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RBSDYN
RBSDYN is a tool for pre-design, design and expertise of rolling bearings (ball with 2 or 4 contact points, cylindrical and tapered rollers). The software calculates the load distribution between the bearing's rolling elements of whatever its origin such as mechanical, thermal and also the races' fittings inside the housing and onto the shaft. The load distribution is computed according to the mounting features (hard or compliant preload, outer forces, mounting conditions) and also from the rotor, housing and rolling bearings flexibilities. The software implements a 2-D axisymmetric finite element code combined with dedicated rolling bearing program. This association permits mainly to account for the rolling bearings non-linear stiffnesses. This makes it possible to integrate the dynamic behaviour of the bearing by a digital time step algorithm.
RBSDYN also uses skill models issued from the expertise which allows representing the behaviour of some specific parts such as press-fit bushings and spacers. The software enables to import stiffness, mass and damping matrices which are defined over a given number of nodes and also export the matrices built from the model construction, notably the stiffness matrice specified at a given node. It can also model specific parts such as membranes or infinitely stiff bodies.
RBSDYN computes stiffnesses of the rolling bearings, the bearing and the entire model.
The software provides the modal analysis from the linearized model given by the preloaded equilibrium. This stage enables to optimise the whole bearing features with respect to the outer loads and the required rolling bearing life span.
Code language:
C++ and FORTRAN. RBSDYN is delivered through an installer file.
Version:
RBSDYN V4.4.2.1 of the 13th of September 2018.
Content of downloading:
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CNES-RBSDYN-CSM-v4.4.2-FR.xlsx |
suivi des modifications |
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CNES-RBSDYN-CSM-v4.4.2-EN.xlsx |
Changes tracking file |
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SetupRbsdyn 4.4.2.exe |
Software installer program |
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CNES-RBSDYN-MU-FR-v4.4.2.pdf |
User’s manuel in French |
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CNES-RBSDYN-MU-EN-v4.4.2.pdf |
User’s manuel in English |
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DSO-TB-MS-2018.0017243-RBSDYN 4.4.2-Latest improvements.pdf |
2018-11-19 |
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DSO-TB-MS 2019.0006755-RBSDYN 4.4.2.1-software validation.pdf |
2019-5-24 |
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Codes_RBSDYN_4.4.xml |
Kee_code valid within the calendar year |
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Exemple.rbd |
a model example |
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WS_03_RBSDYN presentation_CNES.pdf |
RBSDYN presentation at CNES |
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WorkShop MS 13 Sept2012 Rbsdyn EN.pdf |
RBSDYN presentation at ESA |
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RBSDyn-FC2_Formation__FR.pdf |
Information about training |
Operating system:
RBSDYN can be operated on PC fitted with an operating system from Windows XP and upper. (See the user's manual for more details about the required configurations).
Get in touch:
For any further information get in touch with us at: rbsdyn@cnes.fr