Mr. Greg, I will use a normal road for my model, which is defined on a circular solid shape (just for visualization).
I am facing a problem in the model I attached (made with ADAMS 2014) it is just a very simple vehicle with 4 wheels. I applied motion (as velocity) of 40d/s on the backward right...
The model worked, I found the linear acceleration at which the tipping happens in the longitudinal direction.
Now, I need to measure the critical turning velocity, this means that I need a road with a turn in ADAMS.
I tried polyline in ADAMS but it says that the road will not appear...
I see, thank you.
I started with the Adams/tire module,
I got these ERORRS when I tried to simulate the model after ading tires:
ERROR: Standard exception "There is no solver license!" caught in file L:/source/adamscxx/src/Asol/slv_intr.cxx, line 1618
ERROR: No model has been defined...
Thank you,
I already find a way, I edited Fiala tire and the 2d_flat road to fit my model.
I will edit uat.tir now according to your advice.
How can I decide to use uat.tir or fiala or any model?
and according to my forementioned robotic vehicle case, what is the tire that fits this situation...
Thank you for the fast reply,
I used only uat.tir and 2d_flat.rtf, this was during learning about the tie/road tool in Adams. I don't have previous experience with vehicle dynamics but with robots.
You can recommend me a customizable tire based on my described situation: (I need it customizable...
Thank you dear Greg,
I turned to use A/Tire according to your advice.
Now I need 4 wheels for the robotic vehicle I am modeling, the 2 front wheels are different in diameter from the 2 back wheels.
How can I build custom tires using A/Tire?
I used only the available tires and roads in...
Thank you,
Isn't restitution better for simulating a tire that bounces several time? or it can be simulated using both impact or restitution by changing the parameters?
The alternative to simulating the contact using the parameters you provided me, is to use adams/tire. would it make a lot of...
It would be great if you can suggest me the values of Stiffness, damping, static friction, and dynamic friction for simulating the contact between a walking human and say, asphalt in ADAMS also. Can you guide me in this regard?
Regards,
Mohamed Salaheldin
Mechatronics and Robotics research...
Thank you Mr. Greg
When I set the damping to 0, the vehicle just fall of the road, I mean as if there's no contact but, when I increased it the model worked as expected.
What does it mean physically that the damping of the contact is zero?
Hello dear colleagues,
I am trying to simulate a platform with 4 wheels in MSC Adams.
My question is about the contact parameters I need to defines to simulate rubber/asphalt contact between tires and a ground plate.
The parameters required are:
Stiffness, damping, static friction, and dynamic...
Hello dear colleagues [smile]
I want to simulate the dynamics of a humanoid robot for which the CAD models is built using SolidWorks, I could export the files to ADAMS but the problems faces me when i want to assign motion to the robot joints to make it walk.
My objective is to give the robot...
Hello dear colleagues [smile]
I need some sources to learn Control Engineering from, I don't understand control engineering well till now but, It is time to do.
Please recommend me some video lectures or textbooks that you used, and any further guidance is welcome.
Thank you
Thank you [smile]
I actually started learning MathCAD Prime by my self from its help section.. It's really great for new users.
Am i on the right track or it would be better if i go on using MathCAD (not Prime) ?
Hello dear colleagues [smile]
I am new to Mathcad, I wonder what is the difference between Mathcad prime and Mathcad, I knew about the Express version which is free.
Any further guidance or recommended resources to help me master the program will be welcome.
Thank you.
