Hi all,
Just after some advice on whether or not some heat transfer values are realistic.
I have a piston, whose upper and lower crown temperatures are shown below:
Underneath the piston, there is a chamber (not shown), filled with engine oil, which has zero flow rate.
I have calculated...
Hi everyone,
Just after a bit of advice. The attached images show a circular plate(blue) mounted above a piston (green). There is a force acting over the entire top face.
Obviously the plate shown in blue is going to experience some nasty bending stresses. I'm not 100% sure how to tackle the...
Hi everyone,
As a previous user of NX7.5, I am used to being able to create datum planes and them whichever size I want. I find this easier to see what is going on.
In Catia V5 r19, when I make a reference plane, it does not appear to be possible to alter the size of the plane. I find it is...
Hi everyone,
I need to know the oil pressure rise over the crank, and also through the connecting rod (drilled rod).
Firstly for the crank:
Let's say main bearing oil pressure is 2 bar(g). Engine speed is 1000 RPM (104.7 rad/sec) and the crank drill length is 55mm. Oil specific gravity is...
Hi everyone,
Attached is an image of an initial piston design (bosses are huge so I can initially see where material can be removed). Also please ignore the irregular shape of the piston, it's not for a normal application!
The FEA is simulating the loading in the upwards direction (piston is...
Hi everyone.
New user to Catia (and general CAD novice!) (using V5 R19)
I produced this camshaft (below) in NX 7.5 and I want to be able to produce it in Catia. To produce in NX I created one lobe, and then mirrored it. I then used the "move" function to rotate it to the required position...
Hi guys,
Just wondering what typical peak cylinder pressures are for these new breeds of downsized turbocharged gasoline engines we're beginning to see ?
Cheers,
Harley
Hi everyone,
I'm integrating a PV diagram. I have successfully done the integration, but now just want to show that the final value is the sum of all the values collected for each crank angle, from let's say for instance 1 degree to 180 degrees.
I could just not bother using the symbol and...
Hi all,
I've undertaken a Rockwell C hardness test on a camshaft lobe & follower and both have returned a reading of 33 RC.
I've found a table which converts this to a UTS of 1048 MPa.
Now, I can only assume this relates to some sort of steel??
Thanks for any help
