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Speed Dreams Community • View topic - Acceleration

Acceleration

Information about the inner-side magic

Moderator: kilo

Acceleration

Postby horo » Thu May 15, 2014 4:42 am

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Re: Acceleration

Postby mungewell » Fri May 16, 2014 3:24 pm

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Re: Acceleration

Postby horo » Thu May 22, 2014 5:05 am

Thank you for you answer mungewell, so it seems like I need : car->DynGC.acc.y ? I still don't really understand what the ax ay az values stand for, but it seems like they are not useful for me.

I have a second problem, I did realize that I lost a lot of my knowledge in physic and that I'm getting it back gradually. In fact, I need to know which force is felt by the driver. So I won't only need the lateral acceleration according to the car axis, I would also need the spin acceleration (and maybe velocity) of the car around the Z axis (vertical one).

Could you tell me where is these values (cause by grepping, I was only able to find the wheels' spin velocity) ?
If you have some knowledge in physic, could you confirm that my reasoning makes sense (I do not need any other value to compute the lateral acceleration felt by the driver) ?

Best,
horo
 
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Re: Acceleration

Postby horo » Sat May 24, 2014 2:55 pm

I think I found what I was looking for.

The ax ay and az stand for "angular according to x/y/z". So I just need DynGC.vel/acc.ax/ay/az.

However, there is still something strange. To simplify calculation, the angular velocities and acceleration are not calculated according the referentiel. I mean that DynGC and DynGCg angular acceleration and velocity are always equal, even though these two referentiel only share the Z axis. This is pretty strange for a "simulator".
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