induced (RWI) vibration, flutter, etc. Galloping is an aerodynamic instability characterized by low-frequency, large-amplitude oscillations of cables normal to the wind direction. The galloping phenomenon was first observed for ice/sleet coated power conductors and explained by Den Hartog as caused due to an aerodynamic instability. Dry inclined cable galloping, often referred to as dry cable vibration, can occur for inclined circular cables at high wind speeds even when the cross-section remains axisymmetric. The cause of this instability is understood to be the asymmetry in the flow because of the relative yaw between the cable- and wind directions.

Publications

Journal

1. Wu, X., & Sharma, A. (2020). Artefacts of finite span in vortex-induced vibration simulations. Applied Ocean Research, 101, 102265.
   DOI BIB

   @article{wu2020artefacts,
     title = {Artefacts of finite span in vortex-induced vibration simulations},
     author = {Wu, Xingeng and Sharma, Anupam},
     journal = {Applied Ocean Research},
     volume = {101},
     pages = {102265},
     year = {2020},
     doi = {10.1016/j.apor.2020.102265},
     note = {CableVibration},
     publisher = {Elsevier}
   }
   

2. Wu, X., Jafari, M., Sarkar, P., & Sharma, A. (2020). Verification of DES for flow over rigidly and elastically-mounted circular cylinders in normal and yawed flow. Journal of Fluids and Structures, 94, 102895.
   DOI BIB

   @article{wu2020verification,
     title = {Verification of DES for flow over rigidly and elastically-mounted circular cylinders in normal and yawed flow},
     author = {Wu, Xingeng and Jafari, Mohammad and Sarkar, Partha and Sharma, Anupam},
     journal = {Journal of Fluids and Structures},
     volume = {94},
     pages = {102895},
     year = {2020},
     doi = {10.1016/j.jfluidstructs.2020.102895},
     note = {CableVibration},
     publisher = {Elsevier}
   }
   

Conference proceedings

1. Wu, X., & Sharma, A. (2021). umerical Investigation of Vortex-Induced Vibration at Re=8M. AIAA Aviation Forum.
   DOI BIB

   @inproceedings{xingeng2021numerical,
     title = {umerical Investigation of Vortex-Induced Vibration at Re=8M},
     author = {Wu, X. and Sharma, A.},
     booktitle = {AIAA Aviation Forum},
     address = {Washington, DC, USA},
     year = {2021},
     note = {CableVibration},
     doi = {10.2514/6.2021-2474}
   }
   

2. Wu, X., Sharma, A., Jafari, M., & Sarkar, P. (2017). Towards Predicting Dry Cable Galloping using Detached Eddy Simulations. 2017 AIAA Science and Technology Forum and Exposition.
   DOI BIB

   @inproceedings{xingengSciTech2017,
     title = {Towards Predicting Dry Cable Galloping using Detached Eddy Simulations},
     author = {Wu, X. and Sharma, A. and Jafari, M. and Sarkar, P.},
     booktitle = {2017 AIAA Science and Technology Forum and Exposition},
     address = {Grapevine, TX, USA},
     year = {2017},
     note = {CableVibration},
     doi = {10.2514/6.2017-1483}
   }