Introduction

Welcome to the documentation for OrcaFlex (version 11.6c). OrcaFlex performs global static and dynamic analysis of a wide range of offshore systems, typically including boundary conditions such as vessels, buoys, etc., as well as finite element modelling of line structures. More introductory information can be found at www.orcina.com/orcaflex/, including:

• a list of applications
• a technical specification
• a demonstration version of OrcaFlex
• a set of pre-run example files
• a set of validation cases

This documentation explains how to build a model, run the program and extract results. It also contains the only published source of the theory behind OrcaFlex, augmented by a handful of technical notes at www.orcina.com/resources/. This documentation is available in the form of a dedicated OrcaFlex help browser, which presents context-sensitive help from within the program when F1 is pressed. The help browser is installed alongside OrcaFlex; it can also be downloaded from www.orcina.com/resources/documentation/, or the help topics can be viewed on-line www.orcina.com/webhelp/OrcaFlex/.

If you are new to OrcaFlex then our introduction videos are a useful resource. The published examples, each of which has an accompanying description, are a great way to deepen your understanding of OrcaFlex and its range of capabilities.

Finally, please feel free to contact Orcina or your Orcina agent should you require further details about OrcaFlex or our other software.

Copyright notice

Copyright Orcina Ltd. 1987-2026. All rights reserved.