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Recent content by ae-bt
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Profile shift in an Epicyclic geartrain
"I know what I'm talking about, but find it hard to explain it to you. I'll try once more." If you had read what I was saying correctly, you would understand that I was talking about a gear and ring gear in isolation. And like I said, the problem was as I had assumed - I had reached the...- ae-bt
- Post #14
- Forum: Gear and Pulley engineering
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Profile shift in an Epicyclic geartrain
Of course changing the value to positive 0.5 makes it work because you are taking a negative number out of the equation. I only care about the values that don't work. As I keep saying those values are purely arbitrary, and I want to know why the equation doesn't work for a profile shift in the...- ae-bt
- Post #9
- Forum: Gear and Pulley engineering
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Profile shift in an Epicyclic geartrain
The formula requires that the internal gear teeth value is expressed as a positive value. I verified this using their numbers and results - unless both their formulas and answers are wrong, I have found errors in their literature before... The example I gave had "x1" as +0.5, not -0.5...- ae-bt
- Post #7
- Forum: Gear and Pulley engineering
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Profile shift in an Epicyclic geartrain
@mfgengear, those are irrelevant to the problem. I am trying to get the code to work out basic dimensions of an arbitrary gearset working. The power and speeds etc are further down the line. @tbuelna, they're just arbitrary values to highlight the problems I'm experiencing. While they might not...- ae-bt
- Post #5
- Forum: Gear and Pulley engineering
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Profile shift in an Epicyclic geartrain
I am trying to calculate some gear parameters for an epicyclic gearbox, and I am struggling with a few aspects... I am using the formula in tables 4.4 and 5.1 found in the 'Elements of Metric Gear Technology' manual by SDP/SI (found here https://sdp-si.com/D805/D805_PDFS/sections/technical.pdf)...- ae-bt
- Thread
- Replies: 15
- Forum: Gear and Pulley engineering
