Description
Return pivot active and duty-weighted tip speeds.
Agricultural machinery budgets combine supplied geometry, speed, efficiency and operating intervals. Nominal capacity differs from measured field performance; slip, headland losses and overlap can use different bases and must not be counted twice. Local hydraulic or static-load terms do not establish equipment safety or suitability.
Return pivot active and duty-weighted tip speeds.
When to use this tool
Use Irrigation Pivot Travel Duty Factor when checking the stated benign machinery geometry, capacity, flow or load convention.
How to use the tool and how it works
- Enter radius, revolutionSeconds, dutyFraction. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read activeTipSpeed, meanTipSpeed. Use the output convention below.
Return pivot active and duty-weighted tip speeds. Require radius >= 0, revolutionSeconds > 0 and dutyFraction in [0,1]; active = 2*pi*radius/revolutionSeconds, mean = active*duty.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| radius | Radius | Required. Finite number; minimum 0. |
| revolutionSeconds | Positive duration of one revolution during active motion; the duty fraction is applied separately to mean speed. | Required. Finite number; strictly above 0. |
| dutyFraction | Duty Fraction Unit: 1. | Required. Finite number; minimum 0; maximum 1. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| activeTipSpeed | Active Tip Speed | Required. Finite number. |
| meanTipSpeed | Mean Tip Speed | Required. Finite number. |
{
"input": {
"radius": 100,
"revolutionSeconds": 1000,
"dutyFraction": 0.5
},
"output": {
"activeTipSpeed": 0.6283185307179586,
"meanTipSpeed": 0.3141592653589793
}
}Limitations and assumptions
- The revolution duration represents active-motion basis here; actual stop/start travel, irrigation delivery and safe operation are not modeled.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Use measured operating data, manufacturer specifications and qualified agricultural/engineering review for actual equipment selection, operation or safety.
References
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