Stirling Engine Animation - Jamb Systems

[justlivemyway]

Couple of years ago, I had mailed you regarding some simulation queries regarding Ug Nx-4. I think I had seen this video on your website. I remember I had asked you how did you do it in UG and you replied its pretty complicated to explain..:)

[mgburke888]

@justlivemyway Did you ever work it out? Perhaps by viewing the Daisy video that I posted?

[justlivemyway]

@mgburke888

I haven`t explained it in detail in my last post.:P I was wiling to know how you had done the simultaneous rendered image motion simulation at that time. Since I was using NX-4 at that time and it did not have the capability to perform a rendered image motion simulation. You must have been using a higher version of NX at that time. I now work on Nx 7 and love it :)

Mike you are amazing at designing in NX. Hats off to you.

[mgburke888]

@justlivemyway Well I guess the daisy example just shows how the animation tool works in NX. What lies beneath that is that the actual motion is created using simple mating conditions (or laterly assembly constraints).

It is also worth noting that to get better than what I consider fairly average quality video the best way is to output images to single image files in the resolution of your choice. You then have to use good 3rd party tools to basically stop frame animate them.

[justlivemyway]

@mgburke888

Wow! That is definitely a long process to do in case one has to save rendered image files manually.

Since the quality of the Stirling engine animation you have done is very good, does that mean you have manually saved each rendered image file separately and then using a 3rd party converter converted them into an animated movie ?

[mgburke888]

@justlivemyway No you don't have to manually save frames the animation tool has an option to output them to tiff files. This has been standard since NX-3 or earlier, sadly it should probably have been improved and updated since, but the only other options are Mpeg1, Mpeg2 or GIF. What one wouldn't do for AVI or even a humble Mpeg4....

[Dieselvoimaa]

i want plans too

[carlsl27]

I would like to get a set of plans.

[chuchocachucho]

could you make a tutorial of how you made this simulation in nx?

[OVAT131174]

i want to buy one of this , how can i do?

[mgburke888]

@OVAT131174 Sorry but we ran the numbers on making these for sale to the public and this design came out being too costly for where we thought the market price ought to be set.

We are however looking at releasing plans for hobbyists to be able to make their own in limited numbers in the future.

[toxicwar]

who ever came up with that werid spinning thingy that gose up and down while spinning must be one crazy inventor x-x its beautiful XD

[itsbigdan]

is this on solidedge???

[mgburke888]

@itsbigdan No UG/NX

[OzoneFuel9]

Oh my god, that is sweet! Maybe that type of transfer to the flywheel is more common than I'm familiar with but that is brillant.

Does your modeling software calculate whether the additional piston adds a diminishing return (i.e. do the two engines combined produce equal or less than the combined power of two separate engines of the same size)?

[mgburke888]

@OzoneFuel9

What basically happens is that both engines have the same return for the same amount of heat, so that provided there's more heat you would get more power in theory. In practice if you look at the other videos the engines we've made proved a little difficult to start because the timing of the cycles depends on the flywheel. When pressurised and well lubricated they do however seem to run pretty much as powerfully as any similar hot air engine.

[piespokladowy]

*****

[iceman86694]

Nice Work!

[iceman86694]

Looks like a clima car compressor ;) i open one and look inside and i find 5 little pistons that keep folow a disk with some cams on a side of it... thoes cams push the little pistons and so they pomping the cas thru the circuit... or something like that...

[mgburke888]

Close but not quite. The four pistons are essentially two Stirling Cycle engines side by side.

[OrganicDrew]

makes me want to own a CNC machine so i can fabricate my own parts to build something like this

[yellowmetalcyborg]

Looks like and overly complicated linkage system.

[mgburke888]

@yellowmetalcyborg

It probably is bit it is compact, it was interesting to build and is enthralling to watch perhaps in ways that more familiar reciprocations are not.

[shorty40merza]

@mgburke888 i have an experiment where this design would be perfect for it. have you checked the efficiency of this vs the normal design? if its good is there a way i can buy one of these ones? thanx

[bustamallard]

Very nice. I must let my machining students give this a try. Thanks for the creative design.

[MerlijnBt]

Nx7?

[mgburke888]

This project was started in NX-3, eventually rendered in NX-5 and has also been used as my test project of choice in NX-7. The rendering and animation tools used for this kind of video production have changed little over the journey!

[MerlijnBt]

Thanks for the information

It is looking wonderfull and well thought

[ankara231]

very interesting engine..........

[AlexPleaseHelpDotCom]

That's a pretty slick model. Probably one of the best Stirling engines i've seen on YT.

I love the wobble yoke design.