hello all,
i am looking for good books on the subject.
if you have a book to recommend, please also tell me what the book is focusing on (theory, economic comparison, installation, etc...)
THANKS!
guyguy
hello all,
i have a maginsium bracket to which i want to connect a nipple made of steel or aluminium. which 1 is more suitable? where can i find some info about that?
btw, i am also worried about the thread in the bracket. i don't want to damage it. is that a problem with those metals?
tks
guy
hi,
I am trying to evaluate pressure drop in an oil pipe. My problem is that I know that there is also air involved (~ 0.1%). The question is, how does the air influence the pressure drop? (notice i am talking about 0.1% air)
I heard opinions both ways (pressure drop shall fall/rise) but no...
hi,
i am looking for the ultimate shear stress value, used for weldings, for the following metals:
SAE4130
SAE4140
17-7PH
also if you can provide the general charactersitics of SAE4140 it'd be helpful.
thanks.
guyguy
hello,
I am trying to measure static air pressure in a pipe @ 300 deg C and at max. of 150 psi. The air is flowing in the pipe.
It seems quite difficult to find a sensor that survives these temperatures.
I was told that if i will connect a short tube and take the measure few inches away from...
hi,
i need to know how to calculate the preload tesion in a bolt connecting 2 plates. My problem is that one of the plates is subjucted to loads that would cause shear in the bolt. How do I translate it to preload? Is it simply by using the equation F=(miu)N? (miu = friction factor) (is it...
sorry i am a bit rusty here. i need to know the J - polar inertia moment of a half circular body with thickness 't' around an axis that crosses at the half circle center (the circle's center.
ta
guy
hello all,
i am looking for manufacturers of thermometer strips.
maximum temperature to be measured is 110C (without a direct contact between the examined liquid and the strip).
i am quite lost here
any help'd be appriciated ! :-)
hi,
in many light turbopropeller aircrafts the engine truss is attached to a wall by means of a number of main bolts.
what kind of bolts are used for holding such a critical part? are they torqued to a high pre-tension state? where can i find information about this subject?
thanx
hello,
long time since i came by this subject. need your help.
let's suppose i have a structure and i calculated the resonance modes of it and found that 1st mode resonance freq. is 70hz.
now, the question is:
are these frequencies: 35hz, 140hz,
can cause the structure to get into resonance...
information regarding welding theory is needed.
how to calculate forces/tourqes when using welding to attach to piece of metal such as Aluminium to Aluminium.
how does one decide how much to weld (2mm , 3mm ....), should we weld on all sides of the profile or maybe it is enough to weld just...
i need information of how to calculate forces/tourqes when using welding to attach Aluminium to Aluminium.
how does one decide how much to weld (2mm , 3mm ....), should we weld on all sides of the profile or maybe it is enough to weld just some of them etc...
the information is needed asap and...
