Title:
DISPLACEMENT OF OBJECT WITH HYDRAULIC ACTUATORS
Document Type and Number:
Japanese Patent JP2019143798
Kind Code:
A
Abstract:
To provide a highly energy efficient apparatus and method for stress tests and for other applications where an object is displaced and the direction of displacement is reversed repeatedly.SOLUTION: Provided is a system 1 for stress testing of a turbine blade 2. A system controller 4 controls four different hydraulic power units 6 which drive respective hydraulic actuators (rams) 8 that bear on the wind turbine blade at different locations along its length through object engagement elements 10 which may be fitments shaped to conform to the turbine blade or may simply be the ends of the actuators. The hydraulic power units are driven by an electrical power supply. Pressure sensors (not shown) monitor the pressure of the hydraulic fluid supplied to each actuator by the respective power unit and position sensors monitor the deflection of each actuator (e.g. distance travelled, or orientation in the case of a rotary actuator).SELECTED DRAWING: Figure 1
Inventors:
WILLIAM HUGH SALVIN RAMPEN
NIALL CALDWELL
PETER MCCURRY
NIALL CALDWELL
PETER MCCURRY
Application Number:
JP2019005000A
Publication Date:
August 29, 2019
Filing Date:
January 16, 2019
Export Citation:
Assignee:
ARTEMIS INTELLIGENT POWER LTD
International Classes:
F15B15/00; F04B1/06
Domestic Patent References:
| JP2014532134A | 2014-12-04 |
Attorney, Agent or Firm:
Fukami patent office