UNLIMITED FREE ACCESS TO THE WORLD'S BEST IDEAS

close

DIN ISO 10816-4

Mechanical vibration - Evaluation of machine vibration by measurements on non-rotating parts - Part 4: Gas turbine sets with fluid-film bearings (ISO 10816-4:2009 + Amd.1:2017)

inactive
Buy Now
Organization: DIN
Publication Date: 1 January 2018
Status: inactive
Page Count: 22
ICS Code (Vibrations, shock and vibration measurements): 17.160
scope:

This part of ISO 10816 establishes provisions for evaluating the severity of in-situ, broad-band vibration measured radial (i.e. transverse) to the shaft axis on all main bearing housings or pedestals and in the axial direction on thrust bearings. These are in terms of:

vibration under normal steady-state operating conditions;

vibration during other (non-steady-state) conditions when transient changes are taking place, including run up or run down, initial loading and load changes;

changes in vibration which can occur during normal steady-state operation.

This part of ISO 10816 is applicable to heavy-duty gas turbine sets used in electrical and mechanical drive applications, with fluid-film bearings, outputs greater than 3 MW and an operating speed range under load between 3 000 r/min and 30 000 r/min. This includes gas turbines coupled to other rotating machinery either directly or through a gearbox. In some cases, this part of ISO 10816 is not applicable to the evaluation of the vibration of the coupled equipment (see the list of exclusions in this clause).

EXAMPLE For single-shaft combined-cycle power units in which a gas turbine is coupled to a steam turbine and/or generator, the evaluation of the gas turbine vibration is according to this part of ISO 10816, but that of the steam turbine and generator is according to deleted text ISO 10816-3.

This part of ISO 10816 is not applicable to the following:

a) aero-derivative gas turbines (including gas turbines with dynamic properties similar to those of aeroderivatives);

NOTE ISO 3977-3 defines aero-derivatives as aircraft propulsion gas generators adapted to drive mechanical, electrical or marine propulsion equipment. Large differences exist between heavy-duty and aero-derivative gas turbines, for example in casing flexibility, bearing design, rotor-to-stator mass ratio and mounting structure. Different criteria therefore apply for these two turbine types.

b) gas turbines with outputs greater than 40 MW and with rated speeds of 1 500 r/min, 1 800 r/min, 3 000 r/min or 3 600 r/min (see ISO 20816-2);

c) gas turbines with outputs less than or equal to 3 MW (see ISO 10816-3);

d) gas turbine driven rotodynamic pumps (see ISO 10816-7);

e) coupled steam turbines and/or generators with outputs less than or equal to 40 MW (see ISO 10816-3);

f) coupled steam turbines and/or generators with outputs greater than 40 MW and speeds of 1 500 r/min, 1 800 r/min, 3 000 r/min or 3 600 r/min (see ISO 20816-2);

g) coupled steam turbines and/or generators with outputs greater than 40 MW and speeds other than 1 500 r/min, 1 800 r/min, 3 000 r/min or 3 600 r/min (although generators seldom fall into this category) (see ISO 10816-3);

h) synchronizing clutches which couple the gas turbine to a steam turbine or generator (see ISO 20816-2);

i) coupled rotary compressors (see ISO 10816-3);

j) gearbox vibration (see this clause);

k) rolling element bearing vibration of any driven equipment.

This part of ISO 10816 is applicable to other driven equipment not included in this list of exclusions.

This part of ISO 10816 is applicable to machines which can be coupled to a gearbox, but does not address the evaluation of the vibration condition of those gears. Specialist techniques are required for evaluating the vibration condition of gears which are outside the scope of this part of ISO 10816.

The numerical values specified are not intended to serve as the only basis for judging the severity of vibration. For gas turbine sets, it is also common to judge the vibration based on measurements taken on the rotating shafts. For such vibration measurement requirements, see ISO 7919-4 and ISO 20816-1.

Document History

DIN ISO 10816-4
January 1, 2018
Mechanical vibration - Evaluation of machine vibration by measurements on non-rotating parts - Part 4: Gas turbine sets with fluid-film bearings (ISO 10816-4:2009 + Amd.1:2017)
This part of ISO 10816 establishes provisions for evaluating the severity of in-situ, broad-band vibration measured radial (i.e. transverse) to the shaft axis on all main bearing housings or...
October 1, 2016
Mechanical vibration - Evaluation of machine vibration by measurements on non-rotating parts - Part 4: Gas turbine sets with fluid-film bearings - Amendment 1 (ISO 10816-4:2009/DAM 1:2016); Text in German and English
A description is not available for this item.
June 1, 2010
Mechanical vibration - Evaluation of machine vibration by measurements on non-rotating parts - Part 4: Gas turbine sets with fluid-film bearings (ISO 10816-4:2009)
A description is not available for this item.
December 1, 1998
Evaluation of machine vibration by measurements on non-rotating parts - Part 4: Gas turbine driven sets excluding aircraft derivatives (ISO 10816-4:1998)
A description is not available for this item.

References

Advertisement