The Offshore Industry’s leading software tool for the prediction of Vortex Induced Vibration (VIV)

About us

SHEAR7 is the offshore industry’s leading software tool for the prediction of Vortex-Induced Vibration (VIV) with close to twenty years of industry use and continuous development. The program’s forte is the VIV response prediction of offshore structures subjected to spatially varying currents; realistic of ocean environments. The program enables users to estimate structural responses, drag force amplification factors and predict fatigue damage. SHEAR7 couples to other offshore system modelling tools such as Orcaflex and Flexcom enabling VIV assessment through the front end of these packages. It is simple and fast to run with all the results summarized in a convenient standard output file. SHEAR7 is used throughout the world by engineers in Australia, Brazil, China, Denmark, France, India, Japan, Korea, Malaysia, Norway, Spain, UK and USA.


SHEAR7 is distributed by AMOG Consulting. For clients who prefer to subcontract part or all of their analysis work, including third party verification, AMOG offers a consultancy service. Services can range from initial setup of project problem, complete system analysis with reports, riser CVA verification, third party verification including spot checks, VIV suppression optimisation, and guidance on VIV integrity monitoring strategy. SHEAR7 Provides the following services:

  • Consulting Services
  • Training
  • User groups
Dr Hayden Marcollo

Professor J Kim Vandiver

Craig Dillon-Gibbons


770 South Post Oak Lane, Suite 310, Houston Texas 77056, United States.