SAM 7.0 is now available
- User Defined Results (only in SAM Professional)
A sophisticated formula parser offers the possibility to combine simulation results in multiple ways to derive user defined results.
- Constrained Optimization (only in SAM Professional)
The feature of User Defined Results opens the path to perform constrained optimization by adding the constraint condition as a penalty function to the original function one is optimizing.
- Easy Calculation of Bearing Forces in Moving Joints
The calculation of bearing forces in joints is now equally easy for fixed and for moving joints. In previous versions of SAM the calculation of bearing forces in moving joints required manual steps, which have been eliminated.
- New Transformation & Grouping Commands
New transformation (mirror, translation, rotation, ..) and grouping commands have been added that allow the user to easily modify elements/mechanisms but also graphical items.
- New Licensing System
The new licensing system supports node-locked licenses and floating licenses. It is a two-step approach in which customers first receive an activation ticket. During the activation process, which requires internet access to send information to our central license manager, the final license will be generated and send to the customer.
- Various Smaller Enhancements
Display of a scale; export selection & reordering of a subset of results; when exporting a mechanism as DXF file also the displayed trajectories/path(s) are exported, ...
This video demonstrates some of the new features of the mechanism design tool SAM 7.0:
- easy calculation of bearing forces
- user defined results (post-processing)
- constrained optimization (penalty functions)
- selection/sequence of export results
- node-locked and floating/network licenses
Annual License is now availableIn order to better meet the needs of our customers we have introduced the concept of ANNUAL LICENSES next to the already existing PERPETUAL LICENSES.
It is now possible to obtain an annual license without any entry fee or obligation to continue after one year. Neither is there any automatic continuation of the license period. An annual license is always based on the latest available version of the software, so you are always up-to-date.
New Video AddedSimulation using belts and chains added. Go to our Youtube channel.
SAM 6.1.55 is availableThe following issues are solved in this update:
- "Division by zero" crash in case the Snap-To-Coordinate grid size is accidentally equal to zero in Preferences > Mouse > Mouse Snap.
- In the absence of a loaded project file an incorrect indication of the Unit System in Preferences>Number/Units>Setup Units might occur, in which case it does not correspond to the underlying units of position, velocity, ...
- Error message "Synchronisation of motions and/or loads not correct", while the tolerance limits under Preferences>Analysis>Solver Options are such that the deviations are smaller than the tolerance and the analysis should have been carried out.
What's new in SAM 6.0?Optimization (Professional version of SAM only)
Taking the initial design/topology as a starting point one can for example further improve the quality in which the trajectory of a coupler point equals the target trajectory by changing the geometry of the mechanism within pre-defined ranges. Or one can minimize the peak or RMS value of the driving torque of a mechanism by adding a compensating mass and let SAM determine the optimal value of the mass and its position within the allowable range. Just as in the case of the trajectory optimization one can also specify a reference function and minimize the difference between the actual and the reference function. When designing for example fitness equipment one is generally seeking a predefined force as function of displacement.
The goal for optimization can be the minimization or maximization of a variety of properties (peak, RMS, average, ...) of the difference between the actual and the target behavior of a mechanism, such as:
Trajectory of a node (with of without prescribed timing)
Any motion or force quantity (as function of time or another quantity)
SAM seeks the optimum by modifying the following properties within user-defined ranges:
Geometry of mechanism
Element properties, such mass, spring constant, transmission ratio, ...
The optimization process in SAM is based on a two step approach, consisting of :
Exploration of the design space
Optimization of a specific solution
Context-Sensitive Right Mouse Button
In previous versions of SAM the user interaction model was based on "Select action from menu or toolbar, then select item to apply action to", for example Delete Element followed by a selection of the element to be deleted. Many programs, such as Microsoft Office, use a different approach which is based on "Select an item and press right mouse key to see which actions can be applied to the selected item". In order to satisfy both experienced SAM users and novice users which are used to the Microsoft Office approach, SAM 6.0 supports both user interaction approaches.