Flexible Gears
|
Full title: |
Flexible Gears (MBS) |
| Duration: |
01/2015 – 12/2020 |
|
Contributors: |
Dipl.-Ing. Georg Breslau (TU Dresden, IMM) |
| Objective: | Multi-Body-Systems (MBS) used for dynamic analyses of drive systems offer the possibility to include elastic gear wheel bodies. The involvement of fully flexible gears is of special interest, if the gear wheel's deflections crucially affect the gear mesh. Suitable applications for the investigated method are thin rimmed gears of internal gears or weight-optimized gear designs. A further field of application is the numerical analysis of wheel body resonances, which can be relevant for high-speed drive systems, especially those with complex wheel body geometries. |
| Approach: |
The representation of elastic wheel bodies within the MBS environment is based on the integration of finite- element models describing the gears. A fully parameterized and automated mesh generator for internal and external gears is utilized for building the FE-models. Thereafter a model order reduction by means of Craig-Bampton Component Mode Synthesis (CMS) is carried out. Within the MBS program SIMPACK, the static and dynamic deformation behavior of the wheel body is no longer described by the reduced system matrices, rather represented by modal superposition. This approach allows the realistic and at the same time a computationally efficient simulation of geared drive systems. |
| Results: |
Comparisons with equivalent finite element models (ANSYS) verify the results' accuracy. An investigation of the load distribution and the dynamic system behaviour can be performed depending on the wheel body construction and the manufacturing process. . |
© IMM
© IMM
© IMM
