ADAMS/Car : Damper+Spring vs. Airspring

Question

ADAMS/Car : Damper+Spring vs. Airspring

Daniel Ursache (Mechanical)

(OP)

23 Apr 17 11:43

Hi all,

Each one of us used for the suspension system that classic group : damper + spring.

But has anyone ever tried to replace this classic group with the airspring system ?

For e.g. in ADAMS 2014, if you load the Adams/Car Truck (from Tools and then Plugin Manager), then you will be able to use airspring and / or truck_airspring.

But here the things become more complex, at least for truck_airspring... because this implies a ride height sensor. Also I attached a short PDF presentation.

P.S. Mr. Locock, I tried to contact you by LinkedIn. Please be kindly and accept my connection request.

Best Regards,
Daniel U.

http://files.engineering.com/getfile.aspx?folder=dfc7ecce-f868-46ec-b1b6-c1

GregLocock (Automotive) · Answer 1 · 2017-04-23 23:24:57

You haven't said what your problem is. Sorry, I don't have many Linked in contacts and I like it that way.

Cheers

Greg Locock

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

Daniel Ursache (Mechanical) · Answer 2 · 2017-04-25 11:21:10

Hello Greg,

Let's take it step by step. Many trucks and buses use the axles with airspring system and a Ride Height Sensor (R.H.S. establishes the vertical travel/displacement of vehicle body).
This R.H.S. as single part (neither left, nor right side) is linked by a Panhard System.

I want to implement this airspring system and his R.H.Sensor on an independent suspension for passenger cars. (please search on Google the AirMatic System used by Mercedes-Benz). But it's known that the passenger cars don't use a Panhard System.

And my big problem is how and where can I link the R.H.S. for an independent suspension with double wishbone ??

GregLocock (Automotive) · Answer 3 · 2017-04-25 23:37:33

Link the RHS to each lower arm. You'll need one for each wheel if they are all independent suspensions. A very simple approach would be to mount them to the top and bottom of each spring.

Cheers

Greg Locock

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

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ADAMS/Car : Damper+Spring vs. Airspring