ISO 10816-21:2015

Current Revision
Mechanical vibration - Evaluation of machine vibration by measurements on non-rotating parts - Part 21: Horizontal axis wind turbines with gearbox

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ISO 10816-21:2015

Mechanical vibration - Evaluation of machine vibration by measurements on non-rotating parts - Part 21: Horizontal axis wind turbines with gearbox

PUBLISH DATE 2015
ISO 10816-21:2015

ISO 10816-21:2015 specifies the measurement and evaluation of mechanical vibration of wind turbines and their components by taking measurements on non-rotating parts.

It applies to horizontal axis wind turbines with mechanical gearbox and rated generator output exceeding 200 kW and the following design and operational characteristics:

  • a) installation on supporting systems (tower and foundation) made of steel and/or concrete;
  • b) horizontal axis rotor with several rotor blades;
  • c) rotor bearing separate from or integrated into the gearbox;
  • d) generators driven via gearbox;
  • e) generators of the synchronous or asynchronous type (mostly equipped with 4-pole generator);
  • f) generators with only a fixed pole number or which are pole-changeable for speed adjustment;
  • g) output control by rotor blades (pitch or stall wind turbines);
  • h) generator coupled to the power grid via converter or directly.
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