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How to combine models of front and rear suspension created in Adams?

How to combine models of front and rear suspension created in Adams?

How to combine models of front and rear suspension created in Adams?

(OP)
Front suspension from a motorcycle. The elements of the front suspension are imported from Parasolid and the compounds are specified.
The rear double wishbone suspension is taken from the Adams templates.
For further research of the vehicle it is necessary to combine the front and rear suspension. Importing the front suspension to .cmd gives errors in Adams.Car. How to combine suspension? If you fail to do this in Adams.Car, how to test the vehicle in Adams.View?

RE: How to combine models of front and rear suspension created in Adams?

ADAMS doesn't understand the parasolid mechanism, it just thinks you have a bunch of pretty shapes. Usually you'd attach them to ADAMS parts, for graphical display.

So, look in ADAMS/Car and see if there is a suitable front motorbike suspension. If so then modify it with your geometry and component values.

If there isn't, then you can either build one in template builder, or build the whole thing in /View.

Cheers

Greg Locock


New here? Try reading these, they might help FAQ731-376: Eng-Tips.com Forum Policies http://eng-tips.com/market.cfm?

RE: How to combine models of front and rear suspension created in Adams?

Double-wishbone rear suspension on a motorcycle??

RE: How to combine models of front and rear suspension created in Adams?

(OP)
Thanks for the answer.
Need to analyze the trike.
How does Adams.View combine 2 files with saving connections? When importing from command file .cmd, there is no selection of the file to which you want to import.

RE: How to combine models of front and rear suspension created in Adams?

I don't know. Perhaps you could explain your issue to MSC, but I think the most likely answer is that ADAMS cannot understand the actual mechanism in your parasolid file.

Cheers

Greg Locock


New here? Try reading these, they might help FAQ731-376: Eng-Tips.com Forum Policies http://eng-tips.com/market.cfm?

RE: How to combine models of front and rear suspension created in Adams?

Greetings, qwertyazat. I can ask about what kind of tests you want to carry out with the suspension? If this is some kind of standard loading, then it is better to use Adams Car templates, slightly modified for your geometry, on Greg's advice. If you want to conduct a more difficult test, then of course AView. To solve the problem with the import of cmd, try to create 2 models in one bin-file: for example, in addition to MODEL_1 with the imported front suspension, create MODEL_2 by typing “model create model_name = MODEL_2” in the Command Window F3. Then import there or create a rear suspension. After that, merge into one through the Tools-Merge_two_models menu. If you use this way, then there should not be conflicts with the same identifiers Joint, Parts and others.

RE: How to combine models of front and rear suspension created in Adams?

(OP)
Thanks for the answer, this is the answer that I needed. I need to conduct standard tests in Adams.View because there are no suitable front suspension templates.
Could you give examples of how these works are performed in Adams.View and explain what this error is connected with.
ERROR: No VARIABLE/29 in call to SYSFNC/SYSARY/SYSPAR
Measure VARVAL(29), requested in call from DIFSUB(2, 903, 1, 0, 1, 2, 29, -20000, 40000, -250, 250, 1, 1, 1)
ERROR: acf_act_con_loa: Error accessing the feedback VARIABLE value
ID = 2

ERROR: Encountered error "
Adams Solver (C++) run terminating due to STOP requested by user.
" while processing user subroutine for asdasdzxcxc.testrig.left_vertical_controller

ERROR: Abnormal termination encountered in Adams Solver.

RE: How to combine models of front and rear suspension created in Adams?

If I understand correctly, these are errors from Adams Car. Due to which of the embedded tests do they arise?I am not very good at parsing message logs, but judging by the line "... asdasdzxcxc.testrig ....", I can assume that you are trying to count on some user testrig and there are errors with differential calculation. Go back to the standard testrig if this is the case.
About how the test can be organized in Aview. Nothing prevents to imitate the simplest case of vertical loading, fixing the suspension to the ground and setting the force / movement on the wheel or whatever you have there.

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