After downloading the examples, start HOTINT and open the tutorial with “Open MBS”.
Description: A simple example for HOTINT beginners: The dynamic simulation of a double pendulum.
Keywords: rigid bodies, gravity, spherical joint, point mass
Download example: double_pendulum.txt
This example is described in more detail with several controller realisation on this page.
Description: In this example a PD controller is tested in a dynamic simulation. An inverse pendulum is mounted on a cart. The angle of the pendulum and the position of the cart are measured. These values are used by a controller to stabilize the pendulum by adjusting a force acting on the cart. The dynamic simulation shows the response of the mechatronic system to a disturbance.
Keywords: inverse pendulum, prismatic joint, gravity, control, mechatronic simulation
Download example: balancing_cart.txt
Description: This rotordynamics example simulates the run up of a rotor though the first eigenfrequency of the system.
Keywords: rigid body, rotor dynamics, bearing stiffness, excentricity, acceleration, moment, load geometry, compute inertia
Description: In this example a full mechatronic system is simulated. The beams of the robot are modeled flexible in order to obtain the vibrations arising when the robot follows a predefined path. The flexible multibody system consists of 10 bodies and 21 constraints.
Keywords: rigid bodies, linear beams, prismatic joint, rigid joint, control
Description: This example simulates the vibrations occurring in the bearings of a 3DOF robot, when the robot follows a predefined path.
Keywords: rigid bodies, revolute joint, control, gravity, bearing stiffness
Description: This example shows the usage of beam elements suitable for large deformations. For detailed information about the theory behind the used formulation of these beams see Publications.
Keywords: beam, large deformation
Download example: ANCFBeam3DTorsion_large_deformation.txt
Description: The Campbell diagram of a simple rotor geometry is calculated.
Keywords: Campbell diagram, beams
Download example: campbell.txt
Description: In this example parameter variation is used to determine the first resonance frequency of the damped multibody system through dynamic simulation.
Keywords: parameter variation, dynamic simulation, point mass, spring damper, sinusoidal driving force
Download example: two_mass_oscillator.txt
In the following Youtube tutorial the creation of this model is explained:
In this Youtube tutorial the parameter variation feature is used to get the first resonance frequency of the system: