MAMBA
Overview
MAMBA at a glance
The MAMBA simulation process for the dynamics of jointed structures consists of two major steps.
The first one is the nonlinear model order reduction where MAMBA computes an extended reduction basis which explicitly takes into account the local displacements within the contact interfaces. The actual model reduction is carried out by a commercial finite element solver.
The second one is the contact simulation where MAMBA computes the contact stresses and extends the equations of motion accordingly. The time integration of the resulting nonlinear model is carried out by a commercial multibody system solver or by the MAMBA solver.
Model Reduction
The MAMBA model order reduction is a modal approach utilizing an extended reduction basis capable of capturing the occurring contact stresses. This functionality is accessible within a preprocessing module that interacts with commercial FEM solvers and offers the following benefits.
- Automated detection of contact interfaces
- Contact ready model reduction
- Pretension of bolted connections
Preprocessing
Contact Simulation
The MAMBA contact simulation relies on the streamlined model for the jointed structure. This model then is analyzed either as part of a multibody dynamics model or as a free body with imposed interface loads. The first analysis setting is denoted as “Multibody Solution” while the second is denoted as “Standalone Solution”.
The next picture illustrates both analysis settings based on an exemplary dynamic contact simulation of a car body structure.
This is the preferred option in case the contact stresses within the jointed structure influence the global behavior of the multibody system.
- Seamless integration into flexible multibody dynamic models
- Capture contact within flexible bodies
Multibody Solution
This is the optimal choice in case the interface loads are independent from the contact stresses and available in advance
- Wizard for fast setup of the simulation model
- Tailored solver for short contact analysis time
- Parallel simulation of maneuvers
Standalone Solution
