On the other hand, I have knowledge in mechanics, and the numbers that you bring frighten me, especially the frequencies of rotation.
Hello and thank you for your answer.
Sirius engines are related to gas turbines and therefore
rotate at higher rotational speeds than those of positive displacement engines (internal combustion engines, steam locomotives ect, ect).
Thus, a simple car turbo (also related to gas turbines) often exceeds 100000 rpm.
These rotational speeds are possible due to the absence of reciprocating motion (piston, connecting rod, cylinder, valves)
Of course, this type of engine (turbine) does not escape the laws of mechanics, critical speeds of the shafts, periodic excitations of the turbine blades when passing through the stator wakes, natural frequencies and structural damping
excited elements ect, ect.
Regards Gas and heat
absent until 20/03/06