- Over 86,000 users in 95 countries
- One software package for all application areas
- Free support by experienced engineers
- Short learning time and intuitive / self-explanatory software
- Excellent price-performance ratio
- Flexible modular concept that can be extended as required
- Scalable license system with single-user and network licenses
- Respected and proven software in many well-known projects
Why Dlubal Software?
Wind Simulation & Wind Load Generation
With the stand -alone program RWIND Simulation, you can simulate wind flows around simple or complex structures by means of a digital wind tunnel.
The generated wind loads acting on these objects can be imported to RFEM or RSTAB.
In order to apply loads that are variable over height and perimeter to rotationally symmetrical objects, there is the free variable load in RFEM.
In RFEM, you can create screw lines using the line of type “Trajectory”. For this, you need a center line / guide line about which the line can be modeled, as well as a start and end point. Then, you can create a line of type Trajectory between the start and end point, which initially appears as a straight line.
In RFEM and RSTAB, parameterization provides you many options, especially for recurring structural elements. Within the parameterization tool, you can access the internal values of a model, for example the values of a selected cross‑section. The following example shows you how this can work.
Inserting holes in surfaces is very easy due to a large selection of tools. In order to insert holes or drilling in solids, it is important to note that an opening must be created at the start and end of a continuous hole and also a surface that separates the hole from the solid.
To simulate a support clearance in a connection between members, you can use the "Diagram" function for member hinges. To use this function, first define the according degree of freedom as release. Then, you can select the "Diagram" function form the drop‑down list.
For some structures, it is necessary to design them in different configurations. It may be that an aerial work platform must be analyzed in its position on the ground as well as in the middle and in the extended position. Since such tasks require the creation of several models, which are almost identical, updating all models with just one mouse click is a considerable relief.
If a rib is part of a nonlinear design or is rigidly connected to following walls, a surface should be used for the modeling instead of a member. So that the rib can still be designed as a member, a result member with the correct eccentricity is required, which transforms the surface internal forces into member internal forces.
If you read out the results of a surface via the COM interface, you get a one-dimensional field with all results at the FE nodes or grid points. To get the results on the edge of a surface or along a line within the surfaces, you have to filter out the results in the area of the line. The following article describes a function for this step.
When editing elements via the COM interface, selecting elements is often a problem because it cannot be carried out visually via the work window. The selection can be particularly difficult for models that have been created via the program interface and are then to be modified using a separate program. Besides the exception, when the selection was made previously via RFEM, there are several alternatives for programming.
The deformations of the FE nodes are always the first result of an FE calculation. Based on these deformations and the stiffness of the elements, it is possible to calculate strains, internal forces, and stresses.
Do you have questions or need advice?
Contact our free e-mail, chat, or forum support or find various suggested solutions and useful tips on our FAQ page.
Customer Support 24/7