SimCreator Multibody Dynamics Component Library

Multibody Dynamics Library is a collection of components made to augment the Standard Library that ship with Realtime Technologies' SimCreator software package. It includes base bodies, joints, masses and cut joints.  The joints included in this collection are prismatic, revolute, cylindrical, universal, screw and spherical.  You can use cut spherical joints to model closed loop systems.

You can also model complete tree systems using merges, masses and offsets.  This library supports fixed and 6DOF base bodies.  You can accurately model complete closed kinematic systems -- in real time.

Read Me

Click on the component name to access more detailed component information.
 

Demos

View double pendulum or four-bar linkage showing accuracy and flexibility of dynamics and  animated results.  Four-bar linkage also shows closed kinematic loops.
 


Double pendulum demo

4 Bar linkage demo

Double Pendulum
2.32 Mb wmv

4 Bar Linkage
1 Mb wm

 

Downloads

Multibody Dynamics Component Data Sheet (pdf)
Multibody Dynamics Training Slide Presentation (ppt)
SimCreator & Multibody
Dynamics Introduction (ppt)
 

Quick Nav

 

Base Bodies

Earth
Models a base body for multibody simulations with no degrees of freedom.

SixDOFMB
Models a base body with six degrees of freedom.

Joints

CylindricalJoint
Models a cylindrical joint with a one linear and one angular degree of freedom and a mass.

PrismaticJoint
Models a prismatic joint with a single linear degree of freedom and a mass.

ScrewJoint
Models a screw joint with a single degree of freedom and a mass.

SphericalJoint
Models a spherical joint with three rotational degrees of freedom and a mass.

UniversalJoint
Models a universal joint with two angular degrees of freedom and a mass.

RevoluteJoint
M
odels both a revolute mechanism and a body with Mass and angular Inertia.

Cut Joints

CutSpherical
Models a cut spherical joint.

DistCont
Models a distance constraint.

Mechanisms

ForcesMergeMB
Models a merging of branches of a multibody dynamics model.

MassMB
Models a mass in a multibody dynamics chain with an inertia along the principle axes.

OffsetMB
Models an offset in a multibody dynamics chain.

Prismatic
Models a prismatic mechanism with a single linear degree of freedom

Revolute
Models a revolute joint with a single rotational degree of freedom and a mass.

RotateMB
Rotates the local coordinate system in a multibody dynamics chain.

Screw
Models a screw mechanism with a single degree of freedom

Spherical
Models a spherical joint with three rotational degrees of freedom and a mass.

TSDA
Models a translational spring damper actuator.

 

Support

AccelOffset
Calculates the acceleration at an offset.

AngleIntegrator
Calculates the integral of an angular rate signal.

AngVel2EulRate
Calculates the Euler angle rate based on the angular velocity.

Euler2TM
Converts a set of Euler Angles into a transformation matrix.

EulRate2AngVel
Converts a set of Euler Angles into a transformation matrix.

TM2Euler
Calculates the angular velocity of a body given the euler angle rates.

TMTransXVector
Converts a vector between coordinate systems using a transposed transformation matrix.

TMXTM
Concatenates two transformation matrixes.

TMXVector
Converts a vector between coordinate systems using a transformation matrix.

TransposeMatrix
C
alculates TM by transposing the input TMI.

ZeroForce
A
ssigns a zero force and moment on a multibody side connector.

 

     
 
 
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Realtime Technologies, Inc.
Copyright 2004-2013 Realtime Technologies Inc. All rights reserved.

Realtime Technologies Inc. (RTI) specializes in real time multibody vehicle dynamics, and graphical simulation and modeling.  We offer simulation software applications, consulting, custom engineering, software, and hardware development.  Realtime Technologies’ customer base includes international, government and private entities.  RTI was founded in 1998.