Ok, so if I have something else than a bulb at the end...for example a solenoid that requires a low voltage to activate...would EMI/RFI influence be able to activate it if the wires are not twisted?
Wow! This whole electrical area is way out of my radar.
So in Mechanical Engineering layman terms....
If I twist unshielded wires I will stop the creation of unwanted current from an external source be it EMI, RFI, etc.. to pass through the wires?
In theory, If I have a battery/switch on one...
Hi,
I am a mechanical engineer...thus the question.
I know that when you twist wires together you are protecting from EMI and RFI. My question is...if you do not twist can these two interferences or any other for that matter actually create/induct a current in the wires?
Thank!
Mike
How do you calculate for the Ultimate Shear Strength of a Material?
I have a SS416 heat treated at 800 (From Machinery Handbook) and now has:
Yeild Strength: 150000psi
Ultimate Tensile Strength: 195000psi
Hardness: C41, 390Bhn
One book says:
Ult. Shear Strength = 0.57 x Material Yield...
I am trying to calculate the necessary length of thread engagement for an ACME thread on a pipe (and pipe cap)based on the internal pressure.
I have calculated for the Stress Area At for a 1.5-4 ACME-2G from the Machinery Handbook 26th, pg 1794. and then inputed it in the Length of engagement...
I am using a 1.5-4 ACME-2G on a pipe with a .803 I.D.
My material yield is 150000psi.,
Ultimate Tensile is 195000psi,
Radial stress is 57400psi
and hoop is 165600psi.
Cockroach,when you say check the normal stress under the root of the external thread...do you mean by calculating the area of...
I am trying to calculate the necessary length of thread engagement for an ACME thread on a pipe (and pipe cap)based on the internal pressure.
I have calculated for the Stress Area At for ACME from the Machinery Handbook 26th, pg 1794. and then inputed it in the Length of engagement formula Le...
