Standard Swedish standard · SS-ISO 20816-2:2018

Mechanical vibration - Measurement and evaluation of machine vibration - Part 2: Land-based gas turbines, steam turbines and generators in excess of 40 MW, with fluid-film bearings and rated speeds of 1 500 r/min, 1 800 r/min, 3 000 r/min and 3 600 r/min (ISO 20816-2:2017, IDT)

Status: Valid

Scope
This document is applicable to land-based gas turbines, steam turbines and generators (whether coupled with gas and/or steam turbines) with power outputs greater than 40 MW, fluid-film bearings and rated speeds of 1 500 r/min, 1 800 r/min, 3 000 r/min or 3 600 r/min. The criteria provided in this document can be applied to the vibration of the gas turbine, steam turbine and generator (including synchronizing clutches). This document establishes provisions for evaluating the severity of the following in-situ, broad-band vibration: a) structural vibration at all main bearing housings or pedestals measured radial (i.e. transverse) to the shaft axis; b) structural vibration at thrust bearing housings measured in the axial direction; c) vibration of rotating shafts radial (i.e. transverse) to the shaft axis at, or close to, the main bearings. These are in terms of the following: — 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.

Subjects

Vibrations, shock and vibration measurements (17.160) Gas and steam turbines, steam engines (27.040) Generating sets (29.160.40)


Product information

Language: English

Written by: Maskiners påverkan av vibrationer, SIS/TK 111/AG 02

International title: Mechanical vibration - Measurement and evaluation of machine vibration - Part 2: Land-based gas turbines, steam turbines and generators in excess of 40 MW, with fluid-film bearings and rated speeds of 1 500 r/min, 1 800 r/min, 3 000 r/min and 3 600 r/min (ISO 20816-2:2017, IDT)

Article no: STD-80005466

Edition: 1

Approved: 7/9/2018

No of pages: 36