Okay being a musician I can tell you that altering the harmonics change the quality or timbre of the sound. You know when you hear the sound of an engine, if you like it or not. We say we like the sound of a Lamborghini Gallardo etc. That's what a NVH engineer's job is. To make the sound of the...
NVH Wikipedia page. It says there "In some cases the NVH engineer is asked to change the sound quality, by adding or subtracting particular harmonics, rather than making the vehicle quieter."
Thanks
Firstly I'm in India and all the good manufacturers are in the US. Second, the parts I need are cheap here and labour is cheaper still. We have good workmen here and it is easy to copy designs. If you look at the pic I posted, it's ridiculously simple to replicate it. But, I am confused by the...
Sorry I didn't mention it but when I wrote 800 lbs I already factored in some safety. There's no way I'll ever lift more than 500 lbs.
@mech-engineer - I am trying to build off an existing design. The link I posted (Pic).
Thanks. The off the shelf ones use both 2x2 and 3x3. The question is how much do I need. The thickness of the tubing is around 3 mm (11 gauge steel). There are also racks with 7 gauge steel (4.5mm). 7 gauge is overkill. Since there is very little dynamic loading involved I don't want to keep...
The smaller the pinion the faster it'll spin (more rpm). What will you use the rpm for? Is the 250 kg load reciprocating or is it just a one-time downward motion?
I guess your driven gear would have a rpm of 800 rpm since the no. of teeth are half. So now your rpm is doubled and to keep the transferred power constant the torque would become half of 300 i.e. 150 ftlbs.
I am designing a Power Rack like this. Would I benefit anyhow using 3"x3" tubing instead of 2"x2" tubing? The most weight that thing is going to be subjected to is around 800 lbs (400 kg approx). Also will bolting the pieces be dangerous or should I just weld them? Finally I also want to omit...
Hi there,
I don't know what equations you are actually using but as far as I see the air inside the can is at atmospheric pressure. At the bottom of the tank, the pressure on the air column is equal to water pressure at that depth. Now the air experiences a pressure of (water pressure -...