9 VIBRATIONS
Ac cord ing to the de sign, the en gine will pro duce vi bra tions which may have an in flu ence on the
life of the ad ja cent struc ture. The max i mum ac cel er a tion in res o nance can be as high as 100
m/sec
2
. There fore res o nance con di tions must be avoided, or ex cluded from the us able range of
en gine speeds with ap pro pri ate mark ings on the RPM-indicator (ta chom e ter).
Pay spe cial at ten tion to the vi bra tion of the ro tat ing sys tem. This con sists of the pro pel ler, the
spin ner assy, the crank shaft and the starter-ring gear. Ver ify the suit abil ity of a pro pel ler by vi -
bra tion mea sure ments. The data on the max i mum tol er a ble vi bra tion level is not yet avail able.
Con duct a vi bra tion test for the en gine/pro pel ler com bi na tions which are not yet re leased. For
fur ther in for ma tion, con tact the en gine man u fac turer.
9
Prepared by: J. B. Meyer Replaces edition from: 10.03.86 Page: 9-1
Checked by: Edition: 01.03.1999 Reg. Number:
Installation Manual
L 1700, L2000 and L 2400 Series
To Next Page
Loading...
Need help?
General
