FDSynth
Accelerated durability test synthesis from real-world vibration data
Convert multi-channel acceleration time histories into shaker-ready PSD profiles while preserving fatigue damage equivalence across mission life and lab duration targets.
Field data is rich. Lab time is scarce.
Durability teams must compress months of real-world vibration into hours of shaker time without losing damage equivalence or traceability.
From field recordings to shaker-ready PSD
Define mission life, compute damage, synthesize the lab profile.
FDSynth orchestrates PSD, FDS, ERS, and synthesis for each channel using mission targets, duty cycles, and lab duration constraints.
Outcome:Damage-equivalent test profiles you can justify, repeat, and export.
Built for Durability Test Synthesis
Focused engineering tools for mission-based vibration test design.
Mission Profile & Duty Cycles
Assign Event IDs, enforce duty cycles, and share event time across recordings.
Multi-Channel Time Histories
Import CSV/TXT acceleration files with consistent headers and sampling metadata.
PSD / FDS / ERS Engine
Compute PSD, FDS, and ERS with linear spacing and Nyquist-aware limits.
Signal Conditioning
DC removal, HP/LP filters, windowing, detrend, Welch overlap, and PSD crop.
Damage-Equivalent Synthesis
Iterate PSD synthesis to hit target fatigue damage within lab duration.
Time- & Frequency-Domain Fatigue
Rainflow time history or PSD damage with S-N slope, ref load/cycles, and Q-factor.
Results Viewer & Overlay Tools
Interactive plots for PSD/FDS/ERS plus overlays and comparison views.
Project Outputs & Exports
CSV/PNG exports, shaker stats (Grms, velocity, displacement), and session capture.
Use Cases
Typical applications for durability, validation, and test teams.
- Accelerated component validation and shaker test planning
- Field-to-lab correlation for vibration environments
- Compare profiles across test campaigns or suppliers
- Requirement compliance with damage equivalence evidence
- Optimize lab duration vs mission life targets
- Multi-channel durability assessment for assemblies
Outputs & Reliability
Deliverables and guardrails that make test decisions defensible.
Shorter Lab Time
Compress mission life into hours while preserving damage targets per channel.
Traceable Projects
Project folders, session JSON, and history logs keep outputs reproducible.
Damage Equivalence Checks
Target vs synthesized FDS comparison, ERS plots, and shaker statistics.
Ready-to-Share Exports
CSV and plot exports for reports, lab setup, and supplier reviews.
Engineering assumptions made explicit
Switch between time-domain rainflow and frequency-domain PSD damage, configure S-N slope, reference load/cycles, Q-factor, PSD resolution, Welch overlap, and Nyquist-checked limits.
Data Manager and Mission Profile
Manage multiple files with event IDs, mission profile percentages, and dynamic repetition logic in one interactive workspace before running synthesis.
Plan your next durability test with FDSynth
Share your field data and mission targets. We'll help define a damage-equivalent lab profile with reproducible outputs.