Oct 5, 2005 14:40
18 yrs ago
1 viewer *
English term
Italy
technical translation specialist
Native in: Italian 
Works in: English to Italian, German to Italian, French to Italian, and 2 more.
pitch resistance
English
Tech/Engineering
Mechanics / Mech Engineering
wind energy
it's about a wind turbine, the English text is not written by a native speaker
"The main factors governing the pitch time are:
Battery voltage and performance
Pitch motor and circuit performance
Aero and mechanical pitch resistance"
...
...what's pitch resistance? aerodynamic resistance?
(I've also some problems understanding "pitch time")
"The main factors governing the pitch time are:
Battery voltage and performance
Pitch motor and circuit performance
Aero and mechanical pitch resistance"
...
...what's pitch resistance? aerodynamic resistance?
(I've also some problems understanding "pitch time")
Responses
+9
11 mins
jccantrell
United States
United States
Native in English
&
English
United States
Was nicht ist, kann noch werden.
Native in: English (Variant: US)
Works in: German to English
Related KudoZ points
:
78
Selected
Lemme see....
Together with your previous question, I understand 'mechanical pitch resistance' to be the mechanical factors (gears, motor, inertia) that resist 'changes in pitch' of the turbine blade. These are separate from aero resistance and would be the same if there was no wind at all. Just like when you start your car engine, the starter has to overcome the mechanical resistance and turn the engine gears, etc.
aero resistance is the role played by the wind. When changing the pitch of the blade, you can increase or decrease the aero resistance. If the blade is set to be perpendicular to the wind, changing the pitch in ANY direction should lower the aerodynamic resistance. If the blade is flat with respect to the wind (think of an airplane wing in flight), then changing the pitch in either direction increases the aerodynamic resistance because the blade is now blocking more of the wind.
My thoughts from the USA.
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Note added at 12 mins (2005-10-05 14:53:35 GMT)
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P.S. The mechanical resistance would be the same in both cases of aerodynamic resistance.
aero resistance is the role played by the wind. When changing the pitch of the blade, you can increase or decrease the aero resistance. If the blade is set to be perpendicular to the wind, changing the pitch in ANY direction should lower the aerodynamic resistance. If the blade is flat with respect to the wind (think of an airplane wing in flight), then changing the pitch in either direction increases the aerodynamic resistance because the blade is now blocking more of the wind.
My thoughts from the USA.
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Note added at 12 mins (2005-10-05 14:53:35 GMT)
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P.S. The mechanical resistance would be the same in both cases of aerodynamic resistance.
Peer comment(s):
| agree |
Tony M
: Yes, that's the way I read it too: the 'resistance to turning' (in the sense of changing the pitch) of the blades
9 mins
|
| agree |
Will Matter
: Yes. "Pitch", in this case, refers to the angle of the blades of the turbine and all of the changes (resistance etc.) that accompany that.
34 mins
|
| agree |
jennifer newsome (X)
47 mins
|
| agree |
Ken Cox
: spot on
51 mins
|
| agree |
Dave Calderhead
: As a former aerodynamics student, I also agree.
1 hr
|
| agree |
Rachel Fell
3 hrs
|
| agree |
Jörgen Slet
9 hrs
|
| agree |
Saleh Chowdhury, Ph.D.
1 day 21 hrs
|
| agree |
Rajan Chopra
2 days 22 hrs
|
4 KudoZ points awarded for this answer.
Comment: "thanks!!"
10 mins
Kurt Porter
Native in English
&
English
Experienced translator/interpreter
Native in: English
Works in: Russian to English, English to Russian, English, and 1 more.
resistance to abrupt up-and-down motion (as caused by a ship or other conveyance)
Pitch time - time spent in the up-and-down motions
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Note added at 12 mins (2005-10-05 14:53:26 GMT)
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It's very important that ship-based aircraft know the vessel's pitch time (and amount) as they calculate their glidepath/approach for landings.
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Note added at 12 mins (2005-10-05 14:53:26 GMT)
--------------------------------------------------
It's very important that ship-based aircraft know the vessel's pitch time (and amount) as they calculate their glidepath/approach for landings.
Peer comment(s):
| neutral |
Will Matter
: I think that "pitch", in this case, refers to the "pitch" or angle of the turbine blades. Your idea is related, it's a similar concept in some ways (angle) but not exactly the same.
39 mins
|
|
Thank you Will.
|
|
| neutral |
Rachel Fell
: isn't it about a wind turbine, though?
3 hrs
|
Discussion