FE-Based Tooth Contact Analysis “FE-Stirnradkette”
To ensure a gear design which fits the necessary requirements in the development process, comprehensive knowledge of the influence of geometry parameters as well as manufacturing and assembly related deviations onto the operational behavior is essential. The tooth contact analysis enables the engineer to determine the operational behavior of gears. Thus, a gear design with a high durability, low noise emission as well as function-oriented tolerancing of the gear geometry is achieved. The FE-based tooth contact analysis “FE-Stirnradkette” (FE-cylindrical gear calculation chain) enables a manufacturing and operational-focussed design of cylindrical gears due to the exact modelling of the gears macro and micro geometry, as well as a fast variant calculation option.
The “FE-Stirnradkette” has been continuously improved and expanded in previous re-search projects. Latest developments include the modelling of freely formed tooth root ge-ometries, e.g. from contour measurements (FVA 709 I). Furthermore, asymmetrical tooth profiles have been introduced to the program (FVA 484 I – III).
The aim of current research activities is to simulate the influence of reverse bending on tooth root load carrying capacity as well as validating these simulations in running tests (FVA 718). The representation of mesh interactions and their influence on the operational behavior, e.g. in planetary gear sets is the subject of further research activities (FVA 377 II). The modelling of complex gear body geometries and their influence on the mesh stiff-ness via free FE-meshes is investigated and realized in the research project FVA 484 V. Finally, the “FE-Stirnradkette” is expanded by a module to optimize tooth root geometries in order to increase tooth root load carrying capacity depending on manufacturing tech-nology (FVA 709 II).
Jonas Pollaschek, M.Sc.
Tel.: +49 241 80-26385
Fax: +49 241 80-22293