Modelling and simulation of roller bearings
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Full title: |
Modelling and simulation of roller bearings |
| Duration: |
01/2015 – 12/2020 |
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Contributor: |
Dipl.-Ing. Georg Breslau (TU Dresden, IMM) |
| Objective: |
DIN ISO 281 serves a standard, which is used for the computation of bearing stiffness of cylindrical roller bearings and ball bearings in most calculation programs. The objective is to develop a computationally efficient and fully parameterized bearing substitute model for different simulation environments based on the finite element method (FEM). In particular, the integrated bearing model for holistic system simulations offers the advantage of a closed analysis in which all interactions between bearing, shaft, gear and the elastic environment are taken into account. Therefore, the use of this method offers special advantages for systems with high flexibility. Practical application examples are directly mounted planetary gear wheels and flexible housing structures in large and heavy machinery construction. |
| Approach: | Approaches for substitute modelling are developed for efficient, numerical simulations of roller bearings. The stiffness calculations for roller bearings according to DIN ISO 281 represent the basis for this. The use of a lamina (slice) discretization enables optimal performance and representation accuracy for the stiffness and load distribution calculation. |
| Results: |
By means of the present calculation model, the gear or housing deformations can be determined and at the same time a prediction can be made on the resulting additional bearing load. In addition to the compliance calculation in the overall system, the bearing substitute models can be used for pressure and service life calculation as well as for the determination of the dynamic transmission behaviour. |
© IMM
© IMM
© IMM
