DYNAMIC MOTION

NX CAE offers multibody dynamic simulation capabilities that go beyond simple kinematics. Motion simulation calculates the reaction forces, torques, velocities, acceleration and more for mechanical systems. The integration with NX lets engineers directly convert . CAD geometry and assembly constraints into an accurate motion model, while the embedded RecurDyn motion solver and rich post-processing capabilities allow the study of a broad range of product behavior.

Integrated Multibody Dynamics Simulation

Understanding the operating environments for intricate mechanical systems – like the mechanisms in photocopiers, sliding automotive sunroofs, or aircraft wing flaps – can be challenging. Many CAD-based tools offer kinematic solutions that help designers cycle a mechanism through its mechanical path for interference checking. Kinematics alone, however, doesn’t provide all the critical information you need, such as the dynamic loads generated by moving parts that can be used to size motors.

Simcenter 3D offers multi body dynamics simulation capabilities that go beyond simple kinematics. Motion analysis calculates the reaction forces, torques, velocities, acceleration and more for mechanical systems. Simcenter 3D lets you directly convert CAD geometry and assembly constraints into an accurate motion model, while the embedded motion solver and robust postprocessing capabilities allow the study of a broad range of product behaviors.

Rigid Bodies

A complete solution for multibody dynamics and kinematics analysis of rigid body mechanisms. Solutions can also include 2D and 3D contact between complex geometry. Simcenter 3D provides a complete solution for kinematics and dynamic motion analysis of rigid bodies. But what makes Simcenter 3D unique is the ability to use exact geometry to define the motion mechanism. Simcenter 3D can automatically create a motion model based on a CAD assembly by defining each part of the assembly as the rigid body, and converting each assembly constraint into the appropriate motion connection. Simcenter 3D can also easily model and simulate contact between 3D bodies, and an additional benefit of using the exact geometry is that contact analysis will also be accurate.

Simcenter 3D motion analysis directly converts the CAD assembly into a functioning motion analysis model. Additionally, the motion model is associative to the CAD geometry, which means the motion model will automatically update when the CAD design changes. Supported motion modeling features include:

  • Mechanical joints
  • Constraints
  • Springs
  • Bushings
  • Dampers
  • 2D and 3D contact
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