FEDEM Mechanical - a virtual laboratory for testing how your mechanical system will perform
FEDEM Mechanical is the basic platform. It lets you model all kind of mechanical systems, ranging from micro-electronics and vehicle suspensions to satellites and aircraft systems. The strength is the ability to describe the right physics and the versatility in modelling.
Elastic Multibody Dynamics
Multi-body dynamical systems are modeled starting with CAD-components or with FE-components. In the latter case, the flexibility of the component, as well as the internal vibrational and dynamic properties are completely integrated in the simulation. The FE-components can be created by importing and meshing CAD geometries with the built-in mesher, or by importing meshed components via the industry-standard Nastran bulk data format, or SESAM format.
Automatic Superelement Reduction
Before the dynamics solver starts, the FE components are automatically reduced to a superelement, keeping the number of active degrees of freedom (DOFs) to a minimum giving an efficient simulation. Fedem uses a combined static and dynamic reduction, so that internal vibrational modes are accounted for.
Non-linear Versatile Joints
Joints are use to describe coupling between components, such as bearings, bushings, springs and dampers. All 6 DOFs of a joint can be given non-linear stiffness and/or damping, or one can apply prescribed motions or forces. Joints can also be used to represent motors, actuators, hydraulics or discrete point of contact.
Control System Editor
Fedem comes with an embedded graphical designer for building custom control systems. Inputs can be any physical variable from the simulation, function thereof, or data from file. The output from your control system can be set to control forces or motion in joints or any other input variable in the model.
Often it is desired to run numerous simulation events on the same model, but with some difference in the conditions or loads. For example in fatigue-life assessments. Fedem has functionality for defining case variations and automatically run all cases. Parallel runs will automatically be started on each available CPU core, until all cases are completed.
A powerful curve plotter is used to view any result variable from the simulation. Curves may be produced on the fly runtime. FFT-plot, curve statistics and data export is available. 3D animation of the model can viewed runtime. This includes deformed configuration from time history simulation, vibration mode shape animation, as well as stress and fatgue contours on FE components.
A large numbers of tools are available for fatigue analysis: Virtual strain gauges can be applied on FE components and produce stress curves similar to real strain gauges. Fatige results on curve data using predefined or user defined S-N curves. Multi event simulation for life-cycle simulations. Fatigue contours on element model components.
Please see the feature comparison for detailed features.