When on the search tab of the Autodesk Simulation Mechanical Help, it is possible to choose from certain areas to search in for returns of topics. The current list is; Everywhere, Getting Started, Learn & Explore, Downloads, Troubleshooting and Installation & Deployment. I would like to be able to narrow this search only to the core documentation written for the software. I would like this pull down list needs to have an option for "User's Guide" only.
Some time you have a skeleton from FrameGenerator that you need to analyze more deep than Frame Analysis.
It would be very useful to send a part to SIM MECH that contains 2D or 3D Sketches.
Then at Sim Mech, uses beam elementos to simplify the modelling....
I would like the ability to work on one design scenario while another scenario is busy doing something else.
For example, if a model is meshing in design scenario 1, or if the analysis is running in design scenario 1, I would like to be able to setup a model in design scenario 2, 3, whatever.
It would be awesome if you can add more units. Like tons etc. And add a weld connections. Like weld mesh generator. Like if we click on an edge we could add a weld in it and define what type of weld and put thickness to it. And add more materials please. AH36 etc. And make it even friendly user. Surely if you could done this properly you could beat others software.
Thanks and more power Acad. sim.Mech,
We often use different Design scenarios to analyze the same geometry with different loading combinations.
Ideally we would just use one Design Scenario and multiple Load Cases. Since a load can only be applied to one Load Case, it forces users to either duplicate the loads if used in multiple combinations, or use the Combine Load Cases tool in the Results Options which increases the complexity of a project.
I would rather see an option that let users assign a load to multiple load cases in the load creation dialog.
This could be done by using commas between the load case numbers, or a more advanced dialog that is similar to the Combine Load Case tools were a table of load cases and multipliers could be entered.
Or perhaps a new tool that is separate from the dialog boxes could be created. The user could assign different loads to Load Cases and use multipliers in a table. The loads could be assigned to named groups(ex. Live Load, Dead Load, Pressure) and those groups could be used in the tables as well.
With named groups you could export commonly used combinations (ex. 1/2 Wind + LL + DL) and import the combinations in new models. Any loads created could be assigned to the appropriate group and the combinations would be automatically configured.
Currently if the model changes, we delete all of the design scenarios except for the 'Base DS', change the Base DS and recreate all of the loading combinations in new design scenarios by activating or suppressing the necessary loads and constraints.
A feature or tool like this would significantly reduce design times, especially when geometry changes arise.
I often struggle with selecting continuous internal surfaces in structures like pumps, pipes and tubes in CAE tools.
A typical reason why I would want to select all the internal surfaces would be to add internal pressure in a pressure vessel or in a pump. I often use the "more neighbors" command within Simulation Mechanical for this purpose, but as you may already know, this command only works for visible "lines" and not "surfaces".
It would be useful if "more neighbors" function worked with visible "surfaces" as well.
I know frequency vs. amplitude/magnitude plot can be plotted by using EXCEL macro (provided by Autodesk) in post-processing of a frequency response analysis. I hope that the frequency vs. amplitude/magnitude plot and phase plot (i.e. Bode Plot) are plotted in Sim-Mech Results Environment without EXCEL macros.
The idea would be to keep the parameters previously set.
Actually if you have to run a second simulation, you have to enter again all the parameters...
2. During the post processing in Asim Mech GUI
- we often have to go back to the pre processing tab, and then to the results one
- in the fatigue results,having available only the results relative to the method we chose (EN, SN or FOS)
It would be slick if the TAB key would advance to the next input field in a dialog box. Kinda like it does in other programs.
For example, if I'm entering a nodal force and I'm entering a custom direction it would be handy if I could enter the value in the 'X' direction, hit TAB, and have the curser advance to the 'Y' direction field.
I often work with large plate structures with many overlapping parts that are welded or bolted. Using midplane mesh should be the best way to achieve this to achieve a reasonable run time/accuracy compromise. With the help of your support staff, we have explored the many ways to achieve this but have found that midplane meshing is too hard to use (see my posts or history with subscription centre).
I found that I have to resort to using 20 node brick elements often only 1 element thick to achieve a reasonable run time/accuracy compromise.
What would be very helpful is to add a way of adding contacts between midplane meshed parts just like between solid elements (i.e. bonded, welded contacts etc). Hopefully this could be done automatically or manually.
In addition, It would be great if we could add bolts to midplane meshed parts just like solid meshed parts.
Along with this, it would be wonderful to have an easy method of adding welds between midplane meshed parts.
Fatigue tool is great in many sense but the currect application is 32bit and fails to work on large models. Can we upgrade the fatigue tool to 64bit so one can work with larger models.
Alternatively, the interface can be adjusted to selectively transfer parts to fatigue tools. Currently this can be done only after whole model is read into the fatigue wizard application, which creates the bottle neck. It may be just easier to add this filter funtionality to enable working with larger models.
The temperature gradient -- delta Temperature/distance = dT/dL -- can be an important result for some situations, such as the manufacturing of telescope mirrors. In all situations, a large temperature gradient leads to high thermal stress which can be a concern of everyone. I wish the software would plot a color contour of the temperature gradient.
Note that a user can use the Custom results to plot dT/dL in some circumstances. This equation for conduction through a material, Q = (k*A/L)*dT, can be re-written as dT/L = (Q/A)*(1/k). The software already calculates Q/A and displays it as the "Heat Flux". The Custom result will display the temperature gradient IF the thermal conductivity is independent of temperature. When the material model is temperature dependent, a Custom result will not work because it cannot interpolate the input thermal conductivity at the calculated temperature of the element. I am not sure if the Custom result will work for an orthotropic material.
Since the Heat Flux Q/A is a vector result, the temperature gradient plot should also have all of the capabilities associated with this type of result; namely:
- X component
- Y component
- Z component
- Vector Plot
I often use Sim-CFD to calculate the pressure drop and velocity profile of my fluid models, and I need an easy to use method to map those pressure results to SIM-Mech so I can study the deformation and stresses in the solid parts.
I frequently model structures that have thin cross sections but are welded and oriented in ways that make plate/shell elements undesirable. It would be nice to be able to define requirements for meshing brick/tet elements such that one could have greater control over their generation.
An example of this is a welded structure of thin walled square tubing where von Mises stress is important to the design. The ability to control the meshing so that there are at least 3 elements through the thickness of the tubing but the elements are long and slender enough that there isn't too many elements would be advantageous. Additionally, this may help minimize the issue when the mesher goes into the mode where is "Closes Remaining Voids" ad infinitum.
Perhaps one way of doing this is to select two surfaces and define a minimum number of elements that must be placed in between them for standard brick/tet elements. Thoughts?
A feature I think would be useful for a lot of people would be to insert the possibility of selecting the the coordinate system of the FORCE regardless of the coordinate system of the element to which it is attached.
The reason for this is that:
1- You must change the edge's coordinate system in order to change the coordinate system of the edge force you apply to that edge.
2- In MES, if you have the edge in a different coordinate system, it is harder for the model to converge.
My short wish list:
1) The program to be reconfigured so that when you kill a meshing session, kill an analysis the program QUICKLY,
completely terminates such that you can proceed with your changes.
2) All windows are closed at the same location ie at the lower RH of the window is where the box to click would be located.
3) A part in the model can be updated from the solid model instead of re-importing the entire model and re-establishing all the node based features that were lost.
4) The bugs that I found and were reported to the developers were actually corrected.
I am going to stop there. Thanks.
I would like to be able to lay out my mixed model (wireframe+solids) in Inventor and then export wireframe and solids into a single model in Autodesk Simulation Mechanical.
Today we can only import Surface and Solid parts from Inventor to Simulation Mechanical.
It would be great if we can import Wireframe geometry in addition to Solids and Surfaces directly from Inventor to Simulation Mechanical, instead of having to convert the wireframe objects to an IGES file.
ABAQUS has a results feature in their 2D models that provides the contact pressure between two surfaces. This would be very useful when determining how much two surfaces are in contact (i.e. gaskets for instance). Currently Simulation only has a feature for 3D.