Vibration testing system
US4011749A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 2, 1976 |
| Grant date | Mar 15, 1977 |
| Priority date | — |
| Expiry date | Feb 2, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M7/06
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A multi-degree-of-freedom shock and vibration testing system which includes a specimen-holding table having short projections engaged by hydraulic actuator assemblies. Each actuator assembly includes a pair of hydraulic actuators on opposite sides of the projection and a servo valve for connecting the actuators to a source of pressured hydraulic fluid and to a drain, to maintain the pair of actuators pressed firmly against opposite sides of the projection while moving substantially synchronously. A hydrostatic bearing pad bears against a rounded end of each actuator and against opposite sides of the projection, to permit the projection to slide perpendicular to the motion of the actuators and to pivot.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.