Simulator having a weight supporting actuator

Details Simulator having a weight supporting actuator Simulator having a weight supporting actuator

1998-06-12

1999-09-07

Hafer, Robert A.

Education and demonstration

Vehicle operator instruction or testing

434 30, 434 55, 434 58, 434 62, G09B 902, G09B 908, G09B 904

Patent

active

059477407

ABSTRACT:
A simulator includes a base plate, a platform, a plurality of actuators, each of the actuators having a hydraulic cylinder, a sensor, a servo valve and a pair of universal joints, and a weight supporting actuator including a pressure sensor and designed to support a specific weight of the platform and the substance thereon. The sensors and the pressure sensor sense the variation of length and weight imposed on each of the hydraulic cylinders, respectively. The servo valve selectively passes a high pressure fluid to an upper and a lower portions of the cylinder and the pair of universal joints have a three degrees of freedom to allow the platform to have six degrees of freedom. A controller controls the servo valve of both actuators to vary the length of each of the hydraulic cylinders thereof, thereby lessening the load imposed on the actuators.

REFERENCES:
patent: 4343610 (1982-08-01), Chou
patent: 5605462 (1997-02-01), Denne

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