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19 Jun 2006, 11:47 (Ref:1637141)
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#1 | |
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Rookie
Join Date: Jun 2006
Posts: 2
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Gearbox stiffness
Cheers to everybody!
 I would like to ask a question here. Let's say we have a given engine with a given power and torque. In the (a) configuration we install to this engine a close-ratio gearbox and in the (b) we install a long-ratio gearbox. Which one of these two gearboxes will have an easier job to do in terms of stiffness? The close one or the long one and why? We assume that all the parameters of the two boxes are identical (materials, etc) except of the ratios. Thanks in advance! 
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19 Jun 2006, 12:02 (Ref:1637155)
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#2 | |
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Rookie
Join Date: Jun 2006
Posts: 2
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Obviously, i could have put it also like this: Which one set of gears are facing more loads at the whole rpm band of the engine? The 4th gearset (1:1) or let's say the second gearset (2.5:1)? And why?
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21 Jun 2006, 09:12 (Ref:1638284)
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#3 | ||
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Rookie
Join Date: Jul 2005
Posts: 20
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the long one will have an easier job because of less tourqe (NM)being exerted.
tourqe is directly proportional to gear ratio. if the ratio is 2,5:1 the torque is multiplied by 2,5 and the gearbox casing have over double the amount of torque to struggle with than the clutch housing. |
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