Description
One supplied axis energy contribution with explicit duration and weighting.
Occupational exposure calculations combine measured quantities, duration, reference conditions, weighting, and sampling support. Linear concentrations, squared acceleration, and logarithmic sound levels require different arithmetic. A supplied reference or limit is not automatically the applicable standard, and a local calculation is separate from a full exposure and safety assessment.
One supplied axis energy contribution with explicit duration and weighting.
When to use this tool
Use Vibration Exposure Squared Time One Axis Term when you need this particular sampling, duration, reference-unit, physical-exposure, or reporting-base term.
How to use the tool and how it works
- Enter rmsAcceleration, duration, referenceDuration, axisWeight. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read weightedAcceleration, squaredContribution, normalizedAcceleration. Use the output convention below.
For nonnegative rmsAcceleration, duration, and axisWeight and positive referenceDuration return weightedAcceleration=rms*weight, squaredContribution=weightedAcceleration^2*duration/referenceDuration, and normalizedAcceleration=weightedAcceleration*sqrt(duration/referenceDuration).1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| rmsAcceleration | Rms Acceleration | Required. Finite number; minimum 0. |
| duration | Nonnegative time interval in a unit compatible with the reference duration. | Required. Finite number; minimum 0. |
| referenceDuration | Positive reference interval in the same time unit. | Required. Finite number; strictly above 0. |
| axisWeight | Axis Weight | Required. Finite number; minimum 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| weightedAcceleration | Weighted Acceleration | Required. Finite number. |
| squaredContribution | Duration-normalized acceleration-squared contribution. | Required. Finite number. |
| normalizedAcceleration | Normalized Acceleration | Required. Finite number. |
{
"input": {
"rmsAcceleration": 2,
"duration": 2,
"referenceDuration": 8,
"axisWeight": 1.4
},
"output": {
"weightedAcceleration": 2.8,
"squaredContribution": 1.9599999999999997,
"normalizedAcceleration": 1.4
}
}Limitations and assumptions
- Duration and referenceDuration need one time unit. SquaredContribution uses acceleration squared while normalizedAcceleration uses acceleration; frequency/axis weighting and exposure validity are supplied, without a complete vibration assessment or safety threshold.
- 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 a complete hazard-specific assessment with calibrated measurements and the appropriate exposure model. Verify reference conditions, sampling coverage, weighting, denominator, and the applicable professional or regulatory method.
References
Similar or alternative tools
- Vibration Axis Weight Reference
Combine supplied orthogonal RMS components and weights without selecting occupational limits.
- Noise Exposure Energy One Interval
Equal-energy duration normalization with explicit references, without selecting an exposure limit.