pitch center measurment

[pietro82]

Hi all,

I have a simple vehicle multibody model and I need to identificate some parameters from measurments on a real vehicle. I need to know the pitch center. How could I measure the pich center position? I'm thinking to use a 6dof inertial platform but I don't know how to accomplish it.

Thanks!

 

[GregLocock]

First define what you mean by pitch centre. If you mean, for example, the approximate point about which the vehicle pivots when going over small bumps at a given speed, then just use your platform to identify the point with zero z translation during the event.



Cheers

Greg Locock


New here? Try reading these, they might help FAQ731-376

http://eng-tips.com/market.cfm?

 

[pietro82]

Hi Greg,

thanks for your prompt reply. The pitch center I mean is the one you described. Unfortunately I don't have any platform, I can just drive the vehicle on the road. Is anything I could for estimating it on road driving?

Cheers

Pietro

 

[GregLocock]

yup, two vertical accelerometers

Cheers

Greg Locock


New here? Try reading these, they might help FAQ731-376

http://eng-tips.com/market.cfm?

 

[pietro82]

I got it. thanks!