Sikorsky Aircraft Corporation

Andreas Bernhard

Alan Matthew Finn

James P Cycon

Mark W Davis

Alexander I Khibnik

Jun Ma

Mauro Jorge Atalla

Peter F Horbury

Alexander Khibnik

Mauro Jorgre Atalla

A trim tab assembly includes first and second shape memory alloy (SMA) actuators and a trim tab substrate which provide elastic/plastic locking in response to an induced strain actuation.

Self locking trim tab

A method and system estimates a desired output signal waveform based on measured state parameters. A model training step generates a model by empirically obtaining measured signal waveforms corresponding to measured state parameters. Features, such as mode shapes and mode amplitudes, are extracted from the measured signals and stored in an estimation model along with coefficients of the model that correlate measured state parameters with the mode amplitudes. During part operation, the state parameters measured during operation are entered into the estimation model to obtain estimated features in a estimated signal waveform. The estimated features are then used to synthesize the estimated signal reflecting the actual operation of the operating part. The estimation model therefore allows estimation of an entire signal waveform from the state parameters.

Virtual load monitoring system and method

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Shelton, CT, United States of America

Andreas Bernhard