motor order
motor order
(OP)
Hello
Somebody could help to understand the motor order?
Thank you so much.
bye
JOE
Quelqu`un pourrait m`aider a comprendre l`ordre du moteur.
Merci
Somebody could help to understand the motor order?
Thank you so much.
bye
JOE
Quelqu`un pourrait m`aider a comprendre l`ordre du moteur.
Merci
Joe
Escola Politécnica
Universidade de São Paulo





RE: motor order
For example, something that happens with a frequency w=(engine order 2) has a frequency of 2*engine speed, and thus happens twice for every rotation of the crankshaft.
RE: motor order
The rule of thumb on a 4 stroke is that if there is a half in the vibration (eg 3.5E) then it is usually to do with cylinder to cylinder variation in the firing process, or inertial stuff from the valvetrain. Typical causes are flexibility in long shafts causing timing errors or resonances. For instance, the camshaft in an I6 causes 1.5 order in the combustion process, because each cam is effectively delayed as you go down the camshaft away from the gear. The solution in that case is obvious, of course.
Cheers
Greg Locock
RE: motor order
Best regards from Brazil
bye