Tri-axial Hybrid Vibration Isolator
First Claim
1. A three-axis device for reducing vibrations transmitted between a base and a load, the device comprising:
- a passive isolation assembly including a first frame, a plurality of passive lateral isolators supporting the support frame on the base, and a plurality of passive vertical isolators;
an actuator assembly including a second frame, a vertical actuator arranged between the load and the second frame, and a plurality of lateral actuators arranged between the second frame and the passive vertical isolators.
2 Assignments
0 Petitions
Accused Products
Abstract
A tri-axial vibration isolation device having: a passive isolation assembly including a first frame, a plurality of passive lateral isolators supporting the support frame on the base, and a plurality of passive vertical isolators; and an actuator assembly including a second frame, a vertical actuator arranged between the load and the second frame, and a plurality of lateral actuators arranged between the second frame and the passive vertical isolators. The actuators can be piezoelectric elements that change their thickness in response to an electrical signal. The lateral actuators are arranged in oppositely poled pairs. An accelerometer or other sensor provides information to a controller that controls the actuators.
-
Citations
21 Claims
-
1. A three-axis device for reducing vibrations transmitted between a base and a load, the device comprising:
-
a passive isolation assembly including a first frame, a plurality of passive lateral isolators supporting the support frame on the base, and a plurality of passive vertical isolators;
an actuator assembly including a second frame, a vertical actuator arranged between the load and the second frame, and a plurality of lateral actuators arranged between the second frame and the passive vertical isolators. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. A device for reducing vibrations transmitted from a first structure to a second structure, the device comprising:
-
a first support member arranged between the first structure and the second structure;
at least one actuator arranged between the first support member and the first structure;
a second support member arranged between the first support member and the second structure;
at least one passive support member arranged between the second support member and the second structure, at least one actuator arranged between the first support member and the second support member, and at least one passive isolation member arranged between the first support member and the second support member, the support members being stiffer than the passive isolation members. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21)
-
Specification