Modeling and validation of local non-linearities and its effect on dynamics and stability

Purpose and goal

Methods used in the aerospace industry today normally do not include nonlinear effects, which for some cases show discrepancies from what is observed tests. This put higher demands on methods and methodology. The purpose of the project is to develop methods and tools for test, analysis and model calibration primarily with respect to local non-linearities with the goal to increase the ability to understand and analyze its effects.

Expected effects and result

Expected results is to increase the capability to analyze non-linear affects. Firstly, the ability to identify the non-linear sources of discrepancies between test and analysis followed by studies of its effect on dynamic properties. This will increase the overall understanding and thereby enabling inclusion of the same in the analysis. The project will be a foundation for future methods and tool, and strongly contribute to continuous collaboration between the partners.

Planned approach and implementation

The project includes 6 work-packages with clear deliveries for each package in terms of both content and responsibility which are divided between the participating parts. The project begins with a literature survey and finish with applying developed methodology on test cases in full scale. Several work-packages will be performed simultaneously during a total period of 3 years.