Multibody Simulation for Dynamic Systems

Model Development – Analysis – Evaluation – Optimisation

UNIKE helps companies use multibody simulation to analyse motion, forces, loads and dynamic interactions in technical systems. This makes it possible to identify development risks early, compare design alternatives and use prototypes more effectively. Multibody simulation is particularly valuable where joints, bearings, contacts, drives and control systems interact. We consider not only individual components, but also the behaviour of the complete system under realistic boundary conditions.

What Results Does Multibody Simulation Provide?

Typical results include motion histories, forces, reaction loads, contact conditions, critical load cases and insights into the dynamic behaviour of the system.

Our Services

  • Motion and kinematic analysis
  • Evaluation of forces, loads and reaction quantities
  • Investigation of contact, bearing and joint behaviour
  • Analysis of the interaction between mechanical and control systems
  • Comparison and optimisation of design alternatives during early development
  • Component design optimised for the intended function
  • Visualisation of deformations
  • Elastokinematic systems accounting for the inherent stiffness of the bodies in the mechanism
  • Simulation of mechanisms with nonlinear component behaviour, such as predetermined break points under overload or controlled plastic deformation
We use Adams for these analyses.
Evaluation of spring force histories, joint forces and damper forces in a convertible roof latching mechanism using a transient multibody simulation in MSC Adams.

MSC Adams: force evaluation of a convertible roof latching mechanism.

Transient multibody simulation with flexible bodies in MSC Adams, showing equivalent stresses and loads on a wind turbine tower and rotor blades. The simulation also includes the planetary gearbox with a double Ravigneaux gearset upstream of the generator. The gearbox and generator were modelled using Adams Machinery.

Wind turbine in MSC Adams: flexible structure and drivetrain modelled with Adams Machinery.

Transient multibody simulation in MSC Adams, showing joint forces and von Mises stresses in a fully extended landing flap during approach. Motion is provided by the gearbox and screw actuators, controlled using Adams Controls.

Extended landing flap: joint forces and stresses in a transient MSC Adams simulation.

Mechanically expandable downhole centralizer, as used in oil, gas and geothermal drilling. MSC Adams multibody simulation with flexible bodies, showing stresses in the bodies and force vectors at the joints.

Expandable downhole centralizer: stresses and joint forces in a flexible-body MSC Adams model.

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