Wednesday, April 8, 2020

What is 1st order moment?

These moments acts in both vertical and horizontal directions. For engines with 5 cylinders 
or more, the 1st order moments are of rare significance to the ship but it could be of a idisturbing magnitude in the 4 cylinder engines. Resonance with a 1st order moment may 
occur for hull vibrations with two and/or three nodes. 1st order compensator can be 
introduced in the chain tightener wheel. It comprises of two counter rotating masses 
rotating at the same speed as the crankshaft.

No comments:

Post a Comment

If you have any doubts.Please let me know