ADAPTIVE THREE PARAMETER ISOLATOR ASSEMBLIES INCLUDING EXTERNAL MAGNETO-RHEOLOGICAL VALVES

摘要

Embodiments of an adaptive three parameter isolator assembly are provided, as are embodiments of a spacecraft isolation system including a plurality of isolator assemblies. In one embodiment, the isolator assembly includes a three parameter isolator having opposing hydraulic chambers configured to be filled with a Magneto-Rheological (MR) damping fluid. An MR valve external to the three parameter isolator is fluidly coupled between the opposing hydraulic chambers. The MR valve is configured to generate a magnetic field through which the MR damping fluid passes as the fluid flows between the opposing hydraulic chambers. A control device is operably coupled to the MR valve and is configured to control the strength of the magnetic field to adjust the viscosity of the MR damping fluid during operation of the three parameter isolator.

主权项

1. An adaptive three parameter isolator assembly, comprising:
a three parameter isolator having opposing hydraulic chambers configured to be filled with a Magneto-Rheological (MR) damping fluid; an MR valve external to the three parameter isolator and fluidly coupled between the opposing hydraulic chambers, the MR valve configured to generate a magnetic field through which the MR damping fluid passes when flowing between the opposing hydraulic chambers; and a control device operably coupled to the MR valve and configured to control the strength of the magnetic field to adjust the viscosity of the MR damping fluid during operation of the three parameter isolator; wherein the control device is further configured to selectively operate in a spacecraft launch mode and in an in-orbit mode, and wherein the control device adjusts the magnetic field to decrease the dynamic stiffness of the three parameter isolator when transitioning from the spacecraft launch mode to the in-orbit mode.