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Program package "Universal Mechanism" is intended for simulation of kinematics and dynamics of planar and spatial mechanical systems.

The program is oriented to practical engineers, students and teachers, in other words it is oriented to all people who are involved in problems of dynamics of machines and mechanisms. Mechanical systems are described by means of representing them as systems of rigid bodies connected by various kinematical pairs and force elements, so-called multibody systems.

Online animation of motion and plots of dynamical performances are available during simulation. There are lots of measurable dynamical performances of mechanical systems: linear and angular coordinates, velocities and accelerations, active forces and moments, reaction forces, etc.

UM has an advanced postprocessor, which includes: linear analysis, statistics, multivariant calculation, wear and durability analysis and export of results. UM is a useful tool for the computer-aided modeling of multibody and hybrid systems of various types: complex aerospace structures, robots, railway vehicles, automobiles, cable systems, etc. It gives an opportunity to solve both the direct and inverse kinematic, dynamic, and control problems. There are special prices of UM for scientific and educational purposes.

UM includes kernel and number of additional task-oriented modules: UM Automotive, UM Loco, UM Tracked Vehicle, UM CAD Interfaces, UM FEM, UM Experiments, UM Control and others.

Our engineers can help you to carry out dynamic research of your mechanical systems.

Download the latest UM release and know more details about free trial license here.

Using UM for modeling of mechanical systems, main features of the program package, its modules and lots of animations are presented here (PowerPoint presentation, zip-archive, 83 Mb).

Body properties

- Body of any shape
- Automatic calculation of inertia parameters
- Import inertia properties of bodies from Unigraphics NX, SolidWorks, Autodesk Inventor, KOMPAS-3D, Pro/E, PTC Creo.

Joints and constraints

- Rotational, translation, cylindrical, gimbal, general, quaternion joints
- Massless rod
- Import of the kinematic schemes from CAD programs.

Forces

- General, bipolar, contact, special and other forces

Graphical elements

- Polyhedron, ellipse, box, spiral, ellipsoid, cone, parametrical, profile
- Import from ASC and 3DS files
- Import from Unigraphics NX, SolidWorks, Autodesk Inventor, KOMPAS-3D.

Measurable parameters

- Linear and angular coordinates, velocities and accelerations
- Active forces and moments
- Reaction forces
- Other user^,s parameters

Simulation control

- Run, pause, reset, stop the simulation any time
- Control the accuracy of the simulation

User^,s modules definition

Supporting user^,s modules under:
- MS Visual C++;
- Borland C++ Builder;
- Borland/Turbo Delphi;
- any program language/IDE that can output Dynamic-Linked Library (DLL) to be loaded as external libraries.

Visualization

- Object animation
- Trajectories
- Velocities, accelerations, forces, moments as vectors
- All measurable parameters as plots

Import

- 3DS, ASC, STL files
- STEP/IGES files
- KOMPAS 3D, Autodesk Inventor, Unigraphics NX, SolidWorks, Creo, Pro/ENGINEER (graphics and inertia properties)
- Matlab/Simulink models

Export

- BMP files
- Animated GIF files
- AVI files
- Measurable parameters to formatted text files
- Tables and graphs to MS Word and MS Excel

Recommended system requirements

- Microsoft Windows 7/8/10/11
- CPU 3 GHz (multi-core CPU are recommended)
- 8 Gb RAM
- 4 Gb free space on HDD
- up-to-date/professional video card is strongly recommended in the case of working with bodies imported from CAD or FEM software; NVIDIA graphics cards are highly recommended.