Crane Stability Moment Calculator
Inventory independently resolved crane tipping-axis lever arms and load components, not a supplied two-moment safety ratio or lift clearance. Caller independently establishes units, regime, calibration and applicability; this does not establish design-code compliance, authenticity, operational safety, treatment efficacy or a validated forecast.
Description
Crane stability compares stabilizing and overturning moments about an adopted reference.
Crane stability compares stabilizing and overturning moments about an adopted reference.1
A positive scenario margin does not establish rated capacity or account for every operating condition. Use Crane Stability Moment Calculator to evaluate the supplied inputs under the specific model below.
When to use Crane Stability Moment Calculator
Use Crane Stability Moment Calculator to evaluate the supplied inputs under the specific model below. Establish the units, measurement scope and applicable model or recipe assumptions before entering values.
How to use Crane Stability Moment Calculator and understand its results
- Establish the units, measurement scope and applicable model or recipe assumptions before entering values.
- Enter Caller stabilizing loads n, Caller stabilizing arms m, Caller overturning loads n, Caller overturning arms m using the field table and validation rules below, then run the tool.
- Read Stabilizing moment nm, Overturning moment nm, Signed moment margin nm and interpret units, signs, ordering and placeholders as explained below.
- If the tool reports an input error, correct that field and rerun. A successful false result, empty match list or unknown-evidence placeholder has the specific meaning described here; check the limitations before applying the result.
| Input field | Meaning | Value type | Requirement |
|---|---|---|---|
| callerStabilizingLoadsN | Caller stabilizing loads n | array of number | Required; constraints below |
| callerStabilizingArmsM | Caller stabilizing arms m | array of number | Required; constraints below |
| callerOverturningLoadsN | Caller overturning loads n | array of number | Required; constraints below |
| callerOverturningArmsM | Caller overturning arms m | array of number | Required; constraints below |
Enter nonnegative stabilizing loads in N and matched arms in m, and a separate nonempty aligned pair of overturning loads and arms. The two groups need not have the same length. Sum each load-times-arm product and subtract overturning moment from stabilizing moment. The signed margin is in N·m and includes only the supplied reference and load cases.
stableMoment = ΣstableLoad×arm; overturningMoment = ΣoverturningLoad×arm; margin = stable−overturning Field order, units and branch conditions follow the implementation explanation above.
| Output field | Meaning | Value type |
|---|---|---|
| stabilizingMomentNm | Stabilizing moment nm | number |
| overturningMomentNm | Overturning moment nm | number |
| signedMomentMarginNm | Signed moment margin nm | number |
{
"input": {
"callerStabilizingLoadsN": [
10,
20
],
"callerStabilizingArmsM": [
2,
1
],
"callerOverturningLoadsN": [
5,
10
],
"callerOverturningArmsM": [
1,
3
]
},
"output": {
"stabilizingMomentNm": 40,
"overturningMomentNm": 35,
"signedMomentMarginNm": 5
}
}Limitations and assumptions
A positive scenario margin does not establish rated capacity or account for every operating condition. Apply the exact scope and assumptions described above.
All listed fields require explicit values. Unexpected fields, incorrect types, nonfinite numbers and sparse arrays fail validation. Domain-specific bounds, alignments and supported tokens are stated above; extremely large inputs or outputs can also be rejected. These errors differ from successful results such as false, no matches or unknown evidence.
Alternative or Complementary methods
Use Airport Pavement PCN Calculator for a related task: A pavement-demand screen compares supplied observations with independently chosen bounds.
Use Crane Load Chart Calculator for a related task: A crane chart comparison needs the correct independently supplied limits and measurements.
References
-
Crane Stability Moment Calculator — tool.io
Similar or alternative tools
- Airport Pavement PCN Calculator
A pavement-demand screen compares supplied observations with independently chosen bounds.
- Crane Load Chart Calculator
A crane chart comparison needs the correct independently supplied limits and measurements.