Mathematic model of a Stirling engine

[ThibautB]

Hello everyone.

I'm working on the design and the manufacture of a beta type Stirling engine. I've done some parts by 3Dprinting, and I've tried to machine a crankshaft, but it is too heavy.
I need some information in order to understand the thermodynamic functioning of the engine and modelise it (mathematically). If you have some informations, I'm more than interested !
Regards
ThibautB

[Ian S C]

Could you put up a photo, and give a bit more information on your motor, is it big or small, high temperature, or low. Is it pressurised, or atmospheric. Compared to internal combustion engines, a Stirling Engine only requires a fairly light crankshaft. Can't help with the maths until we know a bit more about your design of motor.
Ian S C