Langford Analytic · Knowledge Base

PSD Input Checklist

A checklist for verifying a PSD input specification before use in analysis or test.

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checklistPSDinputverificationspecification

Checklist

  • PSD form confirmed (g²/Hz, one-sided)
  • Breakpoints listed and verified
  • Slopes verified (dB/octave, not dB/decade)
  • Frequency range covers relevant structural modes
  • Grms computed and verified against expected level
  • Units consistent with the analysis tool
  • Application location and direction correct
  • For multi-input: cross-spectral terms defined if correlated
  • PSD source documented