Stresses at Sys. BP
Clinical group
Marfan
BAV<55yrs
BAV>=55yrs
DA
Age Group
<55yrs
>=55yrs
Healthy avg.
N
Circ. (kPa)
Axial(kPa)
Distensibility
25745
23771
27785
26996
10030
8617
14359
13742
1.
2.
a)
Let spring K1 be system A and spring K2 with damper be system B.
From spring properties, we know that
F=FA=FB
and
L=L1+L2
Substituting eq(1) and eq(2)
Rearranging like items,
Multiplying both si
1.
Known:
Where D is the distensibility,
L is the length of the chamber.
a)
Substituting D:
Substituting Vd:
Assuming d=dsys-ddias=ddias,
If not, the approximation would be false.
b)
a)Known:
P=120-80
4.
a)
Since the whole body is in static equilibrium, we know that =0, and using point
O as the center (because the two other unknown F n and Fs both pass this point):
Fe*a-2Wb/3*b-P*c=0
We know that 2
3.
a)
Since the whole leg is in static equilibrium, we know that =0, and using point O
as the center:
Fp*dpo+Fj*doo+Wl*dol+Rg*dgj=0
We know that Wl=120*.07=8.4(kg)
Rg=120/2=60(kg)
Fp*(7.6cm)+Fj*(0cm)+
5.
a)
b) Since the tympanic membrane is connected to the oval window with a rigid rod, they act
together as a body; therefore, when the tympanic membrane is displaced 1m, the oval window
is displaced