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Natural Frequencies Json
ASecuritySub-skill of viv-analysis: Natural Frequencies JSON (+1).
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- Added September 9, 2026
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[](https://www.skillsdirectory.com/skills/vamseeachanta-natural-frequencies-json)---
name: viv-analysis-natural-frequencies-json
description: 'Sub-skill of viv-analysis: Natural Frequencies JSON (+1).'
version: 1.0.0
category: engineering
type: reference
scripts_exempt: true
---
# Natural Frequencies JSON (+1)
## Natural Frequencies JSON
```json
{
"member_name": "Riser1",
"n_modes": 5,
"frequencies": [0.15, 0.42, 0.78, 1.21, 1.72],
"periods": [6.67, 2.38, 1.28, 0.83, 0.58],
"boundary_conditions": "tension_controlled",
"effective_tension": 500000.0
}
```
## VIV Screening Report
```json
{
"member": "Brace1",
"natural_frequency_hz": 2.5,
"shedding_frequency_hz": 0.62,
"reduced_velocity": 4.94,
"is_susceptible": true,
"lock_in_margin": 0.94,
"safety_factor": 1.02,
"recommendation": "VIV suppression required"
}
```
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