|
|
| Re: Calculation (35660) | |||
 |
|||
| Home > SubChat | |||
|
[ Read Responses | Post a New Response | Return to the Index ] |
|
||
|
Re: Calculation |
|
|
Posted by Fulton Frank on Tue Jan 4 13:11:47 2005, in response to Re: Calculation, posted by VictorM on Tue Jan 4 12:30:05 2005. That's preceisly the point, Vic. The rigid axel would cause much slippage if the effective diameter of the inner and outer wheel were the same. But with a beveled flange, the centripital force causes the outer wheel to "ride up" on the bevel. This increases the effective diameter of the outer wheel relative to that of the iner one. Since both wheels have the same angular speed, the larger effective diameter of the outer wheel allows it to cover more length and hence - at one particular speed - not slip at all. Now, obviously if the train's speed is so high that the force is so high that it rides up past the outer diameter of the flange, the train dereails. (that's what the inner guied rail you mentioned is all about preventing). Thanks for the curve radii, but I still need the outter diameter of the wheel...... |
|
|
|