- Cylinder (in the Shock absorber subsystem)
- Piston (in the Shock absorber subsystem)
- rim (in the Wheel subsystem)
Why is my shock absorber doesn't show the internal mechanics that I defined ?
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There is a problem in my model which makes me confused, when I followe the tutorial video of Formula student physical modeling training, I defined my shock absober internal mechanics such as spring stiffness and damping coefficient. The tyre shold move a little bit under the force of gravity. However, when I run the model, the motion of the shock absorber looks like the figure below. It seems like the shock absorber internal mechanics I defined is not working. Can anyone tell me what mistake I've made? Is it the problem of my world frame ? PS: my matlab version is 2014b
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Swarooph
2016 年 7 月 25 日
Hello Shuo,
This is because, you have not defined the densities for the solids appropriately. Set the density of all the following solids to '8000 kg/(m^3)' so that it resembles steel.
You can find this parameter in the 'Inertia' dialogue:
Your tyre solid can remain at 1200 kg/(m^3) to resemble rubber if you want (the example model probably has an 8000 kg/(m^3) for that as well and could be considered a bug). In this case, my result looks as follows:
But if you want to replicate the exact same result as in the example, set the density of the tyre also to 8000 kg/(m^3).
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