Slewing Ring for Wind Turbines
Slewing Ring for Wind Turbines
(OP)
Hi all,
I am working on the slewing rings used in the pitch system of wind turbines.
We have calculated the tilting moments and axial loads for the following load cases:
- nominal operational condition
- maximum operational condition
- maximum downtime condition
- extreme condition
A service factor of about 2 is also suggested for wind turbine application. My question is: which of the above mentioned tilting moments/axial loads must be multiplied by the service factor? All of them? or only the operational moments/forces?
Thanks
I am working on the slewing rings used in the pitch system of wind turbines.
We have calculated the tilting moments and axial loads for the following load cases:
- nominal operational condition
- maximum operational condition
- maximum downtime condition
- extreme condition
A service factor of about 2 is also suggested for wind turbine application. My question is: which of the above mentioned tilting moments/axial loads must be multiplied by the service factor? All of them? or only the operational moments/forces?
Thanks





RE: Slewing Ring for Wind Turbines
http://www.nrel.gov/wind/publications.html
RE: Slewing Ring for Wind Turbines
RE: Slewing Ring for Wind Turbines
Some factors, based on operating requirements, are here -
http://www.nsk.com.br/upload/file/NSK_CAT_E1254f_1...
RE: Slewing Ring for Wind Turbines
http://www.nrel.gov/wind/pdfs/42362.pdf