Yea definitely, here is a copy of my Matlab code that I'm using to update the pressure and volume as I move the cylinder from one end to the other
P1(i) = P_eq*(Vb1^(gamma) / ( Vb1-(a-as)*dLp(i))^(gamma) );
P2(i) = (P_eq*(Vb2^(gamma)) ) / ( (Vb2 + a*dLp(i))^(gamma) );
V1(i) =...
Thanks so much for your reply.
I don't think that I have a leaking piston, since the pressure always returns to the same value when the piston returns to its original position.
In the equation that I am using for force, I do include the vacuum being drawn on one side of the piston. I should...
I have included the difference in area on both sides of the cylinder. Perhaps it is not an adiabatic process, and should be modeled as Boyle's Law?
PBVB = PAVA
I assume there will be some losses due to friction, but I am concerned since the max pressure I am recording is about 1/2 of what I calculated using the equation above, so the torque output of my device is not as high as what I designed it for.
Hello,
I'm having issues with pressure calculations that I'm using for a double acting pneumatic cylinder. In my application, I start the piston near one end of the cylinder with both sides closed, and then move the piston towards the other end. At each point, I update the pressure, volume, and...
Yes, that would be helpful. Finding the max stiffness of a cantilever beam at its tip with the same amount of material, and both being the same length would be of use to me.
Thank you
Somewhat, but that is designing for constant stress. I am hoping to find the optimum shape for stiffness. What I have been trying to do is using the equations for angular deflection, vertical displacement in order to find a shape that maximizes stiffness (F/displacement). These are the equations...
Hi, thanks for you reply. This is for applications in the prosthetics field, so geometry and construction is dependent upon what can be contained within a biological form factor.
Basic dimensions:
Cross Section: 6 x 25 mm
Length: 100 mm
Material:
Carbon Fiber with E = 3.8E10 Pa
Maximum...
Is it possible to create a cantilever beam with constant or increasing stiffness. I've been experimenting with several different shapes and profiles, and have not had any luck.
I know that there are shapes with constant stress throughout, but I'm hoping to find a shape with constant or...