GB/T 35854-2018Mechanical vibration measurement and evaluation for the wind turbines and their components (English PDF)

1 Scope

This standard specifies the conditions and methods for measuring and evaluating the mechanical vibration of wind turbines and their components.

This standard applies to wind turbines with rated power greater than.200 kW and having the following structural and operating characteristics.

--- Support structure consisting of steel tower and concrete foundation;

--- Horizontal axis, multiple blades;

--- The main bearing is independent or integrated in the gear box;

--- The generator is driven by a gearbox or directly driven by a rotor;

--- Synchronous generator or asynchronous generator;

--- A fixed number of pole generators or a variable pole generator for speed adjustment;

--- Output control through pitch or stall;

--- The generator is connected to the grid via a converter or directly accessed;

--- Active yaw system to maintain the same direction as the wind direction of the engine room.

This standard does not apply to the factory test of gearboxes and generators.

This standard does not apply to the evaluation of the torsional vibration state of the main bearings and gearboxes on the drive train.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article

Pieces. For undated references, the latest version (including all amendments) applies to this document.

GB/T 6075.1-2012 Mechanical vibration measurement on non-rotating parts Evaluation of machine vibration Part 1. General (ISO 10816-1.1995, IDT)

GB/T 6075.3-2011 Mechanical vibration measurement on non-rotating parts Evaluation of machine vibration Part 3. Large rated power

Industrial machinery for in-situ measurement at 15 kW nominal speeds from 120 r/min to 15000 r/min (ISO 10816-3.2009,

IDT)

GB/T 14412-2005 Mechanical installation of mechanical vibration and impact accelerometers (ISO 5348.1998, IDT)

GB/T 18451.1-2012 Design Requirements for Wind Turbines (IEC 61400-1.2005, IDT)

GB/T 19873.1-2005 Machine condition monitoring and diagnostic vibration condition monitoring Part 1. General (ISO 13373-1.

2002, IDT)

NB/T 31004-2011 Guidelines for vibration condition monitoring of wind turbines

3 Terms and Definitions

The terms and definitions defined in GB/T 18451.1-2012 and the following apply to this document.