lucp.py

Created by klfraimbow

Created on November 13, 2021

768 Bytes


m volumique:p(kg/m**3)= m(kg)/V(m**3)
densite:    d = pfluide / peau
poids:    P(N)=m(kg)*g(m/s**-2)
pression: P(Pa)= F(N)/S(m**2)
1bar = 10**5 Pa

Vi = Hi * l * L
Vi = ps * Vs / pl

Fa=P sinon il coulerait 


P= psolide * g * Vsolide
Fa = pliquide * g * Vi

-> ps - Vs = pliq * Vi

Si le centre gravite est au dessus du centre de pousse = instable 
Si le centre gravite est au dessous du centre de pousse = stable 


Yg = S1*YC1 + S2*YC2+ S3*YC3    / S1+S2+S3

Exo type: 
1)Fa=pl*g*Vi

2)ps*g*Vs=pliq*g*Vi
F= Vi/Vs=ps/pliq=0,... -> %
si forme dif = blc Vi = le meme 

3)le s flotte et il est soumis a 2 forces Fa et P 
P+Fa=0
P-Fa=0   -> P=Fa
P= ps*g*Vs
Fa= pareil 

=> ps*Vs=pliq*h
h=a* ps/pliq = ... m 

4) P/pliq*g = Vi
mc*g + mp*g + mr*g = pliq*g*Vi

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