Vibration FFT Analysis

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Overview — All-in-one view

Vector Sum — Peak Particle Velocity

Time Traces — T / V / L per channel

FFT Analysis — Dominant frequencies

Signal vs Noise — Reliability check

Wave Analysis — P/S/Rayleigh + polarization

Compare — Two-monitor velocity solution

3D Motion — Interactive particle motion

Forward Array Synthesis — Predicted L/T/V from KAP pattern

Load Pattern 0 holes

KAP / JSON / ZIP
hole positions + decks

CSV
Kirra ChargingTiming export

Loaded holes

ID	x	y	z	kg	t (ms)

Activity log

Monitor ?

East (m)

North (m)

RL (m)

L axis bearing (°) ?

L dip (°) ?

Source position ?

Physics ?

P-wave speed (m/s)

S-wave speed (m/s)

K (site law)

Include S-wave

S/P amplitude ratio

Wavelet ?

Type

fP (Hz)

fS (Hz)

Sample rate (Hz)

Duration (s)

Surface waves Love?

Include Love wave

Amp factor ?

fLove (Hz)

vLove (m/s)

Horizontal transverse polarisation, cylindrical 1/√r spreading, plan distance. No V component.

Pattern view no holes loaded

plan view · timing colour map

Synthesis result

L peak

—mm/s

T peak

—mm/s

V peak

—mm/s

Vector sum

—mm/s

L peak f

—Hz

T peak f

—Hz

V peak f

—Hz

Polarisation θ

—°

Geometric bearing

—°

App. − Geom.

—°

Synthetic time series

L · radial

T · transverse

V · vertical

FFT spectra 0–100 Hz

L spectrum

T spectrum

V spectrum

Particle motion · horizontal hodogram

Left: L–T plane (looking down). Right: L–V plane (looking along T). Principal axis dashed.