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In such a power transmission problem your objective could be the minimisation of the total mass of the transmission, the cost, space taken. (etc) and among your decision variables would be shaft layout, gears, pulleys, bearings and all such mechanical power transmission elements. Your...

I was on the wiki page for PLA polymers and the physical properties given were all ranges of values rather than specific values: Example: Young’s modulus: 2.7 to 16 GPa So are PLA polymers just a type of polymer of which there are various subtypes? Why are their properties ranges of values

@Gr8blu thanks a lot for the detailed response firstly I should have clarified d this is a miniature wind turbine project. you should quite easily be able to carry the full model in your hands lol. (1) No it is not intended to be direct drive. I had just forgotten to include Gearboxes...

one piece of advice I can give is don’t spend too much effort on developing your skill in the symbolic evaluation of integrals, or even differentials. Its not a useful skill for engineers. Everyone will use a computational solver anyway.

so the problem I'm dealing with is I have one generator, which does not accept any shafts (the generator itself for some reason i dont understand has a shaft, sigh.) and I will put this somewhere in the wind turbine nacelle or tower. The wind turbine layers both will rotate in the same...

I am trying to study the double rotor HAWT : and an issue that has appeared is the mathematical modelling of the motion of the wind[speed and direction] that has passed the first set of blades before it strikes the second set of blades. The reason I need to do that is so I can design the...

not that it matters much but do what do you guys think?

Using this approach to solve for the dimensions of a machine's design concept is about the only use I can think of and even then it seems to not be used widely by engineers at all. What other purposes is Engineering Design Optimization used for?

@Drawoh Thx for replying. "If I am laying the thing out in CAD, I attach dimensions." But thats the question. How do you determine those dimensions before u attached them and scaling the design with a ruler seems difficult. But i get similiar answers from other engineers. I guess there is no...

You have a design problem statement, which gives you numerical specifications for performance, spatial constraints etc, and you have finally come up with some mechanism ideas you synthesised into a machine concept. You’ve sketched your design’s parts and the final assembly. So: How do you now...

I am trying to come up with a design for a handheld pump used to suck/siphon/extract diesel from a car's tank. There's definitely going to be a pipe dipping into the fuel tank, and there's definitely going to be a human manually operating the pump. I'm trying to think of a mechanism that would...

What are all of the parameters of a Spur gear that define its geometry? So far I have: - Number of Teeth - Shaft hole diameter - Pressure Angle of the Tooth - Gear Thickness - Tooth thickness - Tooth surface with - Gear diameter - tooth length But I think some of these overlap, like gear...