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Found 15 results

  1. Hello community, how can I do a parameter sweep in activate? I want to simulate a controller with different parameters for the gain. Afterwards I want to overlay the different system responses in a plot. I defined a vector with different values for the controller gain "KR" and use it in a "MatrixGain"-block. KR = [1 .1 .06 .01 .02]; I hoped that could work but it doesnt. Another approch could be to do it by doing multiple simulations with different parameters. best regards Nils
  2. Hi guys, I'm trying to understand how Hydraulics works in Activate, but I can't figure out what I'm doing wrong. Any help would be usefull, thank you all.
  3. Hi guys, I'm trying to implement a co-simulation using Activate and MotionView, using the Hydraulic tools, but I'm getting this error at the very beginning of the simulation. How can I fix it? I got version 14 of Visual C++ Thank you all
  4. Hello, I am new to Altair Embed and would like to know if there is a way to import Activate models into Embed?? There is an option to import Simulink models but that does not support the .scm extension of Activate models. I could not find any other documentation regarding this, so would like to get some suggestions or workarounds for this problem. I am using basic 2019.1 versions of both Activate and Embed. Thank you, Rajath
  5. Hi all, Activate 2017.2 shows that it requires a Visual c++ compiler in spite of installing of the visual studio 2015. Kindly inform the solution of the same.
  6. Hello all, I have a state space system model which takes in 3 inputs and gives a single output which I am trying to model in Activate. The 3 inputs are time series signals and I am currently using lookup tables and the mux block to feed it into the state space block. When I try to run this table, there is inconsistency between the dimension of output port of Mux block and input port of State space block. Any suggestions on how to resolve this? Also open to suggestions of using other convenient blocks for my simulation like signal generator or signalIN blocks. Thanks, Rajath
  7. Hello, These days, I work with Flux coupled with Activate for simulation of contactor dynamic behavior. The contactor has 2 coils, 3 switches. The 3 switch is controlled by activate. While the current of the 2 coils are used as sensor input for Activate. But when I start the simulation, at beginning the current in the coil seems reasonable. But after 5ms, or like this, the current and voltage on the coil starts to become very strange, and non-meaning, just noisy points, I don’t under stand why. I think, the activate only control the switch and do some control, very simple, the Flux finish FEM calculation. When I work with Flux alone, same calculation performed, no noisy points. For solver I use same as tutorial showed for activate and Flux coupling simulation. I hope I can get some help for this topic. Thanks. Activate_couple_Flux_simulation.docx
  8. Dear Experts, My Modelica sript contains the following equation: tan(gamma) = (y - y_b)/(x - x_b); where y, x, x_b, y_b are variables. Please let me have your advice how to avoid zero-division (to avoid to become x=x_b) in Modelica script. When I tried to insert the following statements in Modelica argorithm section: if abs(x-x_b) <= 0.01 then x := x_b + 0.01; end if; of cource, as you expected, Activate issued the error: system is overdetermined. Regards, Minoru Yubuchi
  9. Dear Experts, I would like to know how to switch two Modelica blocks based on a situation of the simulation. For example, please assume two SpringDamper blocks, A and B are contained in an Actibvate model which are applied at the same location. SpringDamper block (A or B)used in the simulation is decided based on situation of simulation and might be changed during the simulation. I created a model (attached) where MoCustomComponent based on Spring is used. In the model, spring constant of the Spring block can be switched during simulation but Spring block cannot be switched in this way? Are there any ways to switch Modelica blocks? Regards, Minoru Yubuchi Model5.scm
  10. Dear Experts, When I ran a Modelica script through MoCustomBlock in Activate, Activate issued the following error: [fmi2GetEventIndicators]: Error at t=7.5262725398123784e+000: index-1 and derivative evaluation failure Failed in updating zero-crossing surfaces. In what case, is this error issued and what should I fix generally? Regards, Minoru Yubuchi
  11. I am going through the tutorials for activate. The pictures showing the OML codes for the pictures are missing in the installation directory. Is there another place to get them?
  12. Hi, can I use hydraulic models from DSHplus together with Activate, e. g. in a co-simulation similar to MotionSolve?
  13. Hi, This question is regarding WinProp WallMan software. I found in my WallMan window that, all options in preprocessing tab are greyed out (disabled). Also, the preprocessing icons on the right side of WallMan window are greyed out too. Can anyone help me to find a way to activate Preprocessing properties. I am in need to run 3D IRT for my simulation which I cannot do without preprocessing data. I highly appreciate your help. Thanks Balaji
  14. Hi, I am trying to do a Monte Carlo simulation on my model. I am varying the inputs based on a Normal distribution to see how the output behaves. I need help with 2 things here. 1. Is there a way to automate the execution of the simulation, so that it simulates multiple times (say 1000 times) 2. is it possible to capture the data in a .csv file by appending it, so that i get data from all the simulations, and that it is not overwritten everytime the simulation runs. BR Saurya
  15. Can we edit user defined Libraries that was created from Activate (.scb)? Yes. File->Library->Manager->Select a library on the disk If you would like to add a new block, select the block and click Add/Replace If you would like to remove an existing block, select the block from the library, and click Remove
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