Re: [Sserver-three-d] A doubt in dynamics

[SIREESH <sir...@st...>]

Hi,

    I am facing a problem regarding the physics aspect in simulation .... 

    Since Drive is used to add force in each cycle there should be a 
constant acceleration if i add the same force. But when i use  drive(100) 
the acceleration i get is different in each cycle.

Even though i assume there is friction once the body starts moving the 
friction force is constant (ie  f= muk * Normal force)... So if i apply 
the same force using the drive vector(say drive(100)) i should get the same 
acceleration because ( a = (Force applied - frictional force)/mass)

Since force factor = 35*12/100 the acceleration should be close to 5.6 as 
the mass is 75 kg but the acceleration i get varies from 0 to 1.8 m/s2

Since the server uses ode i tried to check the ode documentation but 
could not understand  how the friction is simulated 

Also the maximum agent velocity i get is around 1.6m/s but the 
maximum agent velocity is  set to be 10m/s in the rcssserver.rb file ..


I would be grateful if  some one can  explain me  as to how the dynamics 
of the system works and correct me  


Thanking in advance 


regards,
sireesh