Comprehensive Solutions for Aircraft Structural Dynamics Certification
Ensure airworthiness and structural integrity with advanced Ground Vibration Testing (GVT) systems. These solutions deliver precise, full‑scale modal analysis of aircraft and sub‑assemblies—critical for flutter prevention, model validation, and compliance with airworthiness standards. Ideal for aircraft developers, aerospace test labs, and certification authorities.
Reliable Tools for High‑Channel, In‑Motion Structural Testing
Advanced GVT Systems
Deploy MIMO modal testing with multiple accelerometers and modal shakers mounted across the aircraft structure. High‑channel count data acquisition platforms capture large FRF datasets in one test, using excitation types like burst random, sine, and pseudo‑random. Data is processed with high‑resolution algorithms to extract natural frequencies, mode shapes, and damping ratios for comprehensive structural analysis.
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Scalable Systems from Prototype to Fleet Level
Precision Testing for Aerospace Professionals
From prototype aircraft in development to fleet maintenance and military retrofits, GVT systems offer modular configurations for any size or type. Workflow includes guided mesh‑grid instrumentation, synchronized shaker‑accelerometer measurement, and geometry import via FEA/CAD tools. This enables fast correlation, simulation tuning, and flutter boundary verification.
- High‑Channel DAQ Support: Handles 100+ accelerometers and multiple shakers with synchronized acquisition.
- Flexible Excitation Profiles: Choose Burst Random, Sine, Chirp, or Pseudo‑Random signals to obtain clean, reliable FRFs.
- Geometry‑Assisted Setup: Import FEA/CAD models to plan optimal shaker and sensor placement.
- Advanced Modal Analysis Tools: Use Time‑Domain LSCE or Frequency‑Domain Poly‑X methods for modal parameter extraction.
- One‑Shot Testing Capability: Full assembly analysis in a single test run—ideal for large aircraft.
- Model Correlation & Flutter Analysis: Calibrate FEA models to real data for final flutter envelope validation.
FAQs
FAQs
To extract modal data (natural frequencies, damping, mode shapes) for flutter prediction, structural validation, and certification compliance.
Aircraft is lightly suspended, instrumented with 50+ accelerometers, and excited via multiple shakers. FRFs are collected and analyzed using intelligent post‑processing software.
Non‑contact techniques (like DIC or laser radar) and guided FEA-informed setups reduce sensor preparation and minimize aircraft downtime.
Aircraft OEMs, certification bodies, military and defense agencies, research institutes, and aerospace integrators.
Yes—systems can adapt to small trainers, large commercial jets, amphibious, and military aircraft, with frequency and payload scalability.
