High-temperature vibration modal testing device for variable cross-section carbon fiber resin-based composites
US12241867B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 2024 |
| Grant date | Mar 4, 2025 |
| Priority date | — |
| Expiry date | Oct 30, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/0231
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A high-temperature vibration modal testing device for variable cross-section carbon fiber resin-based composites includes triangular serrated sliding rails, high-temperature steel sliding bayonets, sliding furnace door, water-cooled conduits, dual-axis sliding rail, insulation box, infrared radiation heating array, thin armored thermocouples, observation port, tapping threaded rod, tapping threaded fixture, ceramic force transmission rod, excitation source, laser vibration measurer, vibration measuring port, mechanical pump, and exhaust valve. A variable cross-section carbon fiber resin-based composite test piece is fixed to the high-temperature steel sliding bayonets and fixed to the tapping threaded fixture by the dual-axis sliding rail. During high-temperature vibration modal testing, the infrared radiation heating array provides a high-temperature thermal environment, the excitation source connected to the tapping threaded fixture provides random vibration, and thermal model measurement is performed through the laser vibration measurer. The device can perform high-temperature vibration modal testing on variable cross-section carbon fiber resin-based composites in aerospace flig…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.