Definition study on multishakers for vibration testing
Abstract
The mechanical coupling of two 140 KN electrodynamic shakers for random vibration testing of Ariane payloads is described. The shakers placed side by side, operate in a range from 5 to 2000 Hz. Tests at 11 g between 20 and 2000 Hz can be performed. Time required for changing the axis of vibration is cut since no manual handling is required. Vertical and horizontal excitation tables are provided. For horizontal tests, a control system based on hydrostatic bearings is used. The table is highly rigid, with satisfactory transverse motion.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- August 1981
- Bibcode:
- 1981STIN...8219526M
- Keywords:
-
- Ariane Launch Vehicle;
- Payloads;
- Shakers;
- Vibration Tests;
- Aluminum;
- Dynamic Structural Analysis;
- Magnesium Alloys;
- Prelaunch Tests;
- Random Vibration;
- Transient Response;
- Vibration Simulators;
- Instrumentation and Photography