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- W239053393 abstract "Abstract : This thesis develops an adaptive controller that actively suppresses a single frequency disturbance source at a remote position and tests the system on the NPS Space Truss. The experimental results are then compared to those predicted by an ANSYS finite element model. The NPS space truss is a 3.7-meter long truss that simulates a space- borne appendage with sensitive equipment mounted at its extremities. One of two installed piezoelectric actuators and an Adaptive Multi-Layer LMS control law were used to effectively eliminate an axial component of the vibrations induced by a linear proof mass actuator mounted at one end of the truss. Experimental and analytical results both demonstrate reductions to the level of system noise. Vibration reductions in excess of 50dB were obtained through experimentation and over 100dB using ANSYS, demonstrating the ability to model this system with a finite element model. This thesis also proposes a method to use distributed quartz accelerometers to evaluate the location, direction, and energy of impacts on the NPS space truss using the dSPACE data acquisition and processing system to capture the structural response and compare it to known reference signals." @default.
- W239053393 created "2016-06-24" @default.
- W239053393 creator A5058033085 @default.
- W239053393 date "2001-06-01" @default.
- W239053393 modified "2023-09-27" @default.
- W239053393 title "Adaptive Multi-Layer LMS Controller Design and Its Application to Active Vibration Suppression on a Space Truss" @default.
- W239053393 hasPublicationYear "2001" @default.
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