Why are you using a 5:1 SF for the appliance?
5:1 is for the wire rope of the crane that is continually being wrapped around the drum and sheaves and then straightened back out again - something almost fatigue-like. This appliance is not experiencing that, is it? Will this be a dynamic lift...
Have you contacted a media blast company? Someone in the know should be able to select a gentle abrasive that would remove the zinc and leave the underlying steel undamaged.
Engineering is not the science behind building. It is the science behind not building.
What particular section does the engineer reference when he makes this claim?
Engineering is not the science behind building. It is the science behind not building.
Generally speaking, the size of AISC beams are notated by a nominal dimension of depth, a shape designation and finally, a weight per foot in pounds.
Without looking in any book anywhere, I would conjecture that these designations mean:
9C25; 9”nom. depth C-channel at 25#/ft
9C20 1/2; 9”nom...
Do you have the original, presumably failed, bearing? If so, have XRF (X-ray fluorescence) done on it. If you prepare the sample, sand it with SiC and remove all traces of anything that could have been deposited by the crankshaft, as that will give you a false reading.
Engineering is not the...
Depending on what you are looking for, this is probably an elasticity problem. Before going into an analysis, you should fully understand the elasticity of a bolted connection. I say that because I assume that you want to know how much you can safely load the bracket and bolt together.
With a...
1) What is the enclosure material?
2) Are you (re)designing the enclosure?
3) Is the fastener screwed into a hole that is tapped into the inside of the enclosure? Can the bottom of the hole be sealed before assembly if that is where the problem comes from?
Engineering is not the science behind...
Ok. Now we have two different views stating why
is incorrect.
If I can boil down the first school of thought, which I believe is held by akkamaan, it would be the following: Because the energy imparted to the fluid originates inside of the pump, both flow and pressure are created by the...
How much flow do you have? Can you accelerate the water with a nozzle and use a pelton turbine?
https://youtu.be/uN_yPUC8vHM
Do you have enough flow to be able to boost pressure with a ram pump, store the higher pressure in a tank and then extract energy from that with a higher-pressure...
Neither does the pump. That is the whole point here. All of the parts of the system convert energy.
I will not be condescending and act like you don’t know that energy is neither created nor destroyed. I will, however, point out that you conveniently and, I can only assume, purposely ignore it...
Respectfully, I disagree.
Identical engines are used in a wide variety of vehicles. Knowing that vehicle weight, tire size, rated approach angle, etc. are what dictate drive shaft size is an important thing to know.
Knowing that the load on the end of the cable is what controls the cable...
Who knows? Even if desirable, such a thing is impossible with the prime mover (your hand.) It illustrates that even if your arm is capable of applying a force of 10 pounds, it cannot do so without something to resist that 10 pounds, similar to how a pump that can push fluid against all sorts...
Let's see how that works. Try this real-world experiment. Put your hand straight out, facing up and place a postage stamp on your palm. Now apply 10 pounds of force straight upwards to the postage stamp. Can you do it? Why not? You can raise your hand as fast and as hard as you like, but...
